Integer comparison

Get two integers from the user.

Then, display a message if the first integer is:

less than,
equal to, or
greater than

the second integer.

Test the condition for each case separately, so that all three comparison operators are used in the code.

Related task

String comparison

11l

<lang 11l>V a = Int(input(‘Enter value of a: ’)) V b = Int(input(‘Enter value of b: ’))

I a < b

  print(‘a is less than b’)

I a > b

  print(‘a is greater than b’)

I a == b

  print(‘a is equal to b’)</lang>

360 Assembly

Input is done by a standard register 1 pointed parameter list. <lang 360asm>INTCOMP PROLOG

Reg1=Addr(Addr(argA),Addr(argB))

        L     2,0(1)        Reg2=Addr(argA)
        L     3,4(1)        Reg3=Addr(argB)
        L     4,0(2)        Reg4=argA
        L     5,0(3)        Reg5=argA
        ST    4,A           Store R4 in A
        ST    5,B           Store R5 in B

if (A < B)

        L     0,A           load R0
        C     0,B           compare
        BL    LOWER         branch if lower

if (A = B)

        L     0,A           load R0
        C     0,B           compare
        BE    EQUAL         branch if equal

if (A < B)

        L     0,A           load R0
        C     0,B           compare
        BH    GREATER       branch if higher

other case ?

        B     RETURN

LOWER WTO 'A<B'

        B     RETURN

EQUAL WTO 'A=B'

        B     RETURN

GREATER WTO 'A>B'

        B     RETURN

RETURN EPILOG A DS F 31-bit signed integer B DS F 31-bit signed integer

        END</lang>

Code is called as a subroutine (i.e. JSR Compare). Specific OS/hardware routines for user input and printing are left unimplemented. <lang 6502asm>Compare PHA ;push Accumulator onto stack JSR GetUserInput ;routine not implemented ;integers to compare now in memory locations A and B LDA A CMP B ;sets flags as if a subtraction (a - b) had been carried out BCC A_less_than_B ;branch if carry clear BEQ A_equals_B ;branch if equal ;else A greater than B JSR DisplayAGreaterThanB;routine not implemented JMP Done A_less_than_B: JSR DisplayALessThanB ;routine not implemented JMP Done A_equals_B: JSR DisplayAEqualsB ;routine not implemented Done: PLA ;restore Accumulator from stack RTS ;return from subroutine</lang>

8051 Assembly

Input/output is specific to hardware; this code assumes the integers are in registers a and b. There is only one comparison instruction to use: 'not equal'. <lang asm>compare: push psw cjne a, b, clt ; a == b ; implement code here jmp compare_ clt: jc lt ; a > b ; implement code here jmp compare_ lt: ; a Testing for (a <= b) or (a >= b) can be performed by changing the jumps.

8th

The user would put the numbers on the stack and then invoke 'compare': <lang forth>

compare \ n m --

 2dup n:= if "They are equal" . cr then
 2dup n:< if "First less than second" . cr then
 n:> if "First greater than second" . cr then ;

</lang> Alternatively one could use the "n:cmp" word

AArch64 Assembly

Works with: aarch64-linux-gnu-as/qemu-aarch64

Compare once (cmp x0, x1) and use conditional branching (b.eq and b.gt). <lang ARM_Assembly>.equ STDOUT, 1 .equ SVC_WRITE, 64 .equ SVC_EXIT, 93

.text .global _start

_start: stp x29, x30, [sp, -16]! mov x0, #123 mov x1, #456 mov x29, sp bl integer_compare // integer_compare(123, 456); mov x0, #-123 mov x1, #-456 bl integer_compare // integer_compare(-123, -456); mov x0, #123 mov x1, #123 bl integer_compare // integer_compare(123, 123); ldp x29, x30, [sp], 16 mov x0, #0 b _exit // exit(0);

// void integer_compare(long long x, long long y) - compare two signed integers and print a message integer_compare: cmp x0, x1 mov x0, #STDOUT b.eq 1f b.gt 2f // x < y ldr x1, =msg_lt mov x2, #17 b _write 1: // x == y ldr x1, =msg_eq mov x2, #16 b _write 2: // x > y ldr x1, =msg_gt mov x2, #20 b _write

msg_lt: .ascii "x is less than y\n" msg_eq: .ascii "x is equal to y\n" msg_gt: .ascii "x is greater than y\n" .align 4

//////////////// system call wrappers // ssize_t _write(int fd, void *buf, size_t count) _write: stp x29, x30, [sp, -16]! mov x8, #SVC_WRITE mov x29, sp svc #0 ldp x29, x30, [sp], 16 ret

// void _exit(int retval) _exit: mov x8, #SVC_EXIT svc #0</lang>

ABAP

This works in ABAP version 7.40 and above. Note that empty input is evaluated to 0.

<lang ABAP> report z_integer_comparison.

parameters: a type int4, b type int4.

data(comparison_result) = cond string(

 when a < b " can be replaced by a lt b
 then |{ a } is less than { b }|
 when a = b " can be replaced by a eq b
 then |{ a } is equal to { b }|
 when a > b " can be replaced by a gt b
 then |{ a } is greater than { b }| ).

write comparison_result. </lang>

Ada

<lang ada>with Ada.Text_IO; use Ada.Text_IO; with Ada.Integer_Text_IO; use Ada.Integer_Text_Io;

procedure Compare_Ints is

  A, B : Integer;

begin

  Get(Item => A);
  Get(Item => B);

  -- Test for equality
  if A = B then
     Put_Line("A equals B");
  end if;

  -- Test For Less Than
  if A < B then
     Put_Line("A is less than B");
  end if;

  -- Test For Greater Than
  if A > B then
     Put_Line("A is greater than B");
  end if;

end Compare_Ints;</lang>

Aime

<lang aime>void output(integer a, integer b, text condition) {

   o_integer(a);
   o_text(condition);
   o_integer(b);
   o_byte('\n');

}

integer main(void) {

   if (a < b) {

output(a, b, " is less then ");

   if (a == b) {

output(a, b, " is equal to ");

   if (a > b) {

output(a, b, " is greater than ");

   return 0;

}</lang> Run as:

aime FILE integer a 33 integer b 133

ALGOL 68

Works with: ALGOL 68 version Revision 1 - no extensions to language used

Works with: ALGOL 68G version Any - tested with release 1.18.0-9h.tiny

Works with: ELLA ALGOL 68 version Any (with appropriate job cards) - tested with release 1.8-8d

Note: the standard includes the characters "≤", "≥" and "≠". These appear in the character sets GOST 10859, ISOtech and IBM's EBCDIC e.g. code page 293, and in extended ASCII code pages 910 & 910

The above distributions of both ALGOL 68G and ELLA ALGOL 68 compilers only allow ASCII characters (ASCII has neither "≤", "≥" nor "≠" characters). <lang algol68>main: (

 INT a, b;
 read((a, space, b, new line));

 IF a <= b OR a LE b # OR a ≤ b # THEN
   print((a," is less or equal to ", b, new line))
 FI;
 IF a < b OR a LT b THEN
   print((a," is less than ", b, new line))
 ELIF a = b OR a EQ b THEN
   print((a," is equal to ", b, new line))
 ELIF a > b OR a GT b THEN
   print((a," is greater than ", b, new line))
 FI;
 IF a /= b OR a NE b # OR a ≠ b # THEN
   print((a," is not equal to ", b, new line))
 FI;
 IF a >= b OR a GE b # OR a ≥ b # THEN
   print((a," is greater or equal to ", b, new line))
 FI

)</lang>

Output:

+3 is less or equal to          +4
         +3 is less than          +4
         +3 is not equal to          +4

ALGOL W

<lang algolw>begin

   integer a, b;

   write( "first  number: " );
   read( a );
   write( "second number: " );
   read( b );

   if a < b then write( a, " is less    than ", b );
   if a = b then write( a, " is equal   to   ", b );
   if a > b then write( a, " is greater than ", b );

end.</lang>

AppleScript

<lang AppleScript>set n1 to text returned of (display dialog "Enter the first number:" default answer "") as integer set n2 to text returned of (display dialog "Enter the second number:" default answer "") as integer set msg to {n1} if n1 < n2 then set end of msg to " is less than " else if n1 = n2 then set end of msg to " is equal to " else if n1 > n2 then set end of msg to " is greater than " end if set end of msg to n2 return msg as string</lang>

Or... <lang AppleScript>set n1 to text returned of (display dialog "Enter the first number:" default answer "") as integer set n2 to text returned of (display dialog "Enter the second number:" default answer "") as integer if n1 < n2 then return "" & n1 & " is less than " & n2 if n1 = n2 then return "" & n1 & " is equal to " & n2 if n1 > n2 then return "" & n1 & " is greater than " & n2</lang>

ARM Assembly

Works with: as version Raspberry Pi

/* ARM assembly Raspberry PI */ /* program comparNumber.s */

/* Constantes */ .equ BUFFERSIZE, 100 .equ STDIN, 0 @ Linux input console .equ STDOUT, 1 @ Linux output console .equ EXIT, 1 @ Linux syscall .equ READ, 3 @ Linux syscall .equ WRITE, 4 @ Linux syscall /* Initialized data */ .data szMessNum1: .asciz "Enter number 1 : \n" szMessNum2: .asciz "Enter number 2: \n" szMessEqual: .asciz "Number 1 and number 2 are equals.\n" szMessSmall: .asciz "Number 1 smaller than number 2.\n" szMessLarge: .asciz "Number 1 larger than number 2.\n" szCarriageReturn: .asciz "\n"

/* UnInitialized data */ .bss sBuffer: .skip BUFFERSIZE

/* code section */ .text .global main main: /* entry of program */

   push {fp,lr}    /* saves 2 registers */
   ldr r0,iAdrszMessNum1 @ message address
   ldr r1,iAdrsBuffer   @ buffer address 
   mov r2,#BUFFERSIZE
   bl numberEntry
   mov r5,r0               @ save number 1 -> r5
   ldr r0,iAdrszMessNum2  @ message address

ldr r1,iAdrsBuffer @ buffer address mov r2,#BUFFERSIZE

   bl numberEntry

cmp r5,r0 @ compar number 1 and number 2

   beq equal

blt small bgt large @ never !! b 100f equal:

   ldr r0,iAdrszMessEqual    @ message address

b aff small:

   ldr r0,iAdrszMessSmall    @ message address

b aff large:

   ldr r0,iAdrszMessLarge    @ message address

b aff aff:

   bl affichageMess      @ display message

100: /* standard end of the program */

   mov r0, #0                  @ return code
   pop {fp,lr}                 @restaur 2 registers
   mov r7, #EXIT              @ request to exit program
   swi 0                       @ perform the system call

iAdrszMessNum1: .int szMessNum1 iAdrszMessNum2: .int szMessNum2 iAdrszMessEqual: .int szMessEqual iAdrszMessSmall: .int szMessSmall iAdrszMessLarge: .int szMessLarge iAdrsBuffer: .int sBuffer iAdrszCarriageReturn: .int szCarriageReturn /******************************************************************/ /* Number entry with display message and conversion number */ /******************************************************************/ /* r0 contains message address */ /* r1 contains buffer address /* r2 contains buffersize */ /* r0 return a number */ numberEntry:

   push {fp,lr}         @ save  registres */ 
   push {r4,r6,r7}          @ save others registers 
   mov r4,r1              @ save buffer address -> r4
   bl affichageMess
   mov r0,#STDIN         @ Linux input console
   //ldr r1,iAdrsBuffer   @ buffer address 
   //mov r2,#BUFFERSIZE   @ buffer size 
   mov r7, #READ         @ request to read datas
   swi 0                  @ call system
   mov r1,r4              @ buffer address 
   mov r2,#0                @ end of string
   strb r2,[r1,r0]         @ store byte at the end of input string (r0
   @ 
   mov r0,r4              @ buffer address
   bl conversionAtoD    @ conversion string in number in r0

100:

   pop {r4,r6,r7}     		/* restaur others registers */
   pop {fp,lr}    				/* restaur des  2 registres */ 
   bx lr	        			/* return  */

/******************************************************************/ /* display text with size calculation */ /******************************************************************/ /* r0 contains the address of the message */ affichageMess:

   push {fp,lr}    			/* save  registres */ 
   push {r0,r1,r2,r7}    		/* save others registers */
   mov r2,#0   				/* counter length */

1: /* loop length calculation */

   ldrb r1,[r0,r2]  			/* read octet start position + index */
   cmp r1,#0       			/* if 0 its over */
   addne r2,r2,#1   			/* else add 1 in the length */
   bne 1b          			/* and loop */
                               /* so here r2 contains the length of the message */
   mov r1,r0        			/* address message in r1 */
   mov r0,#STDOUT      		/* code to write to the standard output Linux */
   mov r7, #WRITE             /* code call system "write" */
   swi #0                      /* call systeme */
   pop {r0,r1,r2,r7}     		/* restaur others registers */
   pop {fp,lr}    				/* restaur des  2 registres */ 
   bx lr	        			/* return  */

/******************************************************************/

/* Convert a string to a number stored in a registry */ /******************************************************************/ /* r0 contains the address of the area terminated by 0 or 0A */ /* r0 returns a number */ conversionAtoD:

   push {fp,lr}         @ save 2 registers 
   push {r1-r7}         @ save others registers 
   mov r1,#0
   mov r2,#10           @ factor 
   mov r3,#0            @ counter 
   mov r4,r0            @ save address string -> r4 
   mov r6,#0            @ positive sign by default 
   mov r0,#0            @ initialization to 0

1: /* early space elimination loop */

   ldrb r5,[r4,r3]     @ loading in r5 of the byte located at the beginning + the position 
   cmp r5,#0            @ end of string -> end routine
   beq 100f
   cmp r5,#0x0A        @ end of string -> end routine
   beq 100f
   cmp r5,#' '          @ space ? 
   addeq r3,r3,#1      @ yes we loop by moving one byte 
   beq 1b
   cmp r5,#'-'          @ first character is -    
   moveq r6,#1         @  1 -> r6
   beq 3f              @ then move on to the next position

2: /* beginning of digit processing loop */

   cmp r5,#'0'          @ character is not a number 
   blt 3f
   cmp r5,#'9'          @ character is not a number
   bgt 3f
   /* character is a number */
   sub r5,#48
   ldr r1,iMaxi       @ check the overflow of the register    
   cmp r0,r1
   bgt 99f            @ overflow error
   mul r0,r2,r0         @ multiply par factor 10 
   add r0,r5            @ add to  r0

3:

   add r3,r3,#1         @ advance to the next position 
   ldrb r5,[r4,r3]     @ load byte 
   cmp r5,#0            @ end of string -> end routine
   beq 4f
   cmp r5,#0x0A            @ end of string -> end routine
   beq 4f
   b 2b                 @ loop

4:

   cmp r6,#1            @ test r6 for sign 
   moveq r1,#-1
   muleq r0,r1,r0       @ if negatif, multiply par -1 
   b 100f

99: /* overflow error */

   ldr r0,=szMessErrDep
   bl   affichageMess
   mov r0,#0      @ return  zero  if error

100:

   pop {r1-r7}          @ restaur other registers 
   pop {fp,lr}          @ restaur   2 registers 
   bx lr                 @return procedure

/* constante program */ iMaxi: .int 1073741824 szMessErrDep: .asciz "Too large: overflow 32 bits.\n"

</lang>

Arturo

<lang rebol>a: to :integer input "enter a value for a: " b: to :integer input "enter a value for b: "

if ab [ print [ a "is greater than" b ] ] if a=b [ print [ a "is equal to" b ] ]</lang>

Astro
<lang python>let a = input('Enter value of a: ') let b = input('Enter value of b: ')
if a < b:
print 'a is less than b'
elif a > b:
print 'a is greater than b'
elif a == b:
print 'a is equal to b'</lang>
AutoHotkey
Error checking is performed automatically by attaching UpDowns to each of the Edit controls. UpDown controls always yield an in-range number, even when the user has typed something non-numeric or out-of-range in the Edit control. The default range is 0 to 100. <lang autohotkey>Gui, Add, Edit Gui, Add, UpDown, vVar1 Gui, Add, Edit Gui, Add, UpDown, vVar2 Gui, Add, Button, Default, Submit Gui, Show Return
ButtonSubmit:
Gui, Submit, NoHide If (Var1 = Var2) MsgBox, % Var1 "=" Var2 Else If (Var1 < Var2) MsgBox, % Var1 "<" Var2 Else If (Var1 > Var2) MsgBox, % Var1 ">" Var2
Return
GuiClose:
ExitApp</lang>
Avail
<lang Avail>// This code doesn't try to protect against any malformed input. a ::= next line from standard input→integer; b ::= next line from standard input→integer; If a > b then [Print: "a > b";] else if a 
AWK
<lang awk>/[0-9]* [0-9]*/{ if ($1 == $2) print $1, "is equal to", $2 if ($1 < $2) print $1, "is less than", $2 if ($1 > $2) print $1, "is greater than", $2 }</lang>
In awk, a double equals symbol is required to test for equality. A single equals sign is used for assignment, and will cause a bug if it is used within a boolean expression:
<lang awk># This code contains a bug IF (n=3) PRINT "n is equal to 3" # The incorrectly used equals sign will set n to a value of 3</lang>
Axe
<lang axe>Lbl FUNC If r₁<r₂
Disp "LESS THAN",i
End If r₁=r₂
Disp "EQUAL TO",i
End If r₁>r₂
Disp "GREATER THAN",i
End Return</lang>
BASIC
BaCon
<lang freebasic> INPUT "Enter first number " ,a INPUT "Enter second number " ,b IF a b THEN PRINT a, " is greater than ", b</lang>

Works with: QuickBasic version 4.5
<lang qbasic>CLS INPUT "a, b"; a, b 'remember to type the comma when you give the numbers PRINT "a is "; IF a b THEN PRINT "greater than "; PRINT "b"</lang>
Applesoft BASIC
<lang ApplesoftBasic>10 INPUT "ENTER TWO INTEGERS: "; A%, B% 20 A$(0) = "NOT " 30 PRINT A% " IS " A$(A% < B%) "LESS THAN " B% 40 PRINT A% " IS " A$(A% = B%) "EQUAL TO " B% 50 PRINT A% " IS " A$(A% > B%) "GREATER THAN " B%</lang>
IS-BASIC
<lang IS-BASIC>100 INPUT PROMPT "Enter A: ":A 110 INPUT PROMPT "Enter B: ":B 120 IF A
or
<lang IS-BASIC>100 INPUT PROMPT "Enter A: ":A 110 INPUT PROMPT "Enter B: ":B 120 SELECT CASE A 130 CASE IS
Tiny BASIC
<lang tinybasic>PRINT "Enter a number" INPUT A PRINT "Enter another number" INPUT B IF A B THEN PRINT A," is greater than ",B IF A = B THEN PRINT A," is equal to ",B</lang>
Batch File
<lang dos>@echo off setlocal EnableDelayedExpansion set /p a="A: " set /p b="B: " if %a% LSS %b% (
echo %a% is less than %b%
) else ( if %a% GTR %b% (
echo %a% is greater than %b%
) else ( if %a% EQU %b% (
echo %a% is equal to %b%
)))</lang>

Output:
C:\Test>IntegerComparison.bat A: 5 B: 3 5 is greater than 3
BBC BASIC
<lang bbcbasic> INPUT "Enter two numbers separated by a comma: " a, b
CASE TRUE OF WHEN a < b: PRINT ;a " is less than "; b WHEN a = b: PRINT ;a " is equal to "; b WHEN a > b: PRINT ;a " is greater than "; b ENDCASE</lang>
bc
Works with: GNU bc
(POSIX bc doesn't have I/O functions/statements (i.e. read and print) but the rest of the code would work.) <lang bc>a = read() b = read() if (a < b) print "a is smaller than b\n" if (a > b) print "a is greater than b\n" if (a == b) print "a is equal to b\n" quit</lang>
Befunge
Befunge only has the greater-than operator (backtick `). The branch commands (underline _ and pipe |) test for zero.
<lang befunge>v v ">" $< >&&"=A",,\:."=B ",,,\: .55+,-:0`|
v "<" _v#< @,+55,," B",,,"A " < "=" <</lang>
Bracmat
<lang bracmat> get$:?A & get$:?B & (!A:!B&out$"A equals B"|) & (!A:<!B&out$"A is less than B"|) & (!A:>!B&out$"A is greater than B"|);</lang>
Brat
<lang brat>first = ask("First integer: ").to_i second = ask("Second integer: ").to_i
when { first > second } { p "#{first} is greater than #{second}" }
{ first < second } { p "#{first} is less than #{second}" } { first == second } { p "#{first} is equal to #{second}" }</lang>
Burlesque
<lang burlesque> blsq ) "5 6"ps^pcm+.{"The first one is less than the second one""They are both equal""The second one is less than the first one"}\/!!sh The first one is less than the second one blsq ) "6 6"ps^pcm+.{"The first one is less than the second one""They are both equal""The second one is less than the first one"}\/!!sh They are both equal blsq ) "6 5"ps^pcm+.{"The first one is less than the second one""They are both equal""The second one is less than the first one"}\/!!sh The second one is less than the first one </lang>
C
<lang c>#include <stdio.h>
int main() {
int a, b; scanf("%d %d", &a, &b);
if (a < b) printf("%d is less than %d\n", a, b);
if (a == b) printf("%d is equal to %d\n", a, b);
if (a > b) printf("%d is greater than %d\n", a, b);
return 0;
}</lang>
C#
<lang csharp>using System;
class Program {
static void Main() { int a = int.Parse(Console.ReadLine()); int b = int.Parse(Console.ReadLine()); if (a < b) Console.WriteLine("{0} is less than {1}", a, b); if (a == b) Console.WriteLine("{0} equals {1}", a, b); if (a > b) Console.WriteLine("{0} is greater than {1}", a, b); }
}</lang>
C++
<lang cpp>#include <iostream>
int main() {
int a, b;
if (!(std::cin >> a >> b)) { std::cerr << "could not read the numbers\n"; return 1; }
// test for less-than if (a < b) std::cout << a << " is less than " < b) std::cout << a << " is greater than " <
ChucK
<lang> fun void intComparison (int one, int two) {
if(one < two) <<< one, " is less than ", two >>>; if(one == two) <<< one, " is equal than ", two >>>; if(one > two) <<< one, " is greater than ", two >>>;
} // uncomment next line and change values to test // intComparison (2,4); </lang>
Clean
<lang clean>import StdEnv
compare a b
| a b = "A is more than B" | a == b = "A equals B"
Start world
# (console, world) = stdio world (_, a, console) = freadi console (_, b, console) = freadi console = compare a b</lang>
Clipper
<lang clipper> Function Compare(a, b)
IF a b ? "A is more than B" ELSE ? "A equals B" ENDIF Return Nil
</lang>
Clojure
Creates an infinite sequence of calls to "read an object from the user", and assigns the first two elements to a and b, without evaluating the rest. It evaluates the when/println body three times, each time with op and string bound to their corresponding entries in the list of three operator/string pairs. Note that this does no validation on input: if the user inputs a string then an exception will be thrown. <lang Clojure>(let [[a b] (repeatedly read)]
(doseq [[op string] [[< "less than"] [> "greater than"] [= "equal to"]]] (when (op a b) (println (str a " is " string " " b)))))</lang>
CMake
<lang cmake># Define A and B as integers. For example:
cmake -DA=3 -DB=5 -P compare.cmake
The comparisons can take variable names, or they can take numbers.

So these act all the same:

A LESS B

${A} LESS ${B}

A LESS ${B}

${A} LESS B
if(A LESS B)
message(STATUS "${A} is less than ${B}")
endif() if(A EQUAL B)
message(STATUS "${A} is equal to ${B}")
endif() if(A GREATER B)
message(STATUS "${A} is greater than ${B}")
endif()</lang>
COBOL
Works with: OpenCOBOL
<lang cobol> IDENTIFICATION DIVISION.
PROGRAM-ID. Int-Compare.
DATA DIVISION. WORKING-STORAGE SECTION. 01 A PIC 9(10). 01 B PIC 9(10).
PROCEDURE DIVISION. DISPLAY "First number: " WITH NO ADVANCING ACCEPT A DISPLAY "Second number: " WITH NO ADVANCING ACCEPT B
*> Note: Longer verbal forms may be used instead of symbols

*> e.g. 'IS GREATER THAN' instead '<'
IF A B DISPLAY A " is larger than " B END-IF.
GOBACK .</lang>
ColdFusion
Less than: LT

Less than or equal to: LTE

Greater than: GT

Greater than or equal to: GTE

Equal to: EQ

Not equal to: NEQ
In CFML
<lang cfm><cffunction name="CompareInteger">
<cfargument name="Integer1" type="numeric"> <cfargument name="Integer2" type="numeric"> <cfset VARIABLES.Result = "" > <cfif ARGUMENTS.Integer1 LT ARGUMENTS.Integer2 >
<cfset VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is less than " & ARGUMENTS.Integer2 & ")" >
</cfif> <cfif ARGUMENTS.Integer1 LTE ARGUMENTS.Integer2 >
<cfset VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is less than or equal to " & ARGUMENTS.Integer2 & ")" >
</cfif> <cfif ARGUMENTS.Integer1 GT ARGUMENTS.Integer2 >
<cfset VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is greater than " & ARGUMENTS.Integer2 & ")" >
</cfif> <cfif ARGUMENTS.Integer1 GTE ARGUMENTS.Integer2 >
<cfset VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is greater than or equal to " & ARGUMENTS.Integer2 & ")" >
</cfif> <cfif ARGUMENTS.Integer1 EQ ARGUMENTS.Integer2 >
<cfset VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is equal to " & ARGUMENTS.Integer2 & ")" >
</cfif> <cfif ARGUMENTS.Integer1 NEQ ARGUMENTS.Integer2 >
<cfset VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is not equal to " & ARGUMENTS.Integer2 & ")" >
</cfif> <cfreturn VARIABLES.Result >
</cffunction></lang>
In CFScript
<lang cfm><cfscript> function CompareInteger( Integer1, Integer2 ) { VARIABLES.Result = ""; if ( ARGUMENTS.Integer1 LT ARGUMENTS.Integer2 ) { VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is less than " & ARGUMENTS.Integer2 & ")"; } if ( ARGUMENTS.Integer1 LTE ARGUMENTS.Integer2 ) { VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is less than or equal to " & ARGUMENTS.Integer2 & ")"; } if ( ARGUMENTS.Integer1 GT ARGUMENTS.Integer2 ) { VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is greater than " & ARGUMENTS.Integer2 & ")"; } if ( ARGUMENTS.Integer1 GTE ARGUMENTS.Integer2 ) { VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is greater than or equal to " & ARGUMENTS.Integer2 & ")"; } if ( ARGUMENTS.Integer1 EQ ARGUMENTS.Integer2 ) { VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is equal to " & ARGUMENTS.Integer2 & ")"; } if ( ARGUMENTS.Integer1 NEQ ARGUMENTS.Integer2 ) { VARIABLES.Result = VARIABLES.Result & "(" & ARGUMENTS.Integer1 & " is not equal to " & ARGUMENTS.Integer2 & ")"; } return VARIABLES.Result; } </cfscript></lang>
Common Lisp
You can type this directly into a REPL:
<lang lisp>(let ((a (read *standard-input*))
(b (read *standard-input*))) (cond ((not (numberp a)) (format t "~A is not a number." a)) ((not (numberp b)) (format t "~A is not a number." b)) ((< a b) (format t "~A is less than ~A." a b)) ((> a b) (format t "~A is greater than ~A." a b)) ((= a b) (format t "~A is equal to ~A." a b)) (t (format t "Cannot determine relevance between ~A and ~B!" a b)))))</lang>
After hitting enter, the REPL is expecting the two numbers right away. You can enter the two numbers, and the result will print immediately. Alternatively, you can wrap this code in a function definition:
<lang lisp>(defun compare-integers ()
(let ((a (read *standard-input*)) (b (read *standard-input*))) (cond ((not (numberp a)) (format t "~A is not a number." a)) ((not (numberp b)) (format t "~A is not a number." b)) ((< a b) (format t "~A is less than ~A." a b)) ((> a b) (format t "~A is greater than ~A." a b)) ((= a b) (format t "~A is equal to ~A." a b)) (t (format t "Cannot determine relevance between ~A and ~B!" a b)))))</lang>
Then, execute the function for better control:
(compare-integers)
Computer/zero Assembly
The only conditional instruction we have is BRZ (branch on accumulator zero). We can therefore test for equality very quickly. To test for "greater than" or "less than", however, requires a loop.
If you run this program, it will halt awaiting user input. Toggle in the value of $x$ , then click Enter, then toggle in $y$ , then Enter, and then Run. $x$ and $y$ must both be unsigned eight-bit integers. The computer will halt with the accumulator storing 1 if $x$ > $y$ , 0 if $x$ = $y$ , or -1 if $x$ < $y$ ; and it will be ready for a fresh pair of integers to be entered. <lang czasm>start: STP ; get input
x: NOP y: NOP
LDA x SUB y BRZ start ; x=y, A=0
loop: LDA x
SUB one BRZ x<y STA x
LDA y SUB one BRZ x>y STA y
JMP loop
x>y: LDA one ; A := 1
JMP start
x<y: SUB one ; A := 0-1
JMP start
one: 1</lang>
D
<lang d>void main() {
import std.stdio, std.conv, std.string;
int a = 10, b = 20; try { a = readln.strip.to!int; b = readln.strip.to!int; } catch (StdioException) {}
if (a < b) writeln(a, " is less than ", b);
if (a == b) writeln(a, " is equal to ", b);
if (a > b) writeln(a, " is greater than ", b);
}</lang>

Output:
10 is less than 20
Dc
<lang dc>[Use _ (underscore) as negative sign for numbers.]P []pP [Enter two numbers to compare: ]P ? sbsa greater thansp lb la >p [ [less than]]sp lb la 

Output:
44 is greater than 3
DCL
<lang DCL>$ inquire a "Please provide an integer" $ inquire b "Please provide another" $ if a .lt. b then $ write sys$output "the first integer is less" $ if a .eq. b then $ write sys$output "the integers have the same value" $ if a .gt. b then $ write sys$output "the first integer is greater"</lang>

Output:
$ @integer_comparison Please provide an integer: 0 Please provide another: -3 the first integer is greater $ @integer_comparison Please provide an integer: -2000 Please provide another: 12355 the first integer is less $ @integer_comparison Please provide an integer: 314 Please provide another: 314 the integers have the same value
Delphi
Slightly different than the Pascal example
<lang Delphi>program IntegerCompare;
{$APPTYPE CONSOLE}
var
a, b: Integer;
begin
Readln(a, b); if a b then Writeln(a, ' is greater than ', b);
end.</lang>
Dyalect
Translation of: Clipper
<lang Dyalect>func compare(a, b) {
if a b { "A is more than B" } else { "A equals B" }
}</lang>
E
<lang e>def compare(a :int, b :int) {
println(if (a < b) { `$a < $b` } \ else if (a <=> b) { `$a = $b` } \ else if (a > b) { `$a > $b` } \ else { `You're calling that an integer?` })
}</lang>
EasyLang
<lang>a = number input b = number input if a < b
print "less"
. if a = b
print "equal"
. if a > b
print "greater"
.</lang>
ECL
<lang ECL> CompareThem(INTEGER A,INTEGER B) := FUNCTION
Result := A <=> B; STRING ResultText := CASE (Result,1 => 'is greater than', 0 => 'is equal to','is less than'); RETURN A + ' ' + TRIM(ResultText) + ' ' + B;
END;
CompareThem(1,2); //Shows "1 is less than 2" CompareThem(2,2); //Shows "2 is equal to 2" CompareThem(2,1); //Shows "2 is greater than 1" </lang>
EDSAC order code
The EDSAC offers two conditional branching orders, E (branch if the accumulator >= 0) and G (branch if the accumulator < 0). Testing for equality thus requires two operations. <lang edsac>[ Integer comparison
================== A program for the EDSAC Illustrates the use of the E (branch on accumulator sign bit clear) and G (branch on accumulator sign bit set) orders The integers to be tested, x and y, should be stored in addresses 13@ and 14@ Output: the program causes the machine to print '+' if x > y, '=' if x = y, '-' if x < y. Works with Initial Orders 2 ]
T56K [ load point ] GK [ base address ] O15@ [ figure shift ] A13@ [ a = x ] S14@ [ a -= y ] G10@ [ if a<0 go to 10 ] S12@ [ a -= 1 ] E8@ [ if a>=0 go to 8 ] O17@ [ write '=' ] ZF [ halt ]
[ 8 ] O16@ [ write '+' ]
ZF [ halt ]
[ 10 ] O18@ [ write '-' ]
ZF [ halt ]
[ 12 ] P0D [ const: 1 ]
[ 13 ] P16D [ x = 37 ] [ 14 ] P14F [ y = 28 ]
[ 15 ] #F [ figure shift ] [ 16 ] ZF [ + character ] [ 17 ] VF [ = character ] [ 18 ] AF [ - character ]
EZPF [ begin execution ]</lang>
Efene
since if does pattern matching the else is required to avoid the application from crashing
<lang efene>compare = fn (A, B) {
if A == B { io.format("~p equals ~p~n", [A, B]) } else { ok }
if A B { io.format("~p is greater than ~p~n", [A, B]) } else { ok }
}
@public run = fn () {
compare(5, 5) compare(6, 5) compare(4, 5)
} </lang>
Eiffel
<lang Eiffel>class APPLICATION inherit ARGUMENTS create make
feature {NONE} -- Initialization
make local i, j: INTEGER_32 do io.read_integer_32 i := io.last_integer_32
io.read_integer_32 j := io.last_integer_32
if i < j then print("first is less than second%N") end if i = j then print("first is equal to the second%N") end if i > j then print("first is greater than second%N") end end end</lang>
Elena
ELENA 4.x: <lang elena>import extensions;
public program() {
var a := console.readLine().toInt(); var b := console.readLine().toInt(); if (a < b) { console.printLine(a," is less than ",b) }; if (a == b) { console.printLine(a," equals ",b) }; if (a > b) { console.printLine(a," is greater than ",b) }
}</lang>
Elixir
<lang ELixir>{a,_} = IO.gets("Enter your first integer: ") |> Integer.parse {b,_} = IO.gets("Enter your second integer: ") |> Integer.parse
cond do
a IO.puts "#{a} is less than #{b}" a > b -> IO.puts "#{a} is greater than #{b}" a == b -> IO.puts "#{a} is equal to #{b}"
end</lang>
Emacs Lisp
<lang Emacs Lisp> (progn
(if (< 1 2) (insert "True\n") (insert "False\n") ) (if (= 1 2) (insert "True\n") (insert "False\n") ) (if (= 1 1) (insert "True\n") (insert "False\n") ) (if (> 1 2) (insert "True\n") (insert "False\n") ) (if (<= 1 2) (insert "True\n") (insert "False\n") ) (if (>= 1 2) (insert "True\n") (insert "False\n") )) </lang>
Output:
True False True False True False
… or …
<lang Emacs Lisp> (defun integer-comparison (a b)
"Compare A to B and print the outcome in the message buffer." (interactive "nFirst integer ⇒\nnSecond integer ⇒") (cond ((< a b) (message "%d is less than %d." a b)) ((> a b) (message "%d is greater than %d." a b)) ((= a b) (message "%d is equal to %d." a b))))
</lang>
Invoke from within Emacs Lisp (or eg, with M-:) as <lang Emacs Lisp>(integer-comparison 12 42)</lang> Or, use M-x integer-comparison <RET> and you'll be prompted for the two numbers.
Erlang
<lang erlang> main() ->
{ok, [N]} = io:fread("First integer: ", "~d"), {ok, [M]} = io:fread("First integer: ", "~d"), if N < M -> io:format("~b is less than ~b~n",[N,M]); N > M -> io:format("~b is greater than ~b~n",[N,M]); N == M -> io:format("~b is equal to ~b~n",[N,M]) end. if N =< M -> io:format("~b is less than or equal to ~b~n",[N,M]); N >= M -> io:format("~b is greater than or equal to ~b~n",[N,M]) end.
</lang>
Euphoria
<lang Euphoria>include get.e
integer a,b a = floor(prompt_number("a = ",{})) b = floor(prompt_number("b = ",{}))
puts(1,"a is ") if a b then
puts(1,"grater then")
end if puts(1," b")</lang>
Excel
Let's say you type in the values in cells A1 and B1, in C1, type in the following in a MS Excel 2010 sheet:
<lang excel> =IF($A1>$B1;concatenate($A1;" is greater than ";$B1);IF($A1<$B1;concatenate($A1;" is smaller than ";$B1);concatenate($A1;" is equal to ";$B1))) </lang>
In a Google Docs spreadsheet, that becomes :
<lang excel> =IF($A1>$B1,concatenate($A1," is greater than ",$B1),IF($A1<$B1,concatenate($A1," is smaller than ",$B1),concatenate($A1," is equal to ",$B1))) </lang>
F#
<lang fsharp>let compare_ints a b =
let r = match a with | x when x -1, printfn "%d is less than %d" x b | x when x = b -> 0, printfn "%d is equal to %d" x b | x when x > b -> 1, printfn "%d is greater than %d" x b | x -> 0, printf "default condition (not reached)" fst r</lang>
Factor
<lang factor>: example ( -- ) readln readln [ string>number ] bi@ [ > [ "A > B" print ] when ] [ < [ "A < B" print ] when ] [ = [ "A = B" print ] when ] 2tri ; </lang>
FALSE
Only equals and greater than are available. <lang false>^^ \$@$@$@$@\ >[\$," is greater than "\$,]? \>[\$," is less than "\$,]? =["characters are equal"]?</lang>
Fantom
Uses Env.cur to access stdin and stdout.
<lang fantom>class Main {
public static Void main () { try { Env.cur.out.print ("Enter number 1: ").flush num1 := Env.cur.in.readLine.toInt Env.cur.out.print ("Enter number 2: ").flush num2 := Env.cur.in.readLine.toInt
if (num1 < num2) echo ("$num1 is smaller than $num2") else if (num1 == num2) echo ("$num1 is equal to $num2") else if (num1 > num2) echo ("$num1 is greater than $num2") } catch (Err e) echo ("You must enter two integers") }
} </lang>
Fish
This example assumes you pre-populate the stack with the two integers. <lang Fish>l2=?vv ~< v o< v <>l?^"Please pre-populate the stack with the two integers."ar>l?^; \$:@@:@)?v v ;oanv!!!?<
>$n" is greater than "{r>ol1=^
/ < \$:@@:@=?v v ;oanv!!!?<
>$n" is equal to "{r>ol1=^
/ < \$:@@:@(?v v ;oanv!!!?<
>$n" is smaller than "{r>ol1=^ > v
/oo". "nooooo" and "n$< v o< >"They're not equal, not greater than and not smaller than eachother... strange."ar>l?^;</lang>
The last three lines aren't really needed, because it will never become true :P but I included them to show a way to do some error checking.
Forth
To keep the example simple, the word takes the two numbers from the stack. <lang forth>: compare-integers ( a b -- )
2dup < if ." a is less than b" then 2dup > if ." a is greater than b" then = if ." a is equal to b" then ;</lang>
Fortran
In ALL Fortran versions (including original 1950's era) you could use an "arithmetic IF" statement to compare using subtraction: <lang fortran>program arithif integer a, b
c fortran 77 I/O statements, for simplicity read(*,*) a, b
if ( a - b ) 10, 20, 30 10 write(*,*) a, ' is less than ', b
goto 40
20 write(*,*) a, ' is equal to ', b
goto 40
30 write(*,*) a, ' is greater than ', b 40 continue
end</lang>
In ANSI FORTRAN 66 or later you could use relational operators (.lt., .gt., .eq., etc.) and unstructured IF statements: <lang fortran>program compare integer a, b c fortran 77 I/O statements, for simplicity read(*,*) a, b
if (a .lt. b) write(*, *) a, ' is less than ', b if (a .eq. b) write(*, *) a, ' is equal to ', b if (a .gt. b) write(*, *) a, ' is greater than ', b end</lang>
In ANSI FORTRAN 77 or later you can use relational operators and structured IF statements: <lang fortran>program compare integer a, b read(*,*) a, b
if (a .lt. b) then
write(*, *) a, ' is less than ', b
else if (a .eq. b) then
write(*, *) a, ' is equal to ', b
else if (a .gt. b) then
write(*, *) a, ' is greater than ', b
end if
end</lang>
In ISO Fortran 90 or later you can use symbolic relational operators (<, >, ==, etc.) <lang fortran>program compare integer :: a, b read(*,*) a, b
if (a < b) then
write(*, *) a, ' is less than ', b
else if (a == b) then
write(*, *) a, ' is equal to ', b
else if (a > b) then
write(*, *) a, ' is greater than ', b
end if
end program compare</lang>
FreeBASIC
<lang freebasic>' FB 1.05.0 Win64
Dim As Integer x, y Input "Please enter two integers, separated by a comma : ", x , y
If x < y Then
Print x; " is less than "; y
End If
If x = y Then
Print x; " is equal to "; y
End If
If x > y Then
Print x; " is greater than "; y
End If
Print Print "Press any key to exit" Sleep</lang>
friendly interactive shell
<lang fishshell>read a read b
if test $a -gt $b
echo Greater
else if test $a -lt $b
echo Less
else if test $a -eq $b
echo Equal
end</lang>
Frink
All integers in Frink can be arbitrarily large.
<lang frink> [a,b] = eval[input["Enter numbers",["a","b"]]] if ab
println["$a > $b"]
</lang>
FunL
<lang funl>import console.readInt
a = readInt() b = readInt()
val (_, c) = [((<), 'less than'), ((==), 'equal to'), ((>), 'greater than')].find( (compare, _) -> compare(a, b) ).get()
println( "$a is $c $b." )</lang>
FutureBasic
Note: Strictly speaking, it's preferable to use "==" when comparing integers as seen in this example. While the "=" sign will work as a comparison in most cases, technically it should be used for assignment, i.e. a = 3 when a is assigned the value of 3, as contrasted with a == 3, where the value of a is being compared with 3. FB will flag a warning when "==" is used to compare two single, doubles or floats since comparing real numbers can be inaccurate. <lang futurebasic> include "ConsoleWindow"
dim as long n1, n2
input "Enter two numbers (separated by a comma) to compare: "; n1, n2
if n1 < n2 then print : print n1; " is less than"; n2 if n1 > n2 then print : print n1; " is greater than"; n2 if n1 == n2 then print : print n1; " equals"; n2 </lang>
Gambas
<lang gambas>Public Sub Form_Open() Dim sIn As String = InputBox("Enter 2 integers seperated by a comma") Dim iFirst, iSecond As Integer
iFirst = Val(Split(sIn)[0]) iSecond = Val(Split(sIn)[1])
If iFirst < iSecond Then Print iFirst & " is smaller than " & iSecond & gb.NewLine If iFirst > iSecond Then Print iFirst & " is greater than " & iSecond & gb.NewLine If iFirst = iSecond Then Print iFirst & " is equal to " & iSecond
End</lang> Output:
21 is greater than 18
Go
<lang go>package main
import ( "fmt" "log" )
func main() { var n1, n2 int fmt.Print("enter number: ") if _, err := fmt.Scan(&n1); err != nil { log.Fatal(err) } fmt.Print("enter number: ") if _, err := fmt.Scan(&n2); err != nil { log.Fatal(err) } switch { case n1 < n2: fmt.Println(n1, "less than", n2) case n1 == n2: fmt.Println(n1, "equal to", n2) case n1 > n2: fmt.Println(n1, "greater than", n2) } }</lang>
Groovy
Relational Operators
<lang groovy>def comparison = { a, b ->
println "a ? b = ${a} ? ${b} = a ${a b ? '>' : a == b ? '==' : '?'} b"
}</lang>
Program: <lang groovy>comparison(2000,3) comparison(2000,300000) comparison(2000,2000)</lang>

Output:
a ? b = 2000 ? 3 = a > b a ? b = 2000 ? 300000 = a final rels = [ (-1) : '<', 0 : '==', 1 : '>' ].asImmutable() def comparisonSpaceship = { a, b ->
println "a ? b = ${a} ? ${b} = a ${rels[a <=> b]} b"
}</lang>
Program: <lang groovy>comparison(2000,3) comparison(2000,300000) comparison(2000,2000)</lang>

Output:
a ? b = 2000 ? 3 = a > b a ? b = 2000 ? 300000 = a PROCEDURE Compare( a, b )
IF a b ? "A is more than B" ELSE ? "A equals B" ENDIF
RETURN</lang>
Haskell
<lang haskell>myCompare :: Integer -> Integer -> String myCompare a b
| a b = "A is greater than B" | a == b = "A equals B"
main = do
a <- readLn b <- readLn putStrLn $ myCompare a b</lang>
However, the more idiomatic and less error-prone way to do it in Haskell would be to use a compare function that returns type Ordering, which is either LT, GT, or EQ: <lang haskell>myCompare a b = case compare a b of
LT -> "A is less than B" GT -> "A is greater than B" EQ -> "A equals B"</lang>
hexiscript
<lang hexiscript>let a scan int let b scan int
if a b
println a + " is greater than " + b
endif
if a = b
println a + " is equal to " + b
endif</lang>
HicEst
<lang hicest>DLG(NameEdit=a, NameEdit=b, Button='OK')
IF (a < b) THEN
WRITE(Messagebox) a, ' is less than ', b ELSEIF(a == b) THEN WRITE(Messagebox) a, ' is equal to ', b ELSEIF(a > b) THEN WRITE(Messagebox) a, ' is greater than ', b
ENDIF</lang>
HolyC
<lang holyc>I64 *a, *b; a = Str2I64(GetStr("Enter your first number: ")); b = Str2I64(GetStr("Enter your second number: "));
if (a < b)
Print("%d is less than %d\n", a, b);
if (a == b)
Print("%d is equal to %d\n", a, b);
if (a > b)
Print("%d is greater than %d\n", a, b);</lang>
Hy
<lang clojure>(def a (int (input "Enter value of a: "))) (def b (int (input "Enter value of b: ")))
(print (cond [(< a b) "a is less than b"]
[(> a b) "a is greater than b"] [(= a b) "a is equal to b"]))</lang>
i
<lang i>software { a = number(read(' ')) b = number(read())
if a b print(a, " is greater than ", b) end }</lang>
Icon and Unicon
<lang Icon>procedure main()
until integer(a) do {
writes("Enter the first integer a := ") write(a := read()) }
until integer(b) do {
writes("Enter the second integer b := ") write(b := read()) }
writes("Then ") write(a," < ", a < b) write(a," = ", a = b) write(a," > ", a > b) end</lang>

Output:
#int_compare.exe Enter the first integer a := 7 Enter the second integer b := 7 Then 7 = 7
J
Comparison is accomplished by the verb compare, which provides logical-numeric output.
Text elaborating the output of compare is provided by cti: <lang j>compare=: < , = , >
cti=: dyad define
select =. ;@# English =. ' is less than ';' is equal to ';' is greater than ' x (":@[, (compare select English"_), ":@]) y
)</lang> Examples of use: <lang j> 4 compare 4 0 1 0
4 cti 3
4 is greater than 3</lang>
Java
<lang java>import java.io.*;
public class compInt {
public static void main(String[] args) { try { BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
int nbr1 = Integer.parseInt(in.readLine()); int nbr2 = Integer.parseInt(in.readLine());
if(nbr1<nbr2) System.out.println(nbr1 + " is less than " + nbr2);
if(nbr1>nbr2) System.out.println(nbr1 + " is greater than " + nbr2);
if(nbr1==nbr2) System.out.println(nbr1 + " is equal to " + nbr2); } catch(IOException e) { } }
}</lang>
JavaScript
<lang javascript> // Using type coercion function compare(a, b) {
if (a==b) print(a + " equals " + b); if (a < b) print(a + " is less than " + b); if (a > b) print(a + " is greater than " + b);
}
// Without using type coercion and using standards // Written for browsers // assumption of a and b are both integers if typeof test passes function compare (a, b) {
if (typeof a === typeof b) { if (a === b) { document.writeln(a + " equals " + b); } if (a < b) { document.writeln(a + " is less than " + b); } if (a > b) { document.writeln(a + " is greater than " + b); } } else { // "1" and 1 are an example of this as the first is type string and the second is type number print(a + "{" + (typeof a) + "} and " + b + "{" + (typeof b) + "} are not of the same type and cannot be compared."); }
} </lang>
Joy
<lang joy>#!/usr/local/bin/joy.exe DEFINE prompt == "Please enter a number and <Enter>: " putchars; newline == '\n putch; putln == put newline.
stdin # F prompt fgets # S F 10 strtol # A F swap # F A dupd # F A A prompt fgets # S F A A 10 strtol # B F A A popd # B A A dup # B B A A rollup # B A B A [<] [swap put "is less than " putchars putln] [] ifte [=] [swap put "is equal to " putchars putln] [] ifte [>] [swap put "is greater than " putchars putln] [] ifte # B A quit.</lang>
jq
<lang jq># compare/0 compares the first two items if they are numbers,
otherwise an "uncomparable" message is emitted.
def compare:
def english: if .[0] < .[1] then "less than" elif .[0] == .[1] then "equal to" else "greater than" end; if (.[0]|type) == "number" and (.[1]|type) == "number" then "\(.[0]) is \(english) \(.[1])" else "\(.[0]) is uncomparable to \(.[1])" end ;
compare</lang>
Examples; <lang jq> $ jq -s -r -f Integer_comparison.jq 1 2 1 is less than 2
$ jq -s -r -f Integer_comparison.jq 1 "a" 1 is uncomparable to a </lang>
Julia
<lang Julia>function compare()
int1 = readline(stdin) int2 = readline(stdin) print(int1, " is ", int1 < int2 ? "less than " : int1 == int2 ? "equal to " : int1 > int2 ? "greater than " : "uncomparable to", int2)
end

</lang>

Output:
julia> compare() 3 5 3 is less than 5
Kotlin
<lang scala>fun main(args: Array<String>) {
val n1 = readLine()!!.toLong() val n2 = readLine()!!.toLong() println(when { n1 < n2 -> "$n1 is less than $n2" n1 > n2 -> "$n1 is greater than $n2" n1 == n2 -> "$n1 is equal to $n2" else -> "" })
}</lang>
Lambdatalk
<lang Scheme> {def compare
{lambda {:a :b} {if {< :a :b} then :a is lesser than :b else {if {> :a :b} then :a is greater than :b else :a is equal to :b}}}}
{compare 1 2} -> 1 is lesser than 2
{compare 2 1} -> 2 is greater than 1
{compare 1 1} -> 1 is equal to 1 </lang>
Lasso
<lang Lasso>local( number1 = integer(web_request -> param('number1')), number2 = integer(web_request -> param('number2')) )
number1 < #number2 ? 'Number 1 is less than Number 2' | 'Number 1 is not less than Number 2'
'
'
number1 == #number2 ? 'Number 1 is the same as Number 2' | 'Number 1 is not the same as Number 2'
'
'
number1 > #number2 ? 'Number 1 is greater than Number 2' | 'Number 1 is not greater than Number 2'</lang>

Output:
// with input of 2 & 2 Number 1 is not less than Number 2 Number 1 is the same as Number 2 Number 1 is not greater than Number 2
Liberty BASIC
Verbose version: <lang lb>input "Enter an integer for a. ";a input "Enter an integer for b. ";b
'a=int(a):b=int(b) ??? print "Conditional evaluation." if ab then print "a>b " ; a ; " > " ; b
print "Select case evaluation." select case
case (a<b) print "ab) print "a>b " ; a ; " > " ; b
end select
</lang>
Concise: <lang lb>input "Enter an integer for a. ";a input "Enter an integer for b. ";b
for i = 1 to 3
op$=word$("< = >", i) if eval("a"+op$+"b") then print "a"+op$+"b " ; a;" ";op$;" ";b
next </lang>
LIL
<lang tcl>print "Enter two numbers separated by space" set rc [readline] set a [index $rc 0] set b [index $rc 1]
if {$a < $b} {print "$a is less than $b"} if {$a == $b} {print "$a is equal to $b"} if {$a > $b} {print "$a is greater than $b"}</lang>
Lingo
Lingo programs are normally not run in the console, so interactive user input is handled via GUI. To not clutter this page with GUI creation code, here only the comparison part of the task: <lang lingo>on compare (a, b)
if a b then put a&" is greater than "&b
end</lang>
LiveCode
<lang LiveCode>ask question "Enter 2 numbers (comma separated)" with empty titled "Enter 2 numbers" if it is not empty then
put item 1 of it into num1 put item 2 of it into num2 if isnumber(num1) and isnumber(num2) then if num1 < num2 then answer num1 && "is less than" && num2 if num1 is num2 then answer num1 && "is equal to" && num2 if num1 > num2 then answer num1 && "is greater than" && num2
-- alternative is to use switch case construct switch case (num1 < num2) answer num1 && "is less! than" && num2; break case (num1 > num2) answer num1 && "is greater! than" && num2; break case (num1 = num2) answer num1 && "equal! to" && num2 end switch end if
end if</lang>
LLVM
Note, this targets the mingw-32 ABI.
Library: cstdlib
<lang llvm>; ModuleID = 'test.o'
e means little endian

p

{ pointer size : pointer abi : preferred alignment for pointers }

i same for integers

v is for vectors

f for floats

a for aggregate types

s for stack objects

n

{size:size:size...}, best integer sizes
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
this was compiled with mingw32; thus it must be linked to a compatible c library
target triple = "i386-mingw32"
Declare string constants
@.str = private constant [6 x i8] c"%d %d\00", align 1 ; <[6 x i8]*> [#uses=1] @.str1 = private constant [20 x i8] c"%d is less than %d\0A\00", align 1 ; <[20 x i8]*> [#uses=1] @.str2 = private constant [19 x i8] c"%d is equal to %d\0A\00", align 1 ; <[19 x i8]*> [#uses=1] @.str3 = private constant [23 x i8] c"%d is greater than %d\0A\00", align 1 ; <[23 x i8]*> [#uses=1]
Declare main function (entry point). It does not throw any exceptions, and returns an integer of size 32.
define i32 @main() nounwind {
Entry block
entry:
;Allocate the first integer, register %a will point to that %a = alloca i32, align 4 ; <i32*> [#uses=4] ;Allocate the second integer, register %b will point to that %b = alloca i32, align 4 ; <i32*> [#uses=4] ;Use the C standard library function scanf() to obtain input from users. ;Scanf takes a pointer to the string constant @.str, "%d %d\00", which will take two integers from the user. ;getelementptr basically does pointer math, in this case, no ptr math is required (we point to the beginning of @.str). ;Pass %a and %b, which are pointers to integers allocated previously. ;Scanf will store the two integers into the memory locations represented by %a and %b %0 = call i32 (i8*, ...)* @scanf(i8* noalias getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 0), i32* %a, i32* %b) nounwind ; <i32> [#uses=0] ;Load the integer pointed to by %a and %b into registers %1 and %2 respectively %1 = load i32* %a, align 4 ; <i32> [#uses=3] %2 = load i32* %b, align 4 ; <i32> [#uses=3] ;Boolean register which represents if %1 is less than to %2 %3 = icmp slt i32 %1, %2 ; <i1> [#uses=1] ;If %1 is less than to %2, goto branch %bb, otherwise, goto %bb1 br i1 %3, label %bb, label %bb1
If integer %1 is less than %2
bb: ; preds = %entry
;Use the C standard library function printf to output information to users ;Print @.str1, "%d is less than %d\0A\00" ;Additionally, pass the integers %1 and %2 to printf, to be formatted into the string %4 = call i32 (i8*, ...)* @printf(i8* noalias getelementptr inbounds ([20 x i8]* @.str1, i32 0, i32 0), i32 %1, i32 %2) nounwind ; <i32> [#uses=0] ;Continue on to %bb1, to check for equality of the two integers br label %bb1
Continue checking if the integers are equal
bb1: ; preds = %bb, %entry
;Boolean register which represents if %1 is equal to %2 %5 = icmp eq i32 %1, %2 ; <i1> [#uses=1] ;If %1 is equal to %2, goto branch %bb2, otherwise, goto %bb3 br i1 %5, label %bb2, label %bb3
If integer %1 is equal to %2
bb2: ; preds = %bb1
;Use the C standard library function printf to output information to users ;Print @.str2 "%d is equal to %d\0A\00" ;Additionally, pass the integers %1 and %2 to printf, to be formatted into the string %6 = call i32 (i8*, ...)* @printf(i8* noalias getelementptr inbounds ([19 x i8]* @.str2, i32 0, i32 0), i32 %1, i32 %2) nounwind ; <i32> [#uses=0] ;Continue on to %bb3, to check if %1 is greater than %2 br label %bb3
Continue checking if %1 is greater than %2
bb3: ; preds = %bb2, %bb1
;Boolean register which represents if %1 is greater than %2 %7 = icmp sgt i32 %1, %2 ; <i1> [#uses=1] ;If %1 is greather than %2, goto branch %bb4, otherwise, goto %bb5 br i1 %7, label %bb4, label %bb5
If integer %1 is greater than %2
bb4: ; preds = %bb3
;Use the C standard library function printf to output information to users ;Print @.str3 "%d is greater than %d\0A\00" ;Additionally, pass the integers %1 and %2 to printf, to be formatted into the string %8 = call i32 (i8*, ...)* @printf(i8* noalias getelementptr inbounds ([23 x i8]* @.str3, i32 0, i32 0), i32 %1, i32 %2) nounwind ; <i32> [#uses=0] ;Return 0 for the main function, indicating program executed successfully ret i32 0
bb5: ; preds = %bb3
;Return 0 for the main function, indicating program executed successfully ret i32 0
}
Declare external fuctions
declare i32 @scanf(i8* nocapture, ...) nounwind
declare i32 @printf(i8* nocapture, ...) nounwind </lang>
Logo
<lang logo>to compare :a :b
if :a = :b [(print :a [equals] :b)] if :a < :b [(print :a [is less than] :b)] if :a > :b [(print :a [is greater than] :b)]
end</lang> Each infix operator has prefix synonyms (equalp, equal?, lessp, less?, greaterp, greater?), where the 'p' stands for "predicate" as in Lisp.

LSE
avec SI
<lang LSE>(* Comparaison de deux entiers en LSE (LSE-2000) *) ENTIER A, B LIRE ['Entrez un premier entier:',U] A LIRE ['Entrez un second entier:',U] B SI A B ALORS
AFFICHER [U,' est plus grand que ',U,/] A, B
FIN SI</lang>
avec ÉVALUER
<lang LSE>(* Comparaison de deux entiers en LSE (LSE-2000) *) ENTIER A, B LIRE ['Entrez un premier entier:',U] A LIRE ['Entrez un second entier:',U] B EVALUER .VRAI.
QUAND A 
avec SI..IS
<lang LSE>(* Comparaison de deux entiers en LSE (LSE-2000) *) ENTIER A, B LIRE ['Entrez un premier entier:',U] A LIRE ['Entrez un second entier:',U] B AFFICHER [U, U, U, /] A, \ SI A B ALORS ' est plus grand que ' SINON '?' IS IS IS, B </lang>
LSE64
<lang lse64>over : 2 pick 2dup : over over
compare : 2dup = then " equals" compare : 2dup < then " is less than" compare : 2dup > then " is more than"
show : compare rot , sp ,t sp , nl</lang>
Lua
<lang lua>print('Enter the first number: ') a = tonumber(io.stdin:read()) print('Enter the second number: ') b = tonumber(io.stdin:read())
if a b then print(a .. " is greater than " .. b) end if a == b then print(a .. " is equal to " .. b) end</lang>
In lua, a double equals symbol is required to test for equality. A single equals sign is used for assignment, and will cause an error during jit precompilation, if it is used within a boolean expression:
<lang lua>-- if a = b then print("This will not work")</lang>
Maple
<lang Maple>CompareNumbers := proc( )
local a, b; printf( "Enter a number:> " ); a := parse(readline()); printf( "Enter another number:> " ); b := parse(readline()); if a b then printf("The first number is greater than the second"); end if;
end proc:
CompareNumbers();</lang>
Mathematica / Wolfram Language
<lang Mathematica>a=Input["Give me the value for a please!"]; b=Input["Give me the value for b please!"]; If[a==b,Print["a equals b"]] If[a>b,Print["a is bigger than b"]] If[a<b,Print["b is bigger than a"]]</lang>
Maxima
<lang maxima>/* all 6 comparison operators (last is "not equal") */ block(
[a: read("a?"), b: read("b?")], if a b then print(a, ">", b), if a >= b then print(a, ">=", b), if a = b then print(a, "=", b), if a # b then print(a, "#", b))$</lang>
MAXScript
<lang maxscript>a = getKBValue prompt:"Enter value of a:" b = getKBValue prompt:"Enter value of b:" if a b then print "a is greater then b" else if a == b then print "a is equal to b"</lang>
Metafont
<lang metafont>message "integer 1: "; a1 := scantokens readstring; message "integer 2: "; a2 := scantokens readstring; if a1 < a2:
message decimal a1 & " is less than " & decimal a2
elseif a1 > a2:
message decimal a1 & " is greater than " & decimal a2
elseif a1 = a2:
message decimal a1 & " is equal to " & decimal a2
fi; end</lang>
min
Works with: min version 0.19.3
<lang min>"$1 is $2 $3." ("Enter an integer" ask) 2 times over over (
((>) ("greater than")) ((<) ("less than")) ((==) ("equal to"))
) case ' append prepend % print</lang>
MiniScript
<lang MiniScript>integer1 = input("Please Input Integer 1:").val integer2 = input("Please Input Integer 2:").val if integer1 < integer2 then print integer1 + " is less than " + integer2 if integer1 == integer2 then print integer1 + " is equal to " + integer2 if integer1 > integer2 then print integer1 + " is greater than " + integer2</lang>
МК-61/52
<lang>- ЗН С/П</lang>
Input: a ^ b
Output: 1 (a > b) | -1 (a < b) | 0 (a = b)
ML/I
This reads the two numbers from 'standard input' or similar, and outputs the results to 'standard output' or equivalent. Note that ML/I only has tests for equality, greater-than, and greater-than-or-equal.
<lang ML/I>"" Integer comparison "" assumes macros on input stream 1, terminal on stream 2 MCSKIP MT,<> MCSKIP SL WITH ~ MCINS %. MCDEF SL SPACES NL AS <MCSET T1=%A1. MCSET T2=%A2. MCGO L1 UNLESS T1 EN T2 %A1. is equal to %A2. %L1.MCGO L2 UNLESS %A1. GR %A2. %A1. is greater than %A2. %L2.MCGO L3 IF %A1. GE %A2. %A1. is less than %A2. %L3. MCSET S10=0 > MCSET S1=1 ~MCSET S10=2</lang>
MMIX
Some simple error checking is included. <lang mmix>// main registers p IS $255 % pointer pp GREG % backup for p A GREG % first int B GREG % second int
// arg registers argc IS $0 argv IS $1
LOC Data_Segment GREG @ ERR BYTE "Wrong number of arguments",#a,0 ILLH BYTE "Argument -> ",0 ILLT BYTE " <- contains an illegal character",#a,0 LT BYTE "A is less than B",#a,0 EQ BYTE "A equals B",#a,0 GT BYTE "A is greater than B",#a,0
LOC #1000 GREG @ // call: p points to the start of a 0-terminated numeric string // leading chars + and - are allowed // reg $72 0 if negative int // reg $73 gen. purpose // return: reg $70 contains integer value readInt XOR $70,$70,$70 % reset result reg: N=0. LDA pp,p % remember &p LDBU $72,p CMP $73,$72,'+' % ignore '+' BZ $73,2F CMP $72,$72,'-' BNZ $72,1F 2H INCL p,1 JMP 1F % repeat 3H CMP $73,$71,'0' % if c < '0' or c > '9' BN $73,4F % then print err and halt program CMP $73,$71,'9' BP $73,4F SUB $71,$71,'0' % 'extract' number MUL $70,$70,10 ADD $70,$70,$71 % N = 10 * N + digit INCL p,1 1H LDBU $71,p % get next digit PBNZ $71,3B % until end of string CMP $72,$72,0 BNZ $72,2F % if marked negative NEG $70,$70 % then make negative 2H GO $127,$127,0 % return (N)
4H LDA p,ILLH TRAP 0,Fputs,StdErr LDA p,pp TRAP 0,Fputs,StdErr LDA p,ILLT TRAP 0,Fputs,StdErr TRAP 0,Halt,0
// entrance of program // e.g. ~> mmix compare2ints A B // Main CMP p,argc,3 % main (argc, argv) { BZ p,1F % if argc == 3 then continue LDA p,ERR % else print wrong number of args TRAP 0,Fputs,StdErr TRAP 0,Halt,0 // get ints A and B 1H LDOU p,argv,8 % fetch addres of first int GO $127,readInt % read int A ADD A,$70,0
LDOU p,argv,16 GO $127,readInt % read int B ADD B,$70,0
// perform comparison CMP A,A,B % case compare A B LDA p,LT BN A,2F % LT: print 'LT' LDA p,EQ BZ A,2F % EQ: print 'EQ' LDA p,GT % _ : print 'GT' 2H TRAP 0,Fputs,StdOut % print result TRAP 0,Halt,0</lang> Example of use:
~/MIX/MMIX/Progs> mmix compare2ints 121 122 A is less than B ~/MIX/MMIX/Progs> mmix compare2ints 121 121 A equals B ~/MIX/MMIX/Progs> mmix compare2ints 121 120 A is greater than B ~/MIX/MMIX/Progs> mmix compare2ints -121 -122 A is greater than B ~/MIX/MMIX/Progs> mmix compare2ints -121 -121 A equals B ~/MIX/MMIX/Progs> mmix compare2ints -121 -120 A is less than B
Modula-2
<lang modula2>MODULE IntCompare;
IMPORT InOut;
VAR
A, B: INTEGER;
BEGIN
InOut.ReadInt(A); InOut.ReadInt(B); InOut.WriteInt(A, 1);
IF A < B THEN InOut.WriteString(' is less than ') ELSIF A = B THEN InOut.WriteString(' is equal to ') ELSE InOut.WriteString(' is greater than ') END; InOut.WriteInt(B, 1); InOut.WriteLn
END IntCompare.</lang>
Modula-3
<lang modula3>MODULE Main;
FROM IO IMPORT Put, GetInt; FROM Fmt IMPORT Int;
VAR a,b: INTEGER;
BEGIN
a := GetInt(); b := GetInt(); IF a b THEN Put(Int(a) & " is greater than " & Int(b) & "\n"); END;
END Main.</lang>
MUMPS
<lang>INTCOMP
NEW A,B
INTCOMPREAD
READ !,"Enter an integer to test: ",A READ !,"Enter another integer: ",B IF (+A\1'=A)!(+B\1'=B) WRITE !!,"Please enter two integers.",! GOTO INTCOMPREAD IF AB WRITE !,A," is greater than ",B KILL A,B QUIT</lang>

Output:
USER>d INTCOMP^ROSETTA Enter an integer to test: 43 Enter another integer: 44 43 is less than 44 USER>d INTCOMP^ROSETTA Enter an integer to test: 44 Enter another integer: 43 44 is greater than 43 USER>d INTCOMP^ROSETTA Enter an integer to test: 2 Enter another integer: 2 2 is equal to 2
Nanoquery
<lang Nanoquery>print "enter first integer: " first = int(input()) print "enter second integer: " second = int(input())
if first = second println "the two integers are equal" else if first < second println first + " is less than " + second else if first > second println first + " is greater than " + second end</lang>
Nemerle
Showing both the use of comparison operators and the .Net Int32.CompareTo() method. <lang Nemerle>using System; using System.Console;
module IntComp {
Main() : void { def ReadInt() : int {Int32.Parse(ReadLine())} def WriteResult(x : int, y : int, res : string) : void {WriteLine($"$x is $res $y")} def a = ReadInt(); def b = ReadInt(); match(a) { |a when a > b => WriteResult(a, b, "greater than") |a when a WriteResult(a, b, "less than") |a when a == b => WriteResult(a, b, "equal to") } def x = a.CompareTo(b); match(x) { |x when x > 0 => WriteResult(a, b, "greater than") |x when x < 0 => WriteResult(a, b, "less than") |x when x == 0 => WriteResult(a, b, "equal to") } }
}</lang>
NetRexx
<lang NetRexx>/* NetRexx */ options replace format comments java crossref symbols nobinary
numL = 0 numR = 0 loop label running forever
say 'Provide two integers [or anything else to stop]:' parse ask numL numR . if \numL.datatype('w') | \numR.datatype('w') then leave running if numL < numR then say numL 'is less than' numR if numL = numR then say numL 'is equal to' numR if numL > numR then say numL 'is greater than' numR end running
return </lang>
NewLISP
<lang NewLISP> (print "Please enter the first number: ") (set 'A (int (read-line))) (print "Please enter the second number: ") (set 'B (int (read-line))) (println "The first one is "
(cond ((> A B) "greater than") ((= A B) "equal to") (true "less than"))
" the second.") </lang>
Nim
<lang nim>import rdstdin, strutils var a = parseInt(readLineFromStdin "Enter value of a: ") var b = parseInt(readLineFromStdin "Enter value of b: ")
if a < b:
echo "a is less than b"
elif a > b:
echo "a is greater than b"
elif a == b:
echo "a is equal to b"</lang>
NSIS
Pure NSIS (Using IntCmp directly)
<lang nsis> Function IntergerComparison Push $0 Push $1 StrCpy $0 8 StrCpy $1 2
IntCmp $0 $1 Equal Val1Less Val1More
Equal: DetailPrint "$0 = $1" Goto End Val1Less: DetailPrint "$0 < $1" Goto End Val1More: DetailPrint "$0 > $1" Goto End End:
Pop $1 Pop $0 FunctionEnd </lang>
Using LogicLib (bundled library)
Library: LogicLib
<lang nsis> Function IntegerComparison Push $0 Push $1
StrCpy $0 8 StrCpy $1 2
${If} $0 == $1 DetailPrint "$0 = $1" ${ElseIf} $0 < $1 DetailPrint "$0 < $1" ${ElseIf} $0 > $1 DetailPrint "$0 > $1" ${EndIf}
Pop $1 Pop $0 FunctionEnd </lang>
Oberon-2
<lang oberon2>MODULE Compare;
IMPORT In, Out;
VAR a,b: INTEGER;
BEGIN
In.Int(a); In.Int(b); IF a b THEN Out.Int(a,0); Out.String(" is greater than "); Out.Int(b,0); Out.Ln; END;
END Compare.</lang>
Objeck
<lang objeck> bundle Default {
class IntCompare { function : Main(args : String[]) ~ Nil { a := Console->GetInstance()->ReadString()->ToInt(); b := Console->GetInstance()->ReadString()->ToInt();
if (a < b) { Console->GetInstance()->Print(a)->Print(" is less than ")->PrintLine(b); };
if (a = b) { Console->GetInstance()->Print(a)->Print(" is equal than ")->PrintLine(b); };
if (a > b) { Console->GetInstance()->Print(a)->Print(" is greater than ")->PrintLine(b); }; } }
} </lang>
OCaml
<lang ocaml>let my_compare a b =
if a b then "A is greater than B" else if a = b then "A equals B" else "cannot compare NANs"
let () =
let a = read_int () and b = read_int () in print_endline (my_compare a b)</lang>
Octave
<lang octave>printf("Enter a: "); a = scanf("%d", "C"); printf("Enter b: "); b = scanf("%d", "C"); if (a > b)
disp("a greater than b");
elseif (a == b)
disp("a equal to b");
elseif (a < b)
disp("a less than b");
endif</lang>
Oforth
<lang Oforth>import: console
cmpInt
| a b |
doWhile: [ System.Console askln asInteger dup ->a isNull ] doWhile: [ System.Console askln asInteger dup ->b isNull ]
a b < ifTrue: [ System.Out a << " is less than " < ifTrue: [ System.Out a << " is greater than " <
Ol
<lang scheme> (define (compare a b)
(cond ((< a b) "A is less than B") ((> a b) "A is greater than B") ((= a b) "A equals B")))
(print (compare 1 2))
==> A is less than B
(print (compare 2 2))
==> A equals B
(print (compare 3 2))
==> A is greater than B
manual user input

(print (compare (read) (read))) </lang>
Oz
<lang oz>functor import
Application(exit) Open(text file)
define
Txt = class from Open.file Open.text end Stdout = {New Open.file init(name:stdout)} Stdin = {New Txt init(name:stdin)}
proc{Print Msg}
{Stdout write(vs:Msg)}
end
fun{GetInt Prompt}
{Print Prompt} {StringToInt {Stdin getS($)}}
end
Int1 = {GetInt "Enter 1st Integer:"} Int2 = {GetInt "Enter 2nd Integer:"}
if(Int1 < Int2) then {Print Int1#" less than "#Int2} end if(Int1 > Int2) then {Print Int1#" greater than "#Int2} end if(Int1 == Int2) then {Print Int1#" equal to "#Int2} end
{Application.exit 0} end</lang>
PARI/GP
<lang parigp>a=input(); b=input(); if(a<b, print(a" < "b)); if(a==b, print(a" = "b)); if(a>b, print(a" > "b));</lang>
Pascal
<lang pascal>program compare(input, output);
var
a, b: integer;
begin
write('Input an integer number: '); readln(a); write('Input another integer number: '); readln(b); if (a < b) then writeln(a, ' is less than ', b); if (a = b) then writeln(a, ' is equal to ', b); if (a > b) then writeln(a, ' is greater than ', b);
end.</lang>
Perl
Works with: Perl version 5.x
Separate tests for less than, greater than, and equals
<lang perl>sub test_num {
my $f = shift; my $s = shift; if ($f < $s){ return -1; # returns -1 if $f is less than $s } elsif ($f > $s) { return 1; # returns 1 if $f is greater than $s } elsif ($f == $s) {
= operator is an assignment

== operator is a numeric comparison
return 0; # returns 0 $f is equal to $s };
};</lang>
All three tests in one. If $f is less than $s return -1, greater than return 1, equal to return 0
<lang perl>sub test_num {
return $_[0] <=> $_[1];
};</lang> Note: In Perl, $a and $b are (kind of) reserved identifiers for the built-in sort function. It's good style to use more meaningful names, anyway.
<lang perl># Get input, test and display print "Enter two integers: "; ($x, $y) = split ' ', <>; print $x, (" is less than ", " is equal to ",
" is greater than ")[test_num($x, $y) + 1], $y, "\n";</lang>
Phix
Library: Phix/basics
atom a = prompt_number("first number:",{}), b = prompt_number("second number:",{}) printf(1,"%g is ",a) if a b then puts(1,"greater than") end if printf(1," %g",b)
PHL
<lang phl>module intergertest;
extern printf; extern scanf;
@Integer main [ var a = 0; var b = 0; scanf("%i %i", ref (a), ref (b));
if (a < b) printf("%i is less than %i\n", a::get, b::get);
if (a == b) printf("%i is equal to %i\n", a::get, b::get);
if (a > b) printf("%i is greater than %i\n", a::get, b::get);
return 0; ]</lang>
PHP
<lang php><?php
echo "Enter an integer [int1]: "; fscanf(STDIN, "%d\n", $int1); if(!is_numeric($int1)) {
echo "Invalid input; terminating.\n"; exit(1); // return w/ general error
}
echo "Enter an integer [int2]: "; fscanf(STDIN, "%d\n", $int2); if(!is_numeric($int2)) {
echo "Invalid input; terminating.\n"; exit(1); // return w/ general error
}
// now $int1 and $int2 are numbers. // for simplicity, this does not explicitly examine types
if($int1 < $int2)
echo "int1 < int2\n";
if($int1 == $int2)
echo "int1 = int2\n";
if($int1 > $int2)
echo "int1 > int2\n";
?></lang> Note that this works from the command-line interface only, whereas PHP is usually executed as wp:Common_Gateway_Interface CGI.
PicoLisp
<lang PicoLisp>(prin "Please enter two values: ")
(in NIL # Read from standard input
(let (A (read) B (read)) (prinl "The first one is " (cond ((> A B) "greater than") ((= A B) "equal to") (T "less than") ) " the second." ) ) )</lang>

Output:
Please enter two values: 4 3 The first one is greater than the second.
Pike
<lang pike>int main(int argc, array(int) argv){
if(argc != 3){ write("usage: `pike compare-two-ints.pike <x> <y>` where x and y are integers.\n"); return 0; } int a = argv[1]; int b = argv[2];
if(a > b) { write(a + " is greater than " + b + "\n"); } else if (a < b) { write(a + " is less than " + b + "\n"); } else { write(a + " is equal to " + b + "\n"); }
}</lang>
PL/I
<lang PL/I> declare (a, b) fixed binary;
get list (a, b); if a = b then
put skip list ('The numbers are equal');
if a > b then
put skip list ('The first number is greater than the second');
if a 
Plain English
<lang plainenglish>To run: Start up. Write "Enter the first number: " to the console without advancing. Read a first number from the console. Write "Enter the second number: " to the console without advancing. Read a second number from the console. If the first number is less than the second number, write "Less than!" to the console. If the first number is the second number, write "Equal!" to the console. If the first number is greater than the second number, write "Greater than!" to the console. Wait for the escape key. Shut down.</lang>
Pop11
<lang pop11>;;; Comparison procedure define compare_integers(x, y); if x > y then
printf('x is greater than y\n');
elseif x < y then
printf('x is less than y\n');
elseif x = y then
printf('x equals y\n');
endif; enddefine;
Setup token reader
vars itemrep; incharitem(charin) -> itemrep;
Read numbers and call comparison procedure
compare_integers(itemrep(), itemrep());</lang>
PowerShell
<lang powershell>$a = [int] (Read-Host a) $b = [int] (Read-Host b)
if ($a -lt $b) {
Write-Host $a is less than $b`.
} elseif ($a -eq $b) {
Write-Host $a is equal to $b`.
} elseif ($a -gt $b) {
Write-Host $a is greater than $b`.
}</lang>
PureBasic
<lang PureBasic>If OpenConsole()
Print("Enter an integer: ") x.i = Val(Input()) Print("Enter another integer: ") y.i = Val(Input())
If x < y Print( "The first integer is less than the second integer.") ElseIf x = y Print("The first integer is equal to the second integer.") ElseIf x > y Print("The first integer is greater than the second integer.") EndIf
Print(#CRLF$ + #CRLF$ + "Press ENTER to exit") Input() CloseConsole()
EndIf</lang>
Python
<lang Python>#!/usr/bin/env python a = input('Enter value of a: ') b = input('Enter value of b: ')
if a < b:
print 'a is less than b'
elif a > b:
print 'a is greater than b'
elif a == b:
print 'a is equal to b'</lang>
(Note: in Python3 input() will become int(input()))
An alternative implementation could use a Python dictionary to house a small dispatch table to be indexed by the results of the built-in cmp() function. cmp() returns a value suitable for use as a comparison function in a sorting algorithm: -1, 0 or 1 for <, = or > respectively. Thus we could use:
Works with: Python version 2.x only, not 3.x
<lang Python>#!/usr/bin/env python import sys try:
a = input('Enter value of a: ') b = input('Enter value of b: ')
except (ValueError, EnvironmentError), err:
print sys.stderr, "Erroneous input:", err sys.exit(1)
dispatch = {
-1: 'is less than', 0: 'is equal to', 1: 'is greater than' } print a, dispatch[cmp(a,b)], b</lang>
In this case the use of a dispatch table is silly. However, more generally in Python the use of dispatch dictionaries or tables is often preferable to long chains of elif' clauses in a condition statement. Python's support of classes and functions (including currying, partial function support, and lambda expressions) as first class objects obviates the need for a "case" or "switch" statement.
Quackery
<lang Quackery>$ "Please enter two numbers separated by a space; " input quackery cr say "The first number is " [ 2dup > iff [ say "larger than" ] done
2dup = iff [ say "equal to" ] done 2dup < if [ say "smaller than" ] ]
2drop say " the second number." cr</lang>

Output:
Testing in the Quackery shell (REPL).
/O> $ "Please enter two numbers separated by a space; " ... input quackery cr ... say "The first number is " ... [ 2dup > iff [ say "larger than" ] done ... 2dup = iff [ say "equal to" ] done ... 2dup < if [ say "smaller than" ] ] ... 2drop ... say " the second number." cr ... Please enter two numbers separated by a space; 4 2 The first number is larger than the second number. Stack empty.
R
<lang R>print("insert number a") a <- scan(what=numeric(0), nmax=1) print("insert number b") b <- scan(what=numeric(0), nmax=1) if ( a b ) {
print("a is greater than b")
} else if ( a == b ) { # could be simply else of course...
print("a and b are the same")
}</lang>
Racket
<lang Racket>#lang racket (define (compare-two-ints a b)
(define compared (cond ((> a b) "is greated than") ((= a b) "equals") ((< a b) "is lesser than"))) (format "~a ~a ~a" a compared b))
(compare-two-ints (read) (read))</lang>
Raku
(formerly Perl 6) <lang perl6>my $a = prompt("1st int: ").floor; my $b = prompt("2nd int: ").floor;
if $a < $b {
say 'Less';
} elsif $a > $b {
say 'Greater';
} elsif $a == $b {
say 'Equal';
}</lang>
With <=>:
<lang perl6>say <Less Equal Greater>[($a <=> $b) + 1];</lang>
A three-way comparison such as <=> actually returns an Order enum which stringifies into 'Decrease', 'Increase' or 'Same'. So if it's ok to use this particular vocabulary, you could say that this task is actually a built in:
<lang perl6>say prompt("1st int: ") <=> prompt("2nd int: ");</lang>
Raven
<lang Raven>"Enter the first number: " print expect trim 1.1 prefer as $a "Enter the second number: " print expect trim 1.1 prefer as $b
$a $b < if $b $a "%g is less than %g\n" print $a $b > if $b $a "%g is greater than %g\n" print $a $b = if $b $a "%g is equal to %g\n" print</lang>
REBOL
<lang REBOL> REBOL [ Title: "Comparing Two Integers" URL: http://rosettacode.org/wiki/Comparing_two_integers ]
a: ask "First integer? " b: ask "Second integer? "
relation: [ a b "greater than" ] print [a "is" case relation b] </lang>
Relation
There is no input, so numbers have to be given in code <lang Relation> set a = 15 set b = 21 if a > b ' a is bigger than b else if b > a ' b is bigger than a else ' a is equal to b end if end if </lang>
Retro
Taking the numbers from the stack:
<lang Retro>:example (ab-)
dup-pair gt? [ 'A>B s:put nl ] if dup-pair lt? [ 'A
REXX
<lang REXX>/*REXX program prompts for two integers, compares them, and displays the results.*/ numeric digits 2000 /*for the users that really go ka─razy.*/ @=copies('─', 20) /*eyeball catcher for the user's eyen. */ a=getInt(@ 'Please enter your 1st integer:') /*obtain the 1st integer from the user.*/ b=getInt(@ 'Please enter your 2nd integer:') /* " " 2nd " " " " */ say
if ab then say @ a ' is greater than ' b
exit /*stick a fork in it, we're all done. */ /*──────────────────────────────────────────────────────────────────────────────────────*/ getInt: do forever; say /*keep prompting the user until success*/
say arg(1) /*display the prompt message to console*/ parse pull x /*obtain X, and keep its case intact.*/ select when x= then call serr "No argument was entered." when words(x)>1 then call serr 'Too many arguments entered.' x when \datatype(x, 'N') then call serr "Argument isn't numeric:" x when \datatype(x, 'W') then call serr "Argument isn't an integer:" x otherwise return x /* [↑] Eureka! Return # to invoker. */ end /*select*/ end /*forever*/
/*──────────────────────────────────────────────────────────────────────────────────────*/ serr: say @ '***error*** ' arg(1); say @ "Please try again."; return</lang>

output (shows user input and computer program output together):
──────────────────── Please enter your 1st integer: bupkis ◄■■■■■■■■■■■■■■■ user input. ──────────────────── ***error*** Argument isn't numeric: bupkis ──────────────────── Please try again. ──────────────────── Please enter your 1st integer: 1 2 ◄■■■■■■■■■■■■■■■ user input. ──────────────────── ***error*** Too many arguments entered. ──────────────────── Please try again. ──────────────────── Please enter your 1st integer: 5.77 ◄■■■■■■■■■■■■■■■ user input. ──────────────────── ***error*** Argument isn't an integer: 5.77 ──────────────────── Please try again. ──────────────────── Please enter your 1st integer: -6 ◄■■■■■■■■■■■■■■■ user input. ──────────────────── Please enter your 2nd integer: 19.00 ◄■■■■■■■■■■■■■■■ user input. ──────────────────── -6 is less than 19.00
Ring
<lang ring> Func Compare a,b
if a b See "A is more than B" else See "A equals B" ok
</lang>
Rockstar
Minimized Rockstar:
<lang Rockstar> (Get two numbers from user) Listen to Number One Listen to Number Two (Check if n1 > n2) If Number One is greater than Number Two Say "The first is greater than the second"
(Check if n1 = n2) If Number One is Number Two Say "The Numbers are equal"
(Check if n1 < n2) If Number One is less than Number Two Say "The first is less than the second" </lang>
Idiomatic version: <lang Rockstar> Listen to your soul Listen to my words
If your soul is my words, Say "They're the same"
If your soul is stronger than my words, Say "The first was bigger"
If your soul is smaller than my words, Say "The second was bigger". </lang>
RPG
Two integers are passed as parameters. Because the command line casts numeric literals as packed(15,5), calling from the command line requires the user to specify the 8 nybbles in hexadecimal form:
CALL rc_intcmp (x'00000000' x'00000001')
<lang RPG>
h dftactgrp(*no)
d pi d integer1 10i 0 d integer2 10i 0
d message s 50a
if integer1 < integer2; message = 'Integer 1 is less than integer 2'; endif;
if integer1 > integer2; message = 'Integer 1 is greater than integer 2'; endif;
if integer1 = integer2; message = 'Integer 1 is equal to integer 2'; endif;
dsply message; *inlr = *on;
</lang>
Ruby
This uses Kernel#gets to get input from STDIN, and String#to_i to convert the string into an integer. (Without this conversion, Ruby would compare strings: 5 < 10 but "5" > "10".)
<lang ruby>a = (print "enter a value for a: "; gets).to_i b = (print "enter a value for b: "; gets).to_i
puts "#{a} is less than #{b}" if a b puts "#{a} is equal to #{b}" if a == b</lang>
Another way:
<lang ruby>a = (print "enter a value for a: "; gets).to_i b = (print "enter a value for b: "; gets).to_i
case a <=> b when -1; puts "#{a} is less than #{b}" when 0; puts "#{a} is equal to #{b}" when +1; puts "#{a} is greater than #{b}" end</lang>
Example input and output:
$ '''ruby compare.rb''' enter a value for a: '''5''' enter a value for b: '''10''' 5 is less than 10 $ '''ruby compare.rb''' enter a value for a: '''cat''' enter a value for b: '''dog''' 0 is equal to 0

Translation of: Python
An alternative method, which is similar to the python version mentioned above (at the time of writing this) is: <lang ruby># Function to make prompts nice and simple to abuse def prompt str
print str, ": " gets.chomp
end
Get value of a
a = prompt('Enter value of a').to_i
Get value of b
b = prompt('Enter value of b').to_i
The dispatch hash uses the <=> operator

When doing x<=>y:

-1 means x is less than y

0 means x is equal to y

1 means x is greater than y
dispatch = {
-1 => "less than", 0 => "equal to", 1 => "greater than"
}
I hope you can figure this out
puts "#{a} is #{dispatch[a<=>b]} #{b}"</lang>
Run BASIC
<lang runbasic>input "1st number:"; n1 input "2nd number:"; n2
if n1 < n2 then print "1st number ";n1;" is less than 2nd number";n2 if n1 > n2 then print "1st number ";n1;" is greater than 2nd number";n2 if n1 = n2 then print "1st number ";n1;" is equal to 2nd number";n2</lang>
Rust
Reading from stdin into a string is cumbersome at the moment, but convenience functions will be implemented in the future. <lang rust>use std::io::{self, BufRead};
fn main() {
let mut reader = io::stdin(); let mut buffer = String::new(); let mut lines = reader.lock().lines().take(2); let nums: Vec<i32>= lines.map(|string| string.unwrap().trim().parse().unwrap() ).collect(); let a: i32 = nums[0]; let b: i32 = nums[1]; if a b { println!("{} is greater than {}" , a , b) };
}</lang>
SAS
<lang sas>/* Showing operators and their fortran-like equivalents. Note that ~= and ^= both mean "different" */ data _null_; input a b; put a= b=; if a = b then put "a = b"; if a ^= b then put "a ^= b"; if a ~= b then put "a ~= b"; if a b then put "a > b"; if a <= b then put "a <= b"; if a >= b then put "a >= b"; if a eq b then put "a eq b"; if a ne b then put "a ne b"; if a lt b then put "a lt b"; if a gt b then put "a gt b"; if a le b then put "a le b"; if a ge b then put "a ge b"; cards; 1 2 2 1 1 1

run;</lang>
Scala
<lang scala>object IntCompare {
def main(args: Array[String]): Unit = { val a=Console.readInt val b=Console.readInt if (a < b) printf("%d is less than %d\n", a, b) if (a == b) printf("%d is equal to %d\n", a, b) if (a > b) printf("%d is greater than %d\n", a, b) }
}</lang>
Scheme
<lang scheme>(define (my-compare a b)
(cond ((< a b) "A is less than B") ((> a b) "A is greater than B") ((= a b) "A equals B")))
(my-compare (read) (read))</lang>
Seed7
<lang seed7>$ include "seed7_05.s7i";
const proc: main is func
local var integer: a is 0; var integer: b is 0; begin readln(a); readln(b);
if a b then writeln(a <& " is greater than " <& b); end if; end func;</lang>
SenseTalk
<lang sensetalk>Ask "Provide Any Number"
Put It into A
Ask " Provide Another Number"
Put it into B
if A is less than B Put A&" Is less than " &B end if
if A is greater than B Put A& " is Greater than " &B end if
If A is Equal to B Put A& " is Equal to " &B End If</lang>
Sidef
<lang ruby>var a = read("a: ", Number); var b = read("b: ", Number);
if (a < b) {
say 'Lower';
} elsif (a == b) {
say 'Equal';
} elsif (a > b) {
say 'Greater';
}</lang>

Output:
% sidef numcmp.sf a: 21 b: 42 Lower
Slate
<lang slate>[ |:a :b |
( a > b ) ifTrue: [ inform: 'a greater than b\n' ]. ( a 
Smalltalk
<lang smalltalk>| a b | 'a = ' display. a := (stdin nextLine asInteger). 'b = ' display. b := (stdin nextLine asInteger). ( a > b ) ifTrue: [ 'a greater than b' displayNl ]. ( a 
SNOBOL4
Comparisons in Snobol are not operators, but predicate functions that return a null string and generate a success or failure value which allows or blocks statement execution, and which can be tested for branching. Other numeric comparisons are ge (>=), le (<=) and ne (!= ). There is also a parallel set of L-prefixed predicates in modern Snobols for lexical string comparison.
<lang SNOBOL4>* # Get user input
output = 'Enter X,Y:' trim(input) break(',') . x ',' rem . y
output = lt(x,y) x ' is less than ' y :s(end) output = eq(x,y) x ' is equal to ' y :s(end) output = gt(x,y) x ' is greater than ' y
end</lang>
SNUSP
There are no built-in comparison operators, but you can (destructively) check which of two adjacent cells is most positive. <lang snusp>++++>++++ a b !/?\<?\# a=b
> - \# a>b - < a
Sparkling
<lang sparkling>let a = 13, b = 37; if a b {
print("a > b");
} else if a == b {
print("a == b");
} else {
print("either a or b or both are NaN");
}</lang>
SQL
Works with: Oracle
<lang sql> drop table test;
create table test(a integer, b integer);
insert into test values (1,2);
insert into test values (2,2);
insert into test values (2,1);
select to_char(a)||' is less than '||to_char(b) less_than from test where a < b;
select to_char(a)||' is equal to '||to_char(b) equal_to from test where a = b;
select to_char(a)||' is greater than '||to_char(b) greater_than from test where a > b; </lang>
SQL> SQL> 2 3 LESS_THAN -------------------------------------------------------------------------------- 1 is less than 2 SQL> SQL> 2 3 EQUAL_TO -------------------------------------------------------------------------------- 2 is equal to 2 SQL> SQL> 2 3 GREATER_THAN -------------------------------------------------------------------------------- 2 is greater than 1
SQL PL
Works with: Db2 LUW
With SQL only: <lang sql pl> CREATE TABLE TEST (
VAL1 INT, VAL2 INT
); INSERT INTO TEST (VAL1, VAL2) VALUES
(1, 2), (2, 2), (2, 1);
SELECT
CASE WHEN VAL1 < VAL2 THEN VAL1 || ' less than ' || VAL2 WHEN VAL1 = VAL2 THEN VAL1 || ' equal to ' || VAL2 WHEN VAL1 > VAL2 THEN VAL1 || ' greater than ' || VAL2 END COMPARISON
FROM TEST; </lang> Output:
db2 -t db2 => CREATE TABLE TEST ( db2 (cont.) => VAL1 INT, db2 (cont.) => VAL2 INT db2 (cont.) => ); DB20000I The SQL command completed successfully. db2 => INSERT INTO TEST (VAL1, VAL2) VALUES db2 (cont.) => (1, 2), db2 (cont.) => (2, 2), db2 (cont.) => (2, 1); DB20000I The SQL command completed successfully. db2 => SELECT db2 (cont.) => CASE db2 (cont.) => WHEN VAL1 < VAL2 THEN VAL1 || ' less than ' || VAL2 db2 (cont.) => WHEN VAL1 = VAL2 THEN VAL1 || ' equal to ' || VAL2 db2 (cont.) => WHEN VAL1 > VAL2 THEN VAL1 || ' greater than ' || VAL2 db2 (cont.) => END COMPARISON db2 (cont.) => FROM TEST; COMPARISON ----------------------------------- 1 less than 2 2 equal to 2 2 greater than 1 3 record(s) selected.
Works with: Db2 LUW

version 9.7 or higher.

With SQL PL: <lang sql pl> --#SET TERMINATOR @
SET serveroutput ON @
CREATE PROCEDURE COMPARISON (IN VAL1 INT, IN VAL2 INT)
BEGIN IF (VAL1 < VAL2) THEN CALL DBMS_OUTPUT.PUT_LINE(VAL1 || ' less than ' || VAL2); ELSEIF (VAL1 = VAL2) THEN CALL DBMS_OUTPUT.PUT_LINE(VAL1 || ' equal to ' || VAL2); ELSEIF (VAL1 > VAL2) THEN CALL DBMS_OUTPUT.PUT_LINE(VAL1 || ' greater than ' || VAL2); END IF; END @
CALL COMPARISON(1, 2) @ CALL COMPARISON(2, 2) @ CALL COMPARISON(2, 1) @ </lang> Output:
db2 -td@ db2 => SET serveroutput ON @ DB20000I The SET SERVEROUTPUT command completed successfully. db2 => CREATE PROCEDURE COMPARISON (IN VAL1 INT, IN VAL2 INT) db2 (cont.) => BEGIN db2 (cont.) => IF (VAL1 < VAL2) THEN db2 (cont.) => CALL DBMS_OUTPUT.PUT_LINE(VAL1 || ' less than ' || VAL2); db2 (cont.) => ELSEIF (VAL1 = VAL2) THEN db2 (cont.) => CALL DBMS_OUTPUT.PUT_LINE(VAL1 || ' equal to ' || VAL2); db2 (cont.) => ELSEIF (VAL1 > VAL2) THEN db2 (cont.) => CALL DBMS_OUTPUT.PUT_LINE(VAL1 || ' greater than ' || VAL2); db2 (cont.) => END IF; db2 (cont.) => END @ DB20000I The SQL command completed successfully. db2 => CALL COMPARISON(1, 2) @ Return Status = 0 1 less than 2 db2 => CALL COMPARISON(2, 2) @ Return Status = 0 2 equal to 2 db2 => CALL COMPARISON(2, 1) @ Return Status = 0 2 greater than 1
SSEM
The SSEM only provides one conditional operation: 011 Test, which causes execution to skip one instruction if the value in the accumulator is negative. We can use this to implement conditional tests along the lines of the following pseudocode:
accumulator := a - b; if accumulator >= 0 then (* a is not less than b, so *) goto next_test else goto less; next_test: accumulator := accumulator - 1; if accumulator >= 0 then goto greater else (* a and b are equal *) accumulator := 0; halt; greater: accumulator := 1; halt; less: accumulator := -1; halt
To run the SSEM program, load A into storage address 21 and B into storage address 22. No additional space is used. Like the pseudocode version, the program halts with the accumulator holding 1 if A>B, 0 if A=B, or -1 if A<B. <lang ssem>10101000000000100000000000000000 0. -21 to c 10101000000001100000000000000000 1. c to 21 10101000000000100000000000000000 2. -21 to c 01101000000000010000000000000000 3. Sub. 22 00000000000000110000000000000000 4. Test 00001000000001000000000000000000 5. Add 16 to CI 00101000000000000000000000000000 6. 20 to CI 00001000000000010000000000000000 7. Sub. 16 00000000000000110000000000000000 8. Test 11001000000000000000000000000000 9. 19 to CI 10001000000000100000000000000000 10. -17 to c 00000000000001110000000000000000 11. Stop 01001000000000100000000000000000 12. -18 to c 00000000000001110000000000000000 13. Stop 00001000000000100000000000000000 14. -16 to c 00000000000001110000000000000000 15. Stop 10000000000000000000000000000000 16. 1 00000000000000000000000000000000 17. 0 11111111111111111111111111111111 18. -1 11010000000000000000000000000000 19. 11 10110000000000000000000000000000 20. 13</lang>
Standard ML
<lang sml>fun compare_integers(a, b) =
if a b then print "A is greater than B\n" if a = b then print "A equals B\n"
fun test () = let open TextIO val SOME a = Int.fromString (input stdIn) val SOME b = Int.fromString (input stdIn) in compare_integers (a, b) end handle Bind => print "Invalid number entered!\n"</lang>
A more idiomatic and less error-prone way to do it in SML would be to use a compare function that returns type order, which is either LESS, GREATER, or EQUAL: <lang sml>fun myCompare (a, b) = case Int.compare (a, b) of
LESS => "A is less than B" | GREATER => "A is greater than B" | EQUAL => "A equals B"</lang>
Swift
<lang Swift>import Cocoa
var input = NSFileHandle.fileHandleWithStandardInput()
println("Enter two integers separated by a space: ")
let data = input.availableData let stringArray = NSString(data: data, encoding: NSUTF8StringEncoding)?.componentsSeparatedByString(" ") var a:Int! var b:Int! if (stringArray?.count == 2) {
a = stringArray![0].integerValue b = stringArray![1].integerValue
} if (a==b) {println("\(a) equals \(b)")} if (a < b) {println("\(a) is less than \(b)")} if (a > b) {println("\(a) is greater than \(b)")}</lang>

Output:
Enter two integers separated by a space: 234 233 234 is greater than 233
Tcl
This is not how one would write this in Tcl, but for the sake of clarity:
<lang tcl>puts "Please enter two numbers:"
gets stdin x gets stdin y
if { $x > $y } { puts "$x is greater than $y" } if { $x < $y } { puts "$x is less than $y" } if { $x == $y } { puts "$x equals $y" }</lang>
Other comparison operators are "<=", ">=" and "!=".
Note that Tcl doesn't really have a notion of a variable "type" - all variables are just strings of bytes and notions like "integer" only ever enter at interpretation time. Thus the above code will work correctly for "5" and "6", but "5" and "5.5" will also be compared correctly. It will not be an error to enter "hello" for one of the numbers ("hello" is greater than any integer). If this is a problem, the type can be expressly cast
<lang tcl>if {int($x) > int($y)} { puts "$x is greater than $y" }</lang>
or otherwise type can be checked with "if { string is integer $x }..."
Note that there is no substitution/evaluation here anywhere: entering "3*5" and "15" will parse "3*5" as a non-numerical string (like "hello") and thus the result will be "3*5 is greater than 15".
A variant that iterates over comparison operators, demonstrated in an interactive tclsh: <lang Tcl>% set i 5;set j 6 % foreach {o s} {< "less than" > "greater than" == equal} {if [list $i $o $j] {puts "$i is $s $j"}} 5 is less than 6 % set j 5 % foreach {o s} {< "less than" > "greater than" == equal} {if [list $i $o $j] {puts "$i is $s $j"}} 5 is equal 5 % set j 4 % foreach {o s} {< "less than" > "greater than" == equal} {if [list $i $o $j] {puts "$i is $s $j"}} 5 is greater than 4</lang>
TI-83 BASIC
<lang ti83b>Prompt A,B If A<B: Disp "A SMALLER B" If A>B: Disp "A GREATER B" If A=B: Disp "A EQUAL B"</lang>
TI-89 BASIC
<lang ti89b>Local a, b, result Prompt a, b If a b Then
">" → result
Else
"???" → result
EndIf Disp string(a) & " " & result & " " & string(b)</lang>
Toka
<lang toka>[ ( a b -- )
2dup < [ ." a is less than b\n" ] ifTrue 2dup > [ ." a is greater than b\n" ] ifTrue = [ ." a is equal to b\n" ] ifTrue
] is compare-integers
1 1 compare-integers 2 1 compare-integers 1 2 compare-integers</lang>
TUSCRIPT
<lang tuscript> $$ MODE TUSCRIPT
ASK "Please enter your first integer:": i1="" ASK "Please enter your second integer:": i2=""
IF (i1!='digits'||i2!='digits') ERROR/STOP "Please insert digits"
IF (i1==i2) PRINT i1," is equal to ",i2 IF (i1<i2) PRINT i1," is less than ",i2 IF (i1>i2) PRINT i1," is greater than ",i2 </lang>
UNIX Shell
There are multiple examples here, because each shell has a different form of the 'read' command.
Works with: ksh93
<lang bash>#!/bin/ksh
tested with ksh93s+
builtin printf
integer a=0 integer b=0
read a?"Enter value of a: " || { print -u2 "Input of a aborted." ; exit 1 ; } read b?"Enter value of b: " || { print -u2 "Input of b aborted." ; exit 1 ; }
if (( a b )) ; then
printf "%d is greater than %d\n" a b
fi
exit 0</lang>
One can backport the previous code to pdksh, which has no builtin printf, but can call /usr/bin/printf as an external program.
Works with: pdksh
<lang bash>#!/bin/ksh
tested with pdksh
integer a=0 integer b=0
read a?"Enter value of a: " || { print -u2 "Input of a aborted." ; exit 1 ; } read b?"Enter value of b: " || { print -u2 "Input of b aborted." ; exit 1 ; }
if (( a b )) ; then
printf "%d is greater than %d\n" $a $b
fi
exit 0</lang>

Works with: Bash
<lang bash>read -p "Enter two integers: " a b
if [ $a -gt $b ]; then comparison="greater than" elif [ $a -lt $b ]; then comparison="less than" elif [ $a -eq $b ]; then comparison="equal to" else comparison="not comparable to" fi
echo "${a} is ${comparison} ${b}"</lang>
Ursa
<lang ursa>decl int first second out "enter first integer: " console set first (in int console) out "enter second integer: " console set second (in int console)
if (= first second)
out "the two integers are equal" endl console
end if if (< first second)
out first " is less than " second endl console
end if if (> first second)
out first " is greater than " second endl console
end if</lang>
V
<lang v>[compare
[ [>] ['less than' puts] [<] ['greater than' puts] [=] ['is equal' puts] ] when].
|2 3 compare
greater than
|3 2 compare
less than
|2 2 compare
is equal</lang>
Vala
<lang vala> void main(){
int a; int b;
stdout.printf("Please type in int 1\n"); a = int.parse(stdin.read_line());
stdout.printf("Please type in int 2\n"); b = int.parse(stdin.read_line());
if (a < b) stdout.printf("%d is less than %d\n", a, b); if (a == b) stdout.printf("%d is equal to %d\n", a, b); if (a > b) stdout.printf("%d is greater than %d\n", a, b);
} </lang>
VBA
<lang vb>Public Sub integer_comparison()
first_integer = CInt(InputBox("Give me an integer.")) second_integer = CInt(InputBox("Give me another integer.")) Debug.Print IIf(first_integer < second_integer, "first integer is smaller than second integer", "first integer is not smaller than second integer") Debug.Print IIf(first_integer = second_integer, "first integer is equal to second integer", "first integer is not equal to second integer") Debug.Print IIf(first_integer > second_integer, "first integer is bigger than second integer", "first integer is not bigger than second integer")
End Sub</lang>
VBScript
Based on the BASIC
Implementation
<lang vb> option explicit
function eef( b, r1, r2 ) if b then eef = r1 else eef = r2 end if end function
dim a, b wscript.stdout.write "First integer: " a = cint(wscript.stdin.readline) 'force to integer
wscript.stdout.write "Second integer: " b = cint(wscript.stdin.readline) 'force to integer
wscript.stdout.write "First integer is " if a b then wscript.stdout.write "greater than " wscript.echo "Second integer."
wscript.stdout.write "First integer is " & _
eef( a < b, "less than ", _ eef( a = b, "equal to ", _ eef( a > b, "greater than ", vbnullstring ) ) ) & "Second integer."
</lang>
Visual Basic .NET
Platform: .NET
Works with: Visual Basic .NET version 9.0+
<lang vbnet>Sub Main()
Dim a = CInt(Console.ReadLine) Dim b = CInt(Console.ReadLine)
'Using if statements If a b Then Console.WriteLine("a is greater than b")
'Using Case Select Case a Case Is b Console.WriteLine("a is greater than b") End Select
End Sub</lang>
Wart
<lang wart>a <- (read) b <- (read) prn (if (a < b)
: "a is less than b" (a > b) : "a is greater than b" :else : "a equals b")</lang>
Wren
<lang ecmascript>import "io" for Stdin, Stdout
System.print("Enter anything other than a number to quit at any time.\n") while (true) {
System.write(" First number : ") Stdout.flush() var a = Num.fromString(Stdin.readLine()) if (!a) break System.write(" Second number : ") Stdout.flush() var b = Num.fromString(Stdin.readLine()) if (!b) break var s = (a-b).sign if (s < 0) { System.print(" %(a) < %(b)") } else if (s == 0) { System.print(" %(a) == %(b)") } else { System.print(" %(a) > %(b)") } System.print()
}</lang>

Output:
Sample session:
Enter anything other than a number to quit at any time. First number : 5 Second number : 23 5 < 23 First number : 56 Second number : 6 56 > 6 First number : 4 Second number : 4 4 == 4 First number : q
XLISP
<lang xlisp>(DEFUN COMPARE-INTEGERS ()
(DISPLAY "Enter two integers separated by a space.") (NEWLINE) (DISPLAY "> ") (DEFINE A (READ)) (DEFINE B (READ)) (COND ((> A B) (DISPLAY "The first number is larger.")) ((= A B) (DISPLAY "They are equal.")) ((< A B) (DISPLAY "The first number is smaller."))))</lang>
XPL0
<lang XPL0>code IntIn=10, Text=12; int A, B; [A:= IntIn(0);
B:= IntIn(0);
if AB then Text(0, "A>B"); CrLf(0); ]</lang>
XSLT
Because XSLT uses XML syntax, the less than and greater than operators which would normally be written '<' and '>' must be escaped using character entities, even inside of XPath expressions.
<lang xml><xsl:template name="compare">
<xsl:param name="a" select="1"/> <xsl:param name="b" select="2"/> <fo:block> <xsl:choose> <xsl:when test="$a < $b">a < b</xsl:when> <xsl:when test="$a > $b">a > b</xsl:when> <xsl:when test="$a = $b">a = b</xsl:when> </xsl:choose> </fo:block> </xsl:template></lang>
zkl
<lang zkl>var x,y; x,y=ask("Two ints: ").split(" ").apply("toInt") (if (x==y) "equal" else if (x<y) "less" else if(x>y) "greater").println()</lang>

Output:
Two ints: 3 2 greater
ZX Spectrum Basic
<lang zxbasic>10 INPUT "Enter two integers: ";a;" ";b 20 PRINT a;" is ";("less than " AND (a<b));("equal to " AND (a=b));("greather than " AND (a>b));b</lang>

In CFML

In CFScript

Relational Operators

"Spaceship" (compareTo) Operator

Icon and Unicon

Mathematica / Wolfram Language

Pure NSIS (Using IntCmp directly)

Using LogicLib (bundled library)