Non-decimal radices/Input: Difference between revisions
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String '100' in base 19 is 361 in base 10
String '100' in base 20 is 400 in base 10</pre>
=={{header|Delphi}}==
{{works with|Delphi|6.0}}
{{libheader|SysUtils,StdCtrls}}
Delphi has built in functions that can input numbers in decimal and hexadecimal. Here is simple subroutine that can input number in any radix from 2 to 36.
<syntaxhighlight lang="Delphi">
function InputByRadix(S: string; Radix: integer): integer;
{Coverts the input string of the specified radix to an integer}
{Accepts digits in the range 0..9 and A..Z and ignores anything else}
var I,B: integer;
begin
Result:=0;
S:=UpperCase(S);
for I:=1 to Length(S) do
begin
if S[I] in ['0'..'9'] then B:=byte(S[I])-$30
else if S[I] in ['A'..'Z'] then B:=byte(S[I])-$41;
Result:=Result * Radix + B;
end;
end;
procedure ShowRadixInput(Memo: TMemo);
var Base,I: integer;
begin
for Base:=2 to 20 do
begin
I:=InputByRadix('100',Base);
Memo.Lines.Add(Format('String "100" in base %2D is %3D in Base 10',[Base,I]));
end;
end;
</syntaxhighlight>
{{out}}
<pre>
String "100" in base 2 is 4 in Base 10
String "100" in base 3 is 9 in Base 10
String "100" in base 4 is 16 in Base 10
String "100" in base 5 is 25 in Base 10
String "100" in base 6 is 36 in Base 10
String "100" in base 7 is 49 in Base 10
String "100" in base 8 is 64 in Base 10
String "100" in base 9 is 81 in Base 10
String "100" in base 10 is 100 in Base 10
String "100" in base 11 is 121 in Base 10
String "100" in base 12 is 144 in Base 10
String "100" in base 13 is 169 in Base 10
String "100" in base 14 is 196 in Base 10
String "100" in base 15 is 225 in Base 10
String "100" in base 16 is 256 in Base 10
String "100" in base 17 is 289 in Base 10
String "100" in base 18 is 324 in Base 10
String "100" in base 19 is 361 in Base 10
String "100" in base 20 is 400 in Base 10
</pre>
=={{header|E}}==
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