Retrieving an Element of an Array

In this task, the goal is to retrieve an element of an array.

Retrieving an Element of an Array
You are encouraged to solve this task according to the task description, using any language you may know.

mIRC

Interpeter: mIRC Script Editor Library: mArray Snippet

 alias readmyarray { echo -a $array_read(MyArray, 2, 3) }

C

 int array_index(int array[], int index) {
   return array[index];
 }
 

C++

 template <class T>
 T array_index(T *array, int index) {
   return array[index];
 }
 

C#

 int getArrayValue( int values[], int index ) {
   return values[index];
 }

Common Lisp

  (defun array-value (array index)
    (aref array index))

Perl

Interpreter: Perl 5.8.8

$elem = $array[0];

PHP

$array = array('php', 'has', 'arrays');
// First element 
$elem  = $array[0];

Ruby

 ary = ['Ruby','rules','big','time']
 #the first element
 element = ary[0]
 #or
 element = ary.first
 # => element = 'Ruby'

 #the last element
 element = ary[-1]
 #or
 element = ary.last
 # => element = 'time'

 #retrieving different values at once
 elements = ary.values_at(0,2,3)
 # => elements = ['Ruby','big','time']

 #select the first element of length 3
 element = ary.find{|el|el.length==3}
 # => element = "big"

x86 assembly

Assembler: nasm

mov esi, array_offset
mov ebx, 2
mov eax, [esi+ebx*4]