[c-prog] arrays in Borland C++ 3.1

[alex_merlin_1985]

Hi!

Could you give me an idea about how can i check if in an array is set
a key, for example:

#include <conio.h>
#include <iostream.h>

void main()
{
 int x[10];

 x[0] = 1;
 x[1] = 2;
}

i need a method to check if is set a value or exists x[2]

thx