Newbie : Simple yet not working :(

[Philip Tong]

I've just started learning C. When I compile the program below, either
with 'gcc' or 'g++' no errors were displayed and the binary file will be
created. When I execute it, nothing will happen at all. What have I done
wrong?

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#include <stdio.h>
#include <string.h>

int main()
{
int x;

x=0;
while (x==0)
     {
     x=getchar();
     }

printf("%d = %c\n",x,x);


return 0;
}
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