Thread: My program is displaying.....actual hearts

Originally Posted by Wiretron

What normally causes this?

Attempting to print the character representation of an integer value such as 3 rather than the intended '3'.

Code:

#include <stdio.h>

int main(void)
{
   int value = 3;
   printf("%%d: %d, %%c : %c\n", value, value);
   value = '3';
   printf("%%d: %d, %%c : %c\n", value, value);
   return 0;
}

/* my output
%d: 3, %c : 
%d: 51, %c : 3
*/

Make sure you are initializing the variable that is holding this "heart" to zero. Like if it was a C-style string, it would be initialized like this:

Code:

char var[256]={0};

If it's not initialized to zero then it may have that junk in it.

You probably just have %c instead of %d (or %i, which is the same thing as %d).