#include <string.h>
void *memset(void *s, int c, size_t n);
#include <stdio.h>
#include <string.h>
int main()
{
char s[32];
memset(s, 'X', sizeof(s));
s[31] = '\0';
printf ("%s\n", s);
return 0;
}
./memset
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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