#include <stdio.h>

int main(void)
{
    char source[100] = "Source string";
    char destination[10];

    const char *src = source;
    char *dst = destination;
    int  max_len_copy = sizeof(destination);

    while(*src != '\0' && max_len_copy-- > 1){
	*dst++ = *src++;
    }
    *dst = '\0';

    return 0;
}