strcpy using pointers

Question

I\'m trying to write strcpy on my own using pointers and I get an error during runtime.

void str_cpy(char **destination, const char *source) {
//    char *s1         


        

Answer 1

Here is a complete implementation. Good article from here. Describes timing and performance. I did not measure myself though. http://www.howstuffworks.com/c35.htm

char* mystrcpy(char *dst, const char *src) {
char *ptr = dst;
while ((*dst++ = *src++) ) ;
return ptr;
}

int main(int argc, char *argv[]) {
const char *src = "This is C.\0";
char *dst = malloc(sizeof(char)*(strlen(src)+1)); //+1 for the null character
dst = mystrcpy(dst, src);
printf("%s",dst);
return 1;
}