[rosalindwills]

Hullo.

I've got to do a homework problem wherein I'm supposed to write a version of strcmp that does not use any C library functions but instead uses pointer notation for the strings it's testing. I'm having some issues here; my facility with PHP and Java is sort of working against me.

#include <stdio.h>

int stringcomp(char *string1, char *string2);

int main() {
  char *string1[5] = "hello";
  char *string2[5] = "tests";
  int test = stringcomp(&string1, &string2);
  if (test == 0) {
  	printf("same\n");
  } else {
  	printf("not the same\n");
  }
  return 0;
}

int stringcomp(char *string1, char *string2) {
  int counter = 0;
  while (*(string1++) != '\0' && *(string2++) != '\0') {
  	if (string1[counter] > string2[counter]) {
  		return 1;
  	} else if (string1[counter] < string2[counter]) {
  		return -1;
  	}
    counter++;
  }
  return 0;
}

When I run this code, I get errors on the assignment of the "test" variable -- two "invalid initializer" errors and two "passing argument from incompatible pointer type". I don't need fully written code as an answer but I'd appreciate a hint as to where I'm going wrong here. I tried using (*string1, *string2) as arguments instead, as well as (string1, string2), but the same errors cropped up.

Thanks for any help anyone can provide.

[salem]

> char *string1[5] = "hello";
> char *string2[5] = "tests";
Remove the array dimensions, you just have single strings.

> int test = stringcomp(&string1, &string2);
Remove the &

> while (*(string1++) != '\0' && *(string2++) != '\0')
Remove the ++