Thread: strcmp return value on different compilers

Hello there, I'm having a problem with the strcmp return value. My compiler returns the correct value based on my research, but I tried to compile the code below on those online compilers and the result was 1.

My compiler gave me 10, which I consider to be the correct result according to strcmp - C++ Reference.

Can somebody explain this difference?
So strcmp is not very portable?

Here's the websites I used to test it:
C code - 8 lines - codepad
Compile and Execute Programs Online| Online IDE

Thanks in advance.

Code:

#include <stdio.h>
#include <string.h>

int main(void) {
    printf("Return value: %d\n", strcmp("Rocks", "Rockie"));
    
    return 0;
}

So strcmp is not very portable?

No strcmp() is very portable. You're just using it wrong.

Jim

Sorry, I misunderstood that part.

So my compiler returning how bigger or how smaller the value is, is just a plus and not a guaranteed result?

So my compiler returning how bigger or how smaller the value is, is just a plus and not a guaranteed result?

Correct, the standard only guarantees zero, greater than zero, or less than zero.

Jim

Thanks everybody and sorry for the misinterpretation.