[SOLVED] C Arguments to main

madsovenielsen · 07-24-2011, 05:42 PM

Whats wrong with this:

Code:

#include <stdio.h>

int main(int argc, char *argv[])
{
    if(argv[4] == "-verbose")
    {
        printf("Verbose is on");
    }  

  return 0;
}

I can use argv[4] in printf() just fine. But i can't compare the content of argv[] to anything.

Why ?

Kind regards Mads Nielsen

toredo · 07-24-2011, 05:46 PM

You have to use strcmp to compare two c-strings.

With '==' you compare in your case only the strings addresses, which here are never the same.
An you should always check the parameters-count (argc).

best regards
toredo

madsovenielsen · 07-25-2011, 07:17 AM

Thank you very much!