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From: CBFalconer <cbfalconer AT yahoo DOT com>
Organization: Ched Research
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Newsgroups: comp.os.msdos.djgpp
Subject: Re: command line argument
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Date: Wed, 09 Jan 2002 18:47:30 GMT
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Drac0 wrote:
> 
> /* could anyone tell me why this doesn't work? */
> 
> #include <stdio.h>
> 
> main(int argc, int * argv[])
> {
> 
> if(* argv[1] >= 100)
>         printf("argv is bigger or equal to 100!\n");
> else
>         printf("argv is less than 100!\n");
> return 0;
> }
> 
> /* I cant see why this shouldn't work! */

Compare with this, written about another query elsegroup:

c:\dnld\scratch>type junk.c
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv) {

  double d;
  float  f;
  int    i;

  if (argc < 2) printf("Usage: %s %s\n",
                       argv[0],
                       " number number ...");
  else {
     for (i = 1; i < argc; i++) {
        if (1 != sscanf(argv[i], "%lf", &d)) return EXIT_FAILURE;
        f = d;
        printf("%d: %25.20f, %15.10f %s\n",
               i, d, (double)f, argv[i]);
     }
  }
  return 0;
}

c:\dnld\scratch>gcc junk.c

c:\dnld\scratch>a 6.45 124.1
1:    6.45000000000000017764,    6.4499998093 6.45
2:  124.09999999999999431566,  124.0999984741 124.1

and note that main returns an int.

-- 
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