command line arguments question

Hey guys im just playing around with this program which counts comments from source files such as .h or .c files. How would i pass command Line Arguments when i run the program.

Iv done some passing but it dosnt seem to work im not sure if im passing the arguments correctly when i run it?

Code:

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#include <stdlib.h>
#include <stdio.h>
#include "myprogexam.h"
#include <string.h>
#include <ctype.h>

#define TRUE  1
#define FALSE 0

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

  if(argc !=2)
  {
      printf("not enough arguments passed!\n");
      return EXIT_FAILURE;
  }
  if(argc >3)
  {
      printf("Too many arguments:\n");
      exit(0);
  }

  numComments = displayComments(argv);

  return EXIT_SUCCESS;
}

int displayComments(char **argv)
{
 
  FILE *fp; /* fp point to a file*/
  int currentChar, previousChar;
  int notYetCommentLine, blanksOnlySoFar;
  int numComments, i;
 
  char * suffix[] = {".h", ".c", NULL};
  char * filename;

  /* allocate dynamic space for the file*/
 
  filename  = malloc(sizeof(char) * (strlen(*argv) + 3));
   
  /* check if the filename exists*/

  if(!filename)
  {
    printf("Something went wrong!\n");
    return -1;
  } 
  printf("hello\n");
  /* count the comments in each file*/
 
  for(i=0; suffix[i]; i++)
  {
      strcpy(filename, *argv);
      strcat(filename, suffix[i]);

      fp = fopen(filename, "r");

      if(fp)
      {
        previousChar = '\0';
        blanksOnlySoFar = TRUE;
        notYetCommentLine = TRUE;

        while((currentChar=fgetc(fp)) !=EOF)
        {
            if(currentChar == '/' && previousChar == '/' &&
              blanksOnlySoFar && notYetCommentLine)
            {
                notYetCommentLine = FALSE;
                numComments++;
                putchar('/');
            }
            else if (currentChar == '\n')
            {
                if(!notYetCommentLine) putchar('\n');
                notYetCommentLine = TRUE;
                blanksOnlySoFar = TRUE;

            }
            else if (!isspace(currentChar) && (currentChar != '/'))
            {

                blanksOnlySoFar = FALSE;
            }

            if (!notYetCommentLine) putchar(currentChar);
           
            previousChar = currentChar;

        }
        fclose(fp);
      }   

  }
  free(filename);
  return numComments;

}

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Quote:

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How would i pass command Line Arguments when i run the program

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myprogram.exe <arg1> <arg2> <arg3> etc...

look, when u you say like this

Code:

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strcpy(filename, *argv);

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u are basically reading the content of first argv[0] which is nothing but your on going file its self. if u understand buthib post

myprogram.exe <arg1> <arg2> <arg3> etc...
argv[0] [1] [2] [3]

in your case if u say *argv its return u the same exe file rather than the parameter. the example program mighht explain u more

Code:

---

#include<stdio.h>

int main(int argc,char  **argv)
{
    printf("The no of argumenets %d\n",argc);
   
    printf("The argument that u reading : - %s\n",*argv);  // this is what u have done
    printf("The argumwnt that i have read : - %s %s\n",argv[0],argv[1]);

    getchar();
}
/*myoutput
[d4088019@outcast ~/second]$ a.out hello.c
The no of argumenets 2
The argument that u reading : - a.out
The argumwnt that i have read : - a.out hello.c
*/

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NOTE: no need of Strcat fucntion, b'cos u reading the file name with the extention itself

ssharish2005