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Top Forums Programming Program Post 302740847 by Don Cragun on Friday 7th of December 2012 01:29:33 AM
Old 12-07-2012
Quote:
Originally Posted by shellwe
my this program is working when the argument is not provided why its not working when i m providing argument?



Code:
#include<iostream>
#include <dirent.h>
using namespace std;
int main(int agrc ,char *val[])
{
        DIR*dir;
        struct dirent * abcd;
        if(!val[1])
        {
                /*cout << "Invalid Execution Style: Use <Program Name> <Folder location>\n";*/
                dir = opendir(".");
                if(dir !=NULL)
                {
                        while ((abcd=readdir (dir))!=NULL)
                        {
                                if( abcd->d_name[0] != '.' )
                                        printf ("[%s]\n", abcd->d_name);

                        }
                        closedir(dir);

                        exit(0);
                }
                dir = opendir(val[1]);
                if(dir !=NULL)
                {
                        while ((abcd=readdir (dir))!=NULL)
                        {
                                if( abcd->d_name[0] != '.' )
                                        printf ("[%s]\n", abcd->d_name);
                        }
                        closedir(dir);
                        return 0;
                }
        }
}

Note the line of text I marked in red in your posting above. My guess would be that you never get to the part where you try to read the directory named by the 1st operand. Try rebuilding and rerunning your code after removing that line.
 

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