Program arguments

How can I pass arguments to a console program? Something like: progname -a

http://161.58.186.97/showthread.php?...ht=commandline

:D

Ok, that helped a lot. I wrote a little program using it, but it crashes.

Code:

---

#include <iostream.h>
#include <string.h>

int main(int argc, char* argv[])
{
        for (int i = 1; i <= argc; i++)
        {
                if (strcmp(argv[i], "-a") == 0)
                        cout<<"ok"<<endl;
        }
        return 0;
}

---

If i type "<progname> -a" it prints ok, but it still crashes.

How does it crash? Does it ever get to the return 0?

Dont know if this is the problem, but change your for loop to this:

Code:

---

for(int i = 0; i < argc; ++i) {.. }

---

Z.

USe

Code:

---

#include <iostream.h>
#include <string.h>

int main(int argc, char* argv[])
{
        for (int i = 1; i < argc; i++)
        {
                if (strcmp(argv[i], "-a") == 0)
                        cout<<"ok"<<endl;
        }
        return 0;
}

---

I win =P.

Z.

Also remember that argv[argc] is defined (in the standard) to be NULL :)