Program arguments

[Wynd]

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

[crptcblade]

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

[Wynd]

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

#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.

[filburt1]

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

[Zaei]

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

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

Z.

[Vlatko]

USe

#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;
}

[Zaei]

I win =P.

Z.

[parksie]

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