What are you doing now?

barboolian · 01-15-2010, 05:25 AM

Somewhere else: Belgium

brianL · 01-15-2010, 05:30 AM

Or an alternative universe.

lupusarcanus · 01-15-2010, 05:46 AM

Or an alternative dimension.

brianL · 01-15-2010, 05:52 AM

Yes, turn left at the next alternative universe and you'll be in an alternative dimension.
Don't turn right, or you'll fall off the edge.

barboolian · 01-15-2010, 07:34 AM

In an alternative dimension there are lots of ways to turn other than left or right. Anyway, how do you know
whether Belgium is an alternative dimension?

brianL · 01-15-2010, 07:36 AM

I don't believe Belgium exists in any dimension.

MTK358 · 01-15-2010, 07:45 AM

Quote:

Originally Posted by MrCode

Okay, I've revised it so that gcc doesn't put out any errors/warnings:

Code:

#include <stdlib.h>
#include <stdio.h>

char answer1[] = "Not much.";
char answer2[] = "Something you don't need to know about";
char answer3[] = "Why do you care?";

int main(char* argc[],int argv)
{
    if(strcmp(argc,"What\'s-up?") > 0)
        printf("%s",answer1);
    else if(strcmp(argc,"Whatcha-doing?") > 0)
        printf("%s",answer2);
    else if(strcmp(argc,"How\'re you-doing?") > 0)
        printf("%s",answer3);
    else
        return 0;
}

...but I still get a segfault when I try to run it:

Code:

mrcode@linuxbox:~/Programs$ gcc askme.c -g -O9 -o askme
mrcode@linuxbox:~/Programs$ ./askme Watcha-doing?
Segmentation fault

Is it because I'm trying to compare argc with a string literal?

EDIT: It also segfaults even when no argument is passed (when it should just return normally...?)

(Note: I can start a new thread in the Programming forum if need be...I apologize for hijacking this one)

argc is an array of pointers to strings, not a pointer to a string.

Also, it's:

Code:

int main(int argc, char* argv[])

not:

Code:

int main(char* argc[],int argv)

Also, argc is the count of arguments, argv is an array of pointers. argv[0] is the text you used to launch the program.

Code:

$ cat stuff.c             
#include <stdio.h>            
#include <stdlib.h>           

int main(int argc, char* argv[]) {
        int i;                    
    for(i=0; i<argc; i++) {       
                puts(argv[i]);    
        }                         
}                                 
$ gcc stuff.c -o stuff
$ ./stuff
./stuff
$ ./stuff One
./stuff
One
$ ./stuff One Two
./stuff
One
Two

carbonfiber · 01-15-2010, 08:10 AM

1. man gcc FTW
2. -std=c99 -pedantic -Wall -Wextra FTW
3. wrong thread FTW

MBybee · 01-15-2010, 09:04 AM

I'd say it's telling you what it's doing - it's SEGFAULTing

GoinEasy9 · 01-15-2010, 09:43 AM

"Can you hear me Segfaulting now"?

Edit: BTW
Begin
Watching Dog chew leg on antique desk
Again

brianL · 01-15-2010, 09:55 AM

Watching this on BBC iPlayer:

http://www.bbc.co.uk/iplayer/episode...ighting_Women/

GoinEasy9 · 01-15-2010, 10:09 AM

Quote:

Watching this on BBC iPlayer:

http://www.bbc.co.uk/iplayer/episode...ighting_Women/

Actually glad this isn't available outside UK.

Waiting for a Public Citizen Webinar that starts at 12 noon EST

MrCode · 01-15-2010, 12:31 PM

Quote:

Originally Posted by MTK358

argc is an array of pointers to strings, not a pointer to a string.

Also, it's:

Code:

int main(int argc, char* argv[])

not:

Code:

int main(char* argc[],int argv)

Also, argc is the count of arguments, argv is an array of pointers. argv[0] is the text you used to launch the program.

Code:

$ cat stuff.c             
#include <stdio.h>            
#include <stdlib.h>           

int main(int argc, char* argv[]) {
        int i;                    
    for(i=0; i<argc; i++) {       
                puts(argv[i]);    
        }                         
}                                 
$ gcc stuff.c -o stuff
$ ./stuff
./stuff
$ ./stuff One
./stuff
One
$ ./stuff One Two
./stuff
One
Two

Thanks...I looked at another site trying to fix a different problem (completely unrelated to this one), and I found that it is indeed

Code:

 int main(int argc,char* argv[])

It's working now (sort of), and I'm actually thinking about maybe taking this further and making a simple Q/A-based AI out of it (with hard-coded answers; nothing too special).

Anyways, I'll go ahead and shut up about it now; it's working, and there's no reason I should be hijacking the thread anymore.

(I know how to pass arguments now! )

smeezekitty · 01-15-2010, 12:42 PM

You may also want to change "strcmp" to "strcmpi" so it is not case sensitive.

carbonfiber · 01-15-2010, 01:00 PM

Quote:

Originally Posted by MrCode

It's working now (sort of), and I'm actually thinking about maybe taking this further and making a simple Q/A-based AI out of it (with hard-coded answers; nothing too special).

Or, indeed, special at all.

What I am doing now: being honest and an arsehole :P