How to change current working directory in C++?

g4j31a5 · 04-29-2007, 10:28 PM

Hi, I want to know how can I change the working directory in C++? I have a system call that executes LaTeX to make a PostScript file. But everytime I call that method, LaTeX made its files (.aux, .log, .dvi, and .ps) in the same directory as the executable. I wanted to be able to call LaTeX from another directory so LaTeX will make its files inside that directory. So, how do I do that?

Thanks in advance.

graemef · 04-29-2007, 11:24 PM

C++ itself doesn't support such requirements. However you can perform it using the specific OS command, and the system() function call.

g4j31a5 · 04-29-2007, 11:42 PM

Quote:

Originally Posted by graemef

C++ itself doesn't support such requirements. However you can perform it using the specific OS command, and the system() function call.

I thought so too. BTW, I've been doing some man and info browsing and found out about setenv. So maybe I can do it like this:

Code:

setenv("PWD","./Temp/", 1);
system("latex ....");

Haven't tried it yet though. Thanks.

Matir · 04-30-2007, 01:08 AM

Actually, I would look at chdir(2). For example:

Code:

#include <unistd.h>

int main(int argc,char **argv){
    chdir("/new/working/directory");
    return 0;
}

g4j31a5 · 05-09-2007, 10:18 PM

Thanks Matir, I've looked at the manpage of chdir. I think it's just the one I need. Thanks alot for the help.