Can the C preprocessor do this?

MadCactus · 08-23-2004, 12:42 PM

Hi,

I would like, in my C program, using macros, to:

1) Get the full pathnames of various directories in the installation
2) Append filenames to these literals
3) Use them in my program

However I understand that when pasting, macro definitions are not expanded so concatenation is not actually possible with a pre-defined macro as an argument.

Is there then another way to do this?

aluser · 08-23-2004, 10:40 PM

This sounds like something that should be done in your Makefile or a configure script. Figure out the full path somehow with the shell, and pass it as a simple define with -D

cppkid · 08-24-2004, 01:29 AM

If you want to do it inside your C++ program you can get the current working directory by getcwd() or if you want to get the path of the directory where your setup file exists, or from where you have launched your program setup you can get it from /proc/self/exe .
If this is not what you want please give a little discription of what you want to do.