path « include « C File Q&A

1. What would a script to replace \ with / in many files look like?    stackoverflow.com

Yes, this is a really lazy question but I figure this is problem that people have often enough that someone here would have something already written to share. I have a ton ...

2. Check if file exists, including on PATH    stackoverflow.com

Given a filename in C, I want to determine whether this file exists and has execute permission on it. All I've got currently is:

if( access( filename, X_OK) != 0 ) {

3. Rules for locating header files    stackoverflow.com

When you write #include "foo.h" I would expect the compiler to check the directory of the file doing the including (as opposed to the current directory) first, and if not found ...

4. what is default path for header file included in c program?    stackoverflow.com

see if i write in any c file like

#include "header.h"

#include <header.h>

5. how to modify the path of a .h file when using #include <>?    stackoverflow.com

when we use #include < stdio.h > in linux platform, the compiler will search the stdio.h in /usr/include. How to change the path of using #include<>? thank you. I asked the question because ...