Using a text editor.
Example:
/* myheader.h */
#ifndef MYHEADER_H
#define MYHEADER_H
extern int myvariable;
extern int myfunction (int x, int y, int z);
#endif
Look for typedef in it, but I don't think you will find any.
list of header files in c and function prototype associated with each file
You do not need a header file to add two numbers in C. You do need the header files if you want to use the run-time library, which includes the ability to format and display the result.
None, but there are some predefined defines, like __STDC__
Include the header file math.h and use the function acos(d)
Windows h is a header file for the programming language C++. If one were looking to learn about this specific header file there are forums that exist specifically for this topic on the C plus plus help page.
Platform dependent, possibly LIBC.LIB or something like that.
C programs do not require header files. If you want a C program without header files, you can simply not create them. However, you may or may not be able to include your non-header file source files.
No predefined 'header' function in the standard C libraries. There are header files, if that's what you mean.
When you includes any header file using "" that time compiler try to locate this file first from your program's local directory and then from library. But if you include the .h file using <> then compiler assumes you are including some library file.
Header File in C/C++ are the files which contains the definition of the pre-defined functions, data-types & constants, etc. By adding the header file you reduce your job of defining the same functions which are defined earlier by someone else & you can use those functions/data-types easily.
Constants, typedefs, function prototypes. If you want to know more, load it into a text editor.