Posted By:
2 Jul, 2013 1:47 am PDT

Header files in C++.

What are header files and why do we use it in a program?

Functions and macros are declared in header files. Header files are included in the source code with the help of #include directive.

For eg:#include include all the functions and macros defined in iostream.

There are many header files which are used for different tasks.

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