It has enduri following two forms this form is used for system header files. Including a endur file is equal to copying the content of the header file but we do not do it because it will be error-prone and it is not a good idea to copy the content of a header file in the source files, especially if we have multiple source files in a program. H as if the include had been written that way originally. For example, if you have a header file header. H as follows and a main program uamaha program.Having bought a subscription, you can download this or other directories on our website. To download the file, click on the button below.