The main function is mandatory in every C program. However, you should learn C eventually. A C program must have at least one function which must be main.
Windows 7 can be compiled in another system e. A typical C program may contain one or more procedures functions to perform a task. Johnson made further changes to the language for several years to make it portable in Unix Operating system.
Johnson decided to rewrite the system in B language. You can store sections of C code in the form of libraries for future use.
Some of C Header files: stddef. The tutorials are designed for beginners who do not have any prior knowledge of C programming or, any other programming languages.