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Compilation Process in C

Compilation

The conversion of source code into object code is known as compilation.This process is done with the help of compiler.

below is a full diagram of showing how source code convert into software(i.e software development in c)


Explanation:-


  1. Source code :- the c programming coding is known as source code. save your programe with .c extension then your file become source file for example in fig: sum.c is a source file in which source code is written to print a hello.
  2. Prerocessor :- first we need a preprocessor software to convert source file (i.e .c file).Preprocessor handle all those statement which is starting from # symbol.
  3. Header file :- In our programe as seen clearly in sum.c we did not create any header file (i.e which start from # symbol) we just use it.Preprocessor add the content of header file in our source file and creates a new file this file same as our source file but only difference is that the header file removed from the new file which is in .i extension as above sum.i
  4. Compiler :- the new file (i.e .i extension file) is made by preprocessor. now this file is compiled by compiler.Compiler also creates a new file i.e object file means in .obj file. compiler are of different -2 types for every platform.
  5. Library files :- now we need a library files because in object file there are many code written which cannot understand by operating system but the meaning of those codes are present in library files.
  6. Linker :- now we need a linker. Linker link the library file into object file and creates a new file which is .exe file(i.e software).

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