#Lexical_Analysis

Question

Marcos & prepocessor directive (#define, #include) are handle by which phase of compiler ?? Or it is not input to compiler,it is alredy handled in preprocessor???

Please explain in detail..

Comments

It is the task of pre - processor to deal with #include , #define directives etc. When we write #include <stdio.h> , it means that the contents of the header file is inserted into our source code where the header file is mentioned in the code before main()..

The header file say "stdio.h" means that the all the input output functions' declarations are inserted into our source code as we have no function declaration written by us and hence external to source code,

So before going to compiler , preprocessing step is done..

Answer 1

pre - processor phase Handel this macros and preprocessor directive.

Check all phases