Preprocessor in C│C programming│Part# 47│Learn CSE Malayalam

Preprocessor is a program that process the source program before it passes through the compiler. All the preprocessor directives starts with the symbol # and also don't require a semicolon at the end. Preprocessors are mainly categorized into 1) Macro Substitution 2) File Inclusion 3) Compiler Control Macro substitution is a process of replacing an identifier with a predefined string. #define is used for macro substitution. File inclusion is used to include a file which is user defined or predefined with a new program that we are writing. #include is the preprocessor used along with file inclusion. The compiler control directives can control the working of a compiler by adding conditional definition for macros and program portable codes. 03:08 : Macro Substitution 10:54 : File Inclusion 13:48 : Compiler Control Directives Basic structure of a C program :    • Basic Structure of C Program│C programming...   Compilers :    • Introduction to Compilers│Compiler Design│...   Please comment your suggestions & required topics. Our E-mail id: learncse.malayalam@gmail.com Follow us in :   / learncsemalayalam