A preprocessor Is a software program that processes a source file before sending it to be complied .inclusion of header files,macro expansion ,conditional compilation,and line control are all possible with the preprocessor.
Sandhya Answered question June 30, 2023
The C preprocessor is a macro processor that the C compiler uses automatically to alter your program before to compilation.
A macro processor is so named because it allows you to define macros, which are short abbreviations for longer structures.
Lines in your program that begin with # are preprocessing directives.
The # is followed by an identifier, which is the name of the directive. #define, for example, is the directive that defines a macro. Whitespace is also permitted before and after the # symbol.
Vishalini.R Answered question June 23, 2023