what is a macro how it is defined preprocessor, Computer Engineering

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what is a macro how it is defined preprocessor

What is a macro ? How it is defined ?

Preprocessor' is a translation phase that is applied to source code before the compiler proper gets its hands on it. Generally, the preprocessor performs textual substitutions on source code. Macro is a type of preprocessor which replaces instances of one piece of text with another. A preprocessor line of the form

#define name text

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