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Q3 What is Conditional Compilation? how to use #ifdef #else #endif block by macro name.

L8Q3_What is Conditional Compilation

Program: 147

What is Conditional Compilation? how to use #ifdef #else #endif block by macro name.

Definition:

It is a process to skip the part of a source code, if macroname has been defined, the block of code (#ifdef) will be processed otherwise #else block.

Conditional Compilation

Example:

Output:

He is a boy.
 Good guess!
Programs
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