C Programming : Preprocessor
#pragma warn Macro Directive in C | Suppress Warning Messages
Pre-processor to Define String in C Programming
#pragma startup and #pragma exit directive in c Programming Language
#pragma directive in C : Implementation-specific directives
#undef : Undefine Macro (Preprocessor Directive in C Programming)
#ifndef statement : Conditional Compilation Directives (C Preprocessor)
#ifdef statement : Conditional Compilation Directives (C Preprocessor)
#elif statement : Conditional Compilation Directives (C Preprocessor)
#else statement : Conditional Compilation Directives (C Preprocessor)
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