Programming in C: Unit I (d): Preprocessor Directives

Types of Preprocessor Directives

Programming in C

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We can broadly categorize the preprocessor directives into two groups-conditional and unconditional preprocessor directives.

TYPES OF PREPROCESSOR DIRECTIVES

We can broadly categorize the preprocessor directives into two groups-conditional and unconditional preprocessor directives. Figure 10.1 shows the categorization of preprocessor directives.

The conditional directives are used to instruct the preprocessor to select whether or not to include a chunk of code in the final token stream passed to the compiler. Such directives comprise directives such as #if, #else, #elif, #ifdef, #ifndef, and #endif.

The unconditional directives such as #define, #line, #undef, #include, #error, and #pragma perform well- defined task. In this chapter we will learn about all these directives in detail.

Programming in C: Unit I (d): Preprocessor Directives : Tag: : Programming in C - Types of Preprocessor Directives

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Programming in C: Unit I (d): Preprocessor Directives

Introduction of Preprocessor Directives - Programming in C

Types of Preprocessor Directives - Programming in C

#define - with Example C Programs | Preprocessor Directives

#include - with Example C Programs | Preprocessor Directives

#undef - with Example C Programs | Preprocessor Directives

#line - with Example C Programs | Preprocessor Directives

Pragma Directives - with Example C Programs | Preprocessor Directives

Conditional Directives - with Example C Programs | Preprocessor Directives

Defined Operator - with Example C Programs | Preprocessor Directives

#Error Directive - with Example C Programs | Preprocessor Directives

Predefined Macro Names - with Example C Programs | Preprocessor Directives

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Programming in C

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