Warning directive

 

C

Language

Standard Library

Type support

Dynamic memory management

Error handling

Program utilities

Date and time utilities

Strings library

Algorithms

Numerics

Input/output support

Localization support

Thread support (C11)

Atomic operations (C11)

 

C language

General topics
Preprocessor
Comments
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ASCII chart
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Flow control
Conditional execution statements
if statement	switch statement
Iteration statements
for loop	while loop do-while loop
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continue statement break statement	goto statement return statement
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function declaration
inline specifier
Types
fundamental types pointer types compound types enumeration types	union types function types
Specifiers
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alignas specifier (C99)
function specifiers (C99)
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Utilities
typedef declaration
attributes (C99)
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Miscellaneous
Inline assembly

 

Preprocessor

#if#ifdef#ifndef#else#elif#endif

#define#undef#,## operators

#include

#warning

#error

#pragma

#line

 

Displays given message.

Syntax

#warning warning_message

Explanation

After encountering #warning directive, diagnostic message warning_message is shown.

warning_message can consist of several words.

See also

• error directive