The C Preprocessor: Concept Index

Concept Index

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	Index Entry	Section

#
	‘`#`’ operator:	Stringification
	‘`##`’ operator:	Concatenation

_
	`_Pragma`:	Pragmas

A
	alternative tokens:	Tokenization
	arguments:	Macro Arguments
	arguments in macro definitions:	Macro Arguments
	assertions:	Obsolete Features
	assertions, canceling:	Obsolete Features

B
	backslash-newline:	Initial processing
	block comments:	Initial processing

C
	C++ named operators:	C++ Named Operators
	character constants:	Tokenization
	character set, execution:	Invocation
	character set, input:	Invocation
	character set, wide execution:	Invocation
	command line:	Invocation
	commenting out code:	Deleted Code
	comments:	Initial processing
	common predefined macros:	Common Predefined Macros
	computed includes:	Computed Includes
	concatenation:	Concatenation
	conditional group:	Ifdef
	conditionals:	Conditionals
	continued lines:	Initial processing
	controlling macro:	Once-Only Headers

D
	`defined`:	Defined
	dependencies for make as output:	Environment Variables
	dependencies for make as output:	Environment Variables
	dependencies, `make`:	Invocation
	diagnostic:	Diagnostics
	differences from previous versions:	Differences from previous versions
	digraphs:	Tokenization
	directive line:	The preprocessing language
	directive name:	The preprocessing language
	directives:	The preprocessing language

E
	empty macro arguments:	Macro Arguments
	environment variables:	Environment Variables
	expansion of arguments:	Argument Prescan

F
	FDL, GNU Free Documentation License:	GNU Free Documentation License
	function-like macros:	Function-like Macros

G
	grouping options:	Invocation
	guard macro:	Once-Only Headers

H
	header file:	Header Files
	header file names:	Tokenization

I
	identifiers:	Tokenization
	implementation limits:	Implementation limits
	implementation-defined behavior:	Implementation-defined behavior
	including just once:	Once-Only Headers
	invocation:	Invocation
	`iso646.h`:	C++ Named Operators

L
	line comments:	Initial processing
	line control:	Line Control
	line endings:	Initial processing
	linemarkers:	Preprocessor Output

M
	macro argument expansion:	Argument Prescan
	macro arguments and directives:	Directives Within Macro Arguments
	macros in include:	Computed Includes
	macros with arguments:	Macro Arguments
	macros with variable arguments:	Variadic Macros
	`make`:	Invocation
	manifest constants:	Object-like Macros

N
	named operators:	C++ Named Operators
	newlines in macro arguments:	Newlines in Arguments
	null directive:	Other Directives
	numbers:	Tokenization

O
	object-like macro:	Object-like Macros
	options:	Invocation
	options, grouping:	Invocation
	other tokens:	Tokenization
	output format:	Preprocessor Output
	overriding a header file:	Wrapper Headers

P
	parentheses in macro bodies:	Operator Precedence Problems
	pitfalls of macros:	Macro Pitfalls
	predefined macros:	Predefined Macros
	predefined macros, system-specific:	System-specific Predefined Macros
	predicates:	Obsolete Features
	preprocessing directives:	The preprocessing language
	preprocessing numbers:	Tokenization
	preprocessing tokens:	Tokenization
	prescan of macro arguments:	Argument Prescan
	problems with macros:	Macro Pitfalls
	punctuators:	Tokenization

R
	redefining macros:	Undefining and Redefining Macros
	repeated inclusion:	Once-Only Headers
	reporting errors:	Diagnostics
	reporting warnings:	Diagnostics
	reserved namespace:	System-specific Predefined Macros

S
	self-reference:	Self-Referential Macros
	semicolons (after macro calls):	Swallowing the Semicolon
	side effects (in macro arguments):	Duplication of Side Effects
	standard predefined macros.:	Standard Predefined Macros
	string constants:	Tokenization
	string literals:	Tokenization
	stringification:	Stringification
	symbolic constants:	Object-like Macros
	system header files:	Header Files
	system header files:	System Headers
	system-specific predefined macros:	System-specific Predefined Macros

T
	testing predicates:	Obsolete Features
	token concatenation:	Concatenation
	token pasting:	Concatenation
	tokens:	Tokenization
	trigraphs:	Initial processing

U
	undefining macros:	Undefining and Redefining Macros
	unsafe macros:	Duplication of Side Effects

V
	variable number of arguments:	Variadic Macros
	variadic macros:	Variadic Macros

W
	wrapper `#ifndef`:	Once-Only Headers
	wrapper headers:	Wrapper Headers

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