$with binds the specified declarator to auto&& _ in the following braces block. More...

Macros
#define	with CPPX_WITH
	Real name: `$with` (the `$` is just removed by Doxygen). More...

#define	with_const CPPX_WITH_CONST
	Real name: `$with_const` (the `$` is just removed by Doxygen). More...

#define	CPPX_WITH(...) if ( auto&& _ [[maybe_unused]] = __VA_ARGS__; true )
	Binds the specified declarator to `auto&& _` in the following braces block. More...

#define	CPPX_WITH_CONST(...) if( const auto& _ [[maybe_unused]] = __VA_ARGS__; true )
	Binds the specified declarator to `const auto& _` in the following braces block. More...

Detailed Description

$with binds the specified declarator to auto&& _ in the following braces block.

Definition in file macro-with.hpp.

Macro Definition Documentation

◆ CPPX_WITH

#define CPPX_WITH ( ... ) if ( auto&& _ [[maybe_unused]] = __VA_ARGS__; true )

Binds the specified declarator to auto&& _ in the following braces block.

$with can be used to make clear that an object is used for constructor + destructor execution (RAII), or that it's used just to hold a temporary result in order to access parts of it using the _ name.

RAII examples:

$with( Lock( mutex ) ) access_resource();

$with( Const_<Lock>( mutex ) ) access_resource();

Definition at line 25 of file macro-with.hpp.

◆ CPPX_WITH_CONST

#define CPPX_WITH_CONST ( ... ) if( const auto& _ [[maybe_unused]] = __VA_ARGS__; true )

Binds the specified declarator to const auto& _ in the following braces block.

For example:

$with_const( Lock( mutex ) ) access_resource();

Definition at line 32 of file macro-with.hpp.

◆ with

#define with CPPX_WITH

Real name: $with (the $ is just removed by Doxygen).

Definition at line 7 of file macro-with.hpp.

◆ with_const

#define with_const CPPX_WITH_CONST

Real name: $with_const (the $ is just removed by Doxygen).

Definition at line 8 of file macro-with.hpp.