transiently.hpp File Reference

Go to the source code of this file.

Description

Test helper to perform temporary manipulations within a test scope.

Such safe manipulations can be achieved by tying the clean-up to the destructor of a token object in local scope. In the simple form, a reference to the original and the original value are captured; alternatively, both manipulation and clean-up can be given as Lambdas.

See also

TestHelper_test::checkLocalManipulation

scheduler-service-test.cpp

Definition in file transiently.hpp.

#include "lib/nocopy.hpp"
#include "lib/meta/function.hpp"
#include "lib/ppmpl.h"
#include <utility>

Classes
class	Transiently< TAR >
	Token to capture a value and restore original when leaving scope. More...
class	Transiently< void(void)>
	Variation where manipulation is done by λ More...

Macros
#define	TRANSIENTLY(_OO_)   lib::test::Transiently PPMPL_CAT(transientlyManipulated_,__LINE__)(_OO_); PPMPL_CAT(transientlyManipulated_,__LINE__)
	Macro to simplify capturing assignments. More...

Functions
template<typename FUN , typename = lib::meta::enable_if<lib::meta::has_Sig<FUN, void(void)>>>
	Transiently (FUN &&) -> Transiently< void(void)>
	deduction guide: use λ for manipulation and clean-up More...

Namespaces
	lib
	Implementation namespace for support and library code.

Macro Definition Documentation

TRANSIENTLY

#define TRANSIENTLY

(

_OO_

)

lib::test::Transiently PPMPL_CAT(transientlyManipulated_,__LINE__)(_OO_); PPMPL_CAT(transientlyManipulated_,__LINE__)

Macro to simplify capturing assignments.

Remarks

use as TRANSIENTLY(blah) = moo;

Definition at line 121 of file transiently.hpp.

Referenced by TestHelper_test::checkLocalManipulation(), SchedulerStress_test::investigateWorkProcessing(), BreakingPoint< CONF >::perform(), and ParameterRange< CONF >::perform().

Function Documentation

Transiently()

lib::test::Transiently

(

FUN &&

)

-> Transiently< void(void)>

deduction guide: use λ for manipulation and clean-up

Remarks

activated when given a function with signature <void(void)>