Overrides the value of a variable and restores it to the original value when destructed. More...

Classes
class	Holder
	Type-accurate class that holds the temporary variable with the old value, the pointer to the variable and restores the previous state upon destruction. More...

class	HolderBase
	Virtual base class for the destructible holders. More...

Public Member Functions
template<class T , typename U >
	ScopedOverride (T *variable, U new_value)
	Constructor.

void	restore ()
	Restores the original value.

Private Attributes
std::unique_ptr< HolderBase >	holder_
	Smart ptr that will reset the variable to the previous value when going out of scope.

Detailed Description

Overrides the value of a variable and restores it to the original value when destructed.

Useful for changing flags for a single test only.

Usage: { ScopedOverride ov(&DATAGRAM_RESPONSE_TIMEOUT_NSEC, 100000); ... test code assuming new value ... } ... now the original value is restored.

Definition at line 332 of file test_main.hxx.

Constructor & Destructor Documentation

template<class T , typename U >

ScopedOverride::ScopedOverride	(	T *	variable,
		U	new_value
	)

inline

Constructor.

Parameters

variable	what to set temporarily
new_value	what should be the new value of variable during this code block.

Definition at line 342 of file test_main.hxx.

void ScopedOverride::restore ( )

inline

Restores the original value.

Definition at line 348 of file test_main.hxx.

std::unique_ptr<HolderBase> ScopedOverride::holder_

private

Smart ptr that will reset the variable to the previous value when going out of scope.

Definition at line 393 of file test_main.hxx.

The documentation for this class was generated from the following file: