ScopeGuard< Fn > Struct Template Reference

An easy way to ensure that a function is called at the end of the current scope. More...

#include <juce_ScopeGuard.h>

Inherits Fn.

Public Member Functions
	~ScopeGuard ()

Detailed Description

template<typename Fn>
struct ScopeGuard< Fn >

An easy way to ensure that a function is called at the end of the current scope.

Usage:

{
    if (flag == true)
        return;
 
    // While this code executes, flag is true e.g. to prevent reentrancy
    flag = true;
    // When we exit this scope, flag must be false
    const ScopeGuard scope { [&] { flag = false; } };
 
    if (checkInitialCondition())
        return; // Scope's lambda will fire here...
 
    if (checkCriticalCondition())
        throw std::runtime_error{}; // ...or here...
 
    doWorkHavingEstablishedPreconditions();
} // ...or here!

Constructor & Destructor Documentation

~ScopeGuard()

template<typename Fn >

ScopeGuard< Fn >::~ScopeGuard

(

)

References ScopeGuard< Fn >::~ScopeGuard().

Referenced by ScopeGuard< Fn >::~ScopeGuard().

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

• juce_ScopeGuard.h