Mcro::Once::FOnce Struct Reference

Used for lambdas which supposed to run only once. The first time it is converted to bool it returns true but every other times it will return false. More...

#include <Once.h>

Public Member Functions
FORCEINLINE	FOnce ()
FORCEINLINE	FOnce (const FOnce &from)
FORCEINLINE	FOnce (FOnce &&from) noexcept
FORCEINLINE	operator bool ()
FORCEINLINE bool	IsTriggered () const
FORCEINLINE void	Reset ()

Detailed Description

Used for lambdas which supposed to run only once. The first time it is converted to bool it returns true but every other times it will return false.

Usage:

using namespace BaseUtils;
SomeEvent.AddLambda([once = FOnce()]
{
    // Just use it inside a condition
    if (once) { ... }
    
    // exploiting short-circuit:
    if (MyCondition && once) { ... }
 
    // but this will not produce the expected result:
    if (once && MyCondition) { ... } // BAD
}

Definition at line 39 of file Once.h.

Constructor & Destructor Documentation

FOnce() [1/3]

FORCEINLINE Mcro::Once::FOnce::FOnce ( )

inline

Definition at line 45 of file Once.h.

FOnce() [2/3]

FORCEINLINE Mcro::Once::FOnce::FOnce ( const FOnce & from )

inline

Definition at line 46 of file Once.h.

FOnce() [3/3]

FORCEINLINE Mcro::Once::FOnce::FOnce ( FOnce && from )

inlinenoexcept

Definition at line 47 of file Once.h.

Member Function Documentation

IsTriggered()

FORCEINLINE bool Mcro::Once::FOnce::IsTriggered ( ) const

inline

Definition at line 59 of file Once.h.

operator bool()

FORCEINLINE Mcro::Once::FOnce::operator bool ( )

inline

Definition at line 52 of file Once.h.

Reset()

FORCEINLINE void Mcro::Once::FOnce::Reset ( )

inline

Definition at line 64 of file Once.h.

---

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

• Mcro/Public/Mcro/Once.h