This class provides a guard for managing a BslOnce for the purpose of executing a block of code (only) once.
Declared in <bsls_bslonce.h>
class BslOnceGuard;| Name | Description |
|---|---|
BslOnceGuard [constructor] | Create a guard to manage a block of code that is executed once. |
~BslOnceGuard [destructor] | Destroy this guard. |
enter | Attempt to enter the one-time block managed by once. |
leave | Exit the one-time block of code. The behavior is undefined unless the caller had previously called enter, and enter had returned true. |