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Designing a Simple and Effective ScopeGuard with C 11
ScopeGuard is a programming idiom that ensures the execution of a cleanup action when a given scope is exited, regardless of whether it exits normally or through an exception. This article introduces a simple yet effective implementation of ScopeGuard using C 11 features.
Overview of ScopeGuard
ScopeGuard is typically implemented as a class with a constructor that takes a lambda expression representing the cleanup action. The class's destructor invokes the cleanup action when the scope exits. This ensures that the cleanup action is executed even if an exception is thrown within the scope.
C 11 Idioms in Implementation
The provided C 11 implementation employs several modern idioms to enhance its functionality:
Simplicity and Completeness
While other ScopeGuard implementations may offer more complex features, this version focuses on simplicity and completeness. The implementation covers both the basic and advanced scenarios where exceptions might arise, making it a versatile tool for ensuring resource cleanup in various contexts.
Conclusion
The presented ScopeGuard implementation leverages C 11 idioms to provide an efficient, flexible, and user-friendly approach to ensuring cleanup actions. Its focus on simplicity and completeness makes it a practical solution for handling resource management tasks both in normal and exceptional situations.
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