For compilers that support a deprecation annotation, this empty struct has a static check function that yields a deprecation warning when called (including within an unevaluated context) if this class is instantiated with a true argument, but not if instantiated with a false argument.
Declared in <bslma_usesbslmaallocator.h>
template<bool>
struct UsesBslmaAllocator_DeprecatedIf;| Name | Description |
|---|---|
check | Ignore the specified message and return a char. Declared but not defined; for metaprogramming only. |
| Name | Description |
|---|---|
UsesBslmaAllocator_DeprecatedIf<true> | Using this specialization of UsesBslmaAllocator_DeprecatedIf yields a deprecation warning on compilers that support a deprecation annotation. |