This struct template sets the boolean type for the attribute named propagate_on_container_swap to bsl::false_type if the given (template parameter) ALLOCATOR_TYPE does not define such an alias (i.e., false == AllocatorTraits_HasPropOnSwap<ALLOCATOR_TYPE>::value).
Declared in <bslma_allocatortraits.h>
template<
class ALLOC,
bool = AllocatorTraits_HasPropOnSwap<ALLOC>::value>
struct AllocatorTraits_PropOnSwap
: bsl::false_type
| Name | Description |
|---|---|
bsl::false_type | Metafunction representing the boolean constant false. |
| Name | Description |
|---|---|
AllocatorTraits_PropOnSwap<ALLOC, true> | This struct template sets the boolean type for the attribute named propagate_on_container_swap to the nested type alias in the given (template parameter) ALLOCATOR_TYPE if ALLOCATOR_TYPE defines such an alias (i.e., false == AllocatorTraits_HasPropOnSwap<ALLOCATOR_TYPE>::value). |