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).

Synopsis

Declared in <bslma_allocatortraits.h>

template<
    class ALLOC,
    bool = AllocatorTraits_HasPropOnSwap<ALLOC>::value>
struct AllocatorTraits_PropOnSwap
    : bsl::false_type

Base Classes

Name

Description

bsl::false_type

Metafunction representing the boolean constant false.

Specializations

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).

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