#include "details/detector.hpp"
Go to the source code of this file.
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| template<class Default , template< class... > class Op, class... Args> |
| using | bsl::detected_or = details::detector< Default, void, Op, Args... > |
| | The alias template detected_or is an alias for an unspecified class type with two public member typedefs value_t and type, which are defined as follows: More...
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template<typename Default , template< class... > class Op, typename... Args> |
| using | bsl::detected_or_t = typename details::detector< Default, void, Op, Args... >::type |
| | a helper that reduces the verbosity of bsl::detected_or
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- Copyright
- Copyright (C) 2020 Assured Information Security, Inc.
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◆ detected_or
template<class Default , template< class... > class Op, class... Args>
The alias template detected_or is an alias for an unspecified class type with two public member typedefs value_t and type, which are defined as follows:
- If the template-id OP<ARGS...> denotes a valid type, then value_t is an alias for bsl::true_type, and type is an alias for OP<ARGS...>;
- Otherwise, value_t is an alias for bsl::false_type and type is an alias for DEFAULT.
