bsl::nullopt_t Struct Reference

#include <bslstl_optional.h>

Detailed Description

This trivial tag type is used to create optional objects in a disengaged state. It uses a constructor template to avoid being constructible from any braced list. See implementation notes for more information.

See bslstl_optional

Public Member Functions
template<class t_TYPE >
BSLS_KEYWORD_CONSTEXPR	nullopt_t (t_TYPE, typename enable_if< is_same< t_TYPE, BloombergLP::bslstl::Optional_NulloptConstructToken >::value, int >::type=0) BSLS_KEYWORD_NOEXCEPT

Constructor & Destructor Documentation

nullopt_t()

template<class t_TYPE >

BSLS_KEYWORD_CONSTEXPR bsl::nullopt_t::nullopt_t ( t_TYPE  , typename enable_if< is_same< t_TYPE, BloombergLP::bslstl::Optional_NulloptConstructToken >::value, int >::type  = 0  )

inlineexplicit

Create a nullopt_t object.

Note

Note that the argument is not used.

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The documentation for this struct was generated from the following file:

• bslstl_optional.h