NAME

       std::nullopt_t - Tag type to disengage optional objects.

SYNOPSIS

   Public Types
       enum class _Construct { _Token }

   Public Member Functions
       constexpr nullopt_t (_Construct) noexcept

Detailed Description

       Tag type to disengage optional objects.

       Definition at line 68 of file optional.

Author

       Generated automatically by Doxygen for libstdc++ from the source code.