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std::nullopt_t(3cxx) std::nullopt_t(3cxx)

NAME

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

SYNOPSIS

#include <optional>

Public Types


enum class _Construct { _Token }

Public Member Functions


constexpr nullopt_t (_Construct) noexcept

Detailed Description

Tag type to disengage optional objects.

Author

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libstdc++