std::nullopt_t

Tag type to disengage optional objects.

Provided by: libstdc++-12-doc (Version: 12.3.0-1ubuntu1~22.04.3)
Source: gcc-12
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SYNOPSIS

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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