Bitcoin Core
21.99.0
P2P Digital Currency
src
optional.h
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// Copyright (c) 2017-2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_OPTIONAL_H
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#define BITCOIN_OPTIONAL_H
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#include <optional>
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#include <utility>
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template
<
typename
T>
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using
Optional
= std::optional<T>;
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static
auto
&
nullopt
=
std::nullopt
;
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#endif // BITCOIN_OPTIONAL_H
nullopt
static auto & nullopt
Substitute for C++17 std::nullopt DEPRECATED use std::nullopt in new code.
Definition:
optional.h:18
Optional
std::optional< T > Optional
Substitute for C++17 std::optional DEPRECATED use std::optional in new code.
Definition:
optional.h:14
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