RESTinio
optional.hpp
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1/*
2 restinio
3*/
4
11#pragma once
12
13#if defined(RESTINIO_EXTERNAL_OPTIONAL_LITE)
14 #include <nonstd/optional.hpp>
15#else
17#endif
18
19namespace restinio
20{
21 template< class T >
23
24 using nonstd::nullopt;
26
27} /* namespace restinio */
const nullopt_t nullopt((nullopt_t::init()))
disengaged state tag
Definition: optional.hpp:890