lisyarus/psemek
1
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add std::optional serialization

Browse source
This commit is contained in:
Nikita Lisitsa 2023-05-29 13:05:19 +03:00
parent f824fd6612
commit ab20daf5ce
1 changed files with 33 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
libs/sir/include/psemek/sir/optional.hpp Normal file
View file

@ -0,0 +1,33 @@
#pragma once
#include <psemek/sir/platform.hpp>
#include <psemek/sir/stream.hpp>
#include <psemek/sir/trivial.hpp>
#include <optional>
namespace psemek::sir
{
template <typename Stream, typename T>
requires (is_ostream_v<Stream> && !is_custom_v<std::optional<T>>)
void write(Stream & s, std::optional<T> const & x)
{
write(s, static_cast<bool>(x));
if (x) write(s, *x);
}
template <typename Stream, typename T>
requires (is_istream_v<Stream> && !is_custom_v<std::optional<T>>)
void read(Stream & s, std::optional<T> & x)
{
bool initialized = false;
read(s, initialized);
if (initialized)
{
x.emplace();
read(s, *x);
}
}
}