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Add random::generator formatter

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This commit is contained in:
Nikita Lisitsa 2026-08-14 16:34:20 +03:00
parent c96766659c
commit d42639edba
1 changed files with 22 additions and 0 deletions
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22
libs/random/include/psemek/random/generator.hpp
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@ -2,6 +2,7 @@
#include <cstdint> #include <cstdint>
#include <limits> #include <limits>
#include <format>
#include <psemek/random/device.hpp> #include <psemek/random/device.hpp>
@ -66,6 +67,9 @@ namespace psemek::random
read(stream, gen.inc_); read(stream, gen.inc_);
} }
template <typename T, typename Char>
friend struct std::formatter;
private: private:
std::uint64_t state_ = 0; std::uint64_t state_ = 0;
std::uint64_t inc_ = 0; std::uint64_t inc_ = 0;
@ -78,3 +82,21 @@ namespace psemek::random
}; };
} }
namespace std
{
template <typename Char>
struct formatter<::psemek::random::generator, Char>
: formatter<std::uint64_t>
{
using base = formatter<std::uint64_t>;
template <typename FormatContext>
auto format(::psemek::random::generator const & rng, FormatContext & ctx) const
{
return std::format_to(ctx.out(), "({}, {})", rng.state_, rng.inc_);
}
};
}