qrealka

template<class T>
auto serialize_imp(std::ostream& os, T const& obj, int)
    -> decltype(os << obj, void())
{
  os << obj;
}

template<class T>
auto serialize_imp(std::ostream& os, T const& obj, long)
    -> decltype(obj.stream(os), void())

qrealka

// https://vittorioromeo.info/index/blog/capturing_perfectly_forwarded_objects_in_lambdas.html
#include <iostream>
#include <functional>

#define FWD(...) std::forward<decltype(__VA_ARGS__)>(__VA_ARGS__)

namespace impl
{

template <typename... Ts>

qrealka

 #include <cstddef>

template<typename T1, typename T2>
struct StaticPair {
    T1 first;
    T2 second;
    friend constexpr bool operator<(const StaticPair& lhs, const StaticPair& rhs) noexcept {
        return lhs.first < rhs.first;
    }
    

qrealka

tomMath vs GMP vs BSD http://tcl.2662.n7.nabble.com/tommath-is-slow-td64598.html
arp vs openssl vs libtommath https://gitlab.haskell.org/ghc/ghc/wikis/replacing-gmp-notes/performance-measurements
why arprec https://mail.haskell.org/pipermail/glasgow-haskell-users/2006-September/010963.html
http://www.wilfred.me.uk/blog/2014/10/20/the-fastest-bigint-in-the-west/
https://github.com/gcc-mirror/gcc/tree/master/libdecnumber

qrealka

#!/usr/bin/env bash
#
# Runs clang-format on changed regions before commit.
#
# To install this, copy it to .git/hooks/pre-commit in your repo.
# Remaining installation checks/instructions will be printed when you commit.
#

read -d '' help <<- EOF
  This repository requires you to install the git clang-format command.

qrealka

#ifndef MINIPOOL_H
#define MINIPOOL_H

#include <cassert>
#include <cstddef>
#include <memory>
#include <new>
#include <utility>

/*

qrealka

std::tie(a, b) = std::minmax({a, b});
std::tie(a, b) = std::minmax(+a, +b);

qrealka

if (static bool do_once = true; std::exchange(do_once, false)) {
}

if (static bool do_once; !std::exchange(do_once, false)) {
}

struct Once {
    bool b = true;
    explicit operator bool() { return std::exchange(b, false); }
};

qrealka

#include <immintrin.h>

// https://stackoverflow.com/a/8456388
// https://docs.microsoft.com/en-us/cpp/intrinsics/div128?view=vs-2019

#pragma code_seg(".text")
const unsigned char sdiv128Data[] =
{
  0x48, 0x89, 0xD0, // mov rax,rdx
  0x48, 0x89, 0xCA, // mov rdx,rcx

qrealka

template<typename T>
class Badge {
    friend T;
    Badge() {}
};

class Device;

class VFS {
public: