gatchamix’s gists

gatchamix / match.cpp

Created February 27, 2024 11:17

	#include <variant>
	#include <type_traits>
	#include <iostream>
	#include <concepts>
	#include <print>

	//

	#define FWD(...) static_cast<decltype(__VA_ARGS__)&&>(__VA_ARGS__)

gatchamix / defer member func.cpp

Last active January 22, 2019 08:57

simplifies the creation of non-const member functions that defer to their const member function counterparts

gatchamix / static_polymorphism_advanced.cpp

Created October 12, 2018 10:56

additional compile-time replacements for polymorphism (more intrusive for end-user)

gatchamix / static_polymorphism.cpp

Created October 12, 2018 10:32

simulating features of dynamic polymorphism and class inheritance at compile-time

gatchamix / has_member_function.cpp

Last active October 12, 2018 09:06

faux-function to determine whether a class/struct has a function (optionally checking for a specific type signature)

gatchamix / is_constexpr.cpp

Created September 18, 2018 10:13

solutions for determining if an expression meets the standard's definition of constant-expression

	#include <utility>
	#include <string>
	#include <string_view>
	#include <type_traits>

	using namespace std::literals;

	#define version 17

	// C++11 solution

gatchamix / insertion_sort.cpp

Created August 15, 2018 23:34

fast insertion sort for non-type template parameter packs in C++2a

	static auto constexpr less = [](auto&& l, auto&& r) { return l < r; };
	static auto constexpr less_equal = [](auto&& l, auto&& r) { return l <= r; };
	static auto constexpr greater = [](auto&& l, auto&& r) { return l > r; };
	static auto constexpr greater_equal = [](auto&& l, auto&& r) { return l <= r; };

	//

	template <template <auto...> class C, auto... Vs, class Fn>
	auto constexpr sort(C<Vs...> in, Fn)
	{

gatchamix / constant.cpp

Created July 28, 2018 02:44

compile-time constant wrapper

gatchamix / tuple2a.cpp

Last active July 24, 2019 15:55

simple tuple container using C++2a

gatchamix / matrix17.cpp

Last active July 25, 2018 21:14

simple matrix container using C++17 (original idea courtesy of jdmarsh)

	#include <utility>
	#include <cstddef>
	#include <array>
	#include <type_traits>

	//

	template <class T, std::size_t Rows, std::size_t Cols = Rows>
	struct matrix
	{