Created
February 10, 2022 18:13
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| #pragma once | |
| #include <iostream> | |
| #include <string_view> | |
| #include <format> | |
| #include <utility> | |
| // 1 : intermediate string | |
| template <typename ...ARGS> | |
| void print(std::string_view format, ARGS &&...args) | |
| { | |
| std::cout << std::format(format,std::forward<ARGS>(args)...); | |
| } | |
| // 2 : straight to cout | |
| template <typename ...ARGS> | |
| void print(std::string_view format, ARGS &&...args) | |
| { | |
| std::ostream_iterator<char> cout(std::cout); | |
| std::format_to(cout,format,std::forward<ARGS>(args)...); | |
| } | |
| // 3 intermediate string, array of references | |
| template <typename ...ARGS> | |
| void print(std::string_view format, ARGS &&...args) | |
| { | |
| auto const &vargs=std::make_format_args(args...); | |
| std::cout << std::vformat(format,vargs); | |
| } | |
| // 4 straight to cout, array of references (closest to fmt::print) | |
| template <typename ...ARGS> | |
| void print(std::string_view format, ARGS &&...args) | |
| { | |
| using iterator = std::ostream_iterator<char>; | |
| using context = std::basic_format_context<iterator, char>; | |
| iterator cout(std::cout); | |
| auto const &vargs=std::make_format_args<context>(args..); | |
| std::vformat_to(cout,format,vargs); | |
| } |
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