const string &getKey()const{return m_key;}; 第一个const返回值的类型 第二个const的含义:任何不会//修改数据的成员函数都应该声明为const TODO: //cout << fmt::format("kv2:{:d}", kv1) << endl; //测试未通过 //TODO: test_format_custom.cc:55:41: error: expression ‘<throw-expression>...
[with S = fmt::v8::basic_format_string<char, test_custom_object_for_log_formatter&>; typename std::enable_if<std::is_convertible<const S&, fmt::v8::basic_string_view<Char> >::value, int>::type <anonymous> = 0; Char = char; Args = {test_custom_object_for_log_formatter}]’ ...
Added a formatter for std::type_info (#3978). Thanks @matt77hias. Specialized formatter for std::basic_string types with custom traits and allocators (#3938, #3943). Thanks @dieram3. Added formatters for std::chrono::day, std::chrono::month, std::chrono::year and std::chrono::year...
fmt::vformat_to<custom_arg_formatter>(buffer, format_str, args); return fmt::to_string(buffer); } template <typename ...Args> inline std::string custom_format( fmt::string_view format_str, const Args &... args) { return custom_vformat(format_str, fmt::make_format_args(args...)...
问eigen3与libfmt >= 9.0EN版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站...
#include <fmt/format.h> struct point { double x, y; }; template <> struct fmt::formatter<point> { // Presentation format: 'f' - fixed, 'e' - exponential. char presentation = 'f'; // Parses format specifications of the form ['f' | 'e']. constexpr auto parse(format_parse_con...
class CustomArgFormatter : public fmt::BasicArgFormatter<CustomArgFormatter, char> { public: CustomArgFormatter(fmt::BasicFormatter<char, CustomArgFormatter> &f, fmt::FormatSpec &s, const char *fmt) : fmt::BasicArgFormatter<CustomArgFormatter, char>(f, s, fmt) {} void visit_int(int value...
return formatter<std::string>::format(std::format("{}", ts), ctx); } }; I.e., I provide a custom formatter which does nothing else than forwarding the UTC timestamp tostd::format. This works fine, but somehow feels unsatisfying. We doesn't provide fmt a formatter for a std::chro...
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template <typename FormatContext> auto format(color c, FormatContext& ctx) { string_view name = "unknown"; switch (c) { case color::red: name = "red"; break; case color::green: name = "green"; break; case color::blue: name = "blue"; break; } return formatter<string_view>::fo...