fmt Namespace Reference

Namespaces
	v8
	align
	detail
	detail_exported
	literals
	safe_duration_cast
	sign

Classes
class	appender
class	basic_cstring_view
class	basic_format_arg
class	basic_format_args
class	basic_format_context
class	basic_format_parse_context
struct	basic_format_specs
class	basic_format_string
class	basic_memory_buffer
class	basic_printf_context
class	basic_printf_parse_context
struct	basic_runtime
class	basic_string_view
class	buffered_file
class	bytes
struct	compile_string
class	dynamic_format_arg_store
class	dynamic_formatter
class	format_arg_store
class	format_error
class	format_int
struct	format_to_n_result
struct	formatter
struct	formatter< bytes >
struct	formatter< Char *, Char >
struct	formatter< Char[N], Char >
struct	formatter< detail::bigint >
struct	formatter< detail::byte, Char >
struct	formatter< detail::std_string_view< Char >, Char >
struct	formatter< group_digits_view< T > >
struct	formatter< join_view< It, Sentinel, Char >, Char >
struct	formatter< long, Char >
struct	formatter< short, Char >
struct	formatter< signed char, Char >
struct	formatter< spdlog::details::dump_info< T >, char >
struct	formatter< spdlog::stopwatch >
struct	formatter< std::basic_string< Char >, Char >
struct	formatter< std::chrono::duration< Rep, Period >, Char >
struct	formatter< std::chrono::time_point< std::chrono::system_clock, Duration >, Char >
struct	formatter< std::error_code, Char >
struct	formatter< std::nullptr_t, Char >
struct	formatter< std::tm, Char >
struct	formatter< T, Char, enable_if_t< detail::is_map< T >::value &&(is_formattable< detail::value_type< T >, Char >::value||detail::has_fallback_formatter< detail::value_type< T >, Char >::value) > >
struct	formatter< T, Char, enable_if_t< detail::type_constant< T, Char >::value !=detail::type::custom_type > >
struct	formatter< T, Char, enable_if_t< fmt::is_range< T, Char >::value &&(is_formattable< detail::value_type< T >, Char >::value||detail::has_fallback_formatter< detail::value_type< T >, Char >::value) > >
struct	formatter< tuple_join_view< Char, T... >, Char >
struct	formatter< TupleT, Char, enable_if_t< fmt::is_tuple_like< TupleT >::value > >
struct	formatter< unsigned char, Char >
struct	formatter< unsigned long, Char >
struct	formatter< unsigned short, Char >
struct	formatter< void *, Char >
struct	formatter< weekday, Char >
struct	group_digits_view
struct	is_char
struct	is_char< char >
struct	is_char< char16_t >
struct	is_char< char32_t >
struct	is_char< detail::char8_type >
struct	is_char< wchar_t >
struct	is_compile_string
struct	is_contiguous
struct	is_contiguous< basic_memory_buffer< T, SIZE, Allocator > >
struct	is_contiguous< std::basic_string< Char > >
struct	is_range
struct	is_tuple_like
struct	join_view
struct	monostate
struct	printf_formatter
struct	rgb
class	text_style
struct	tuple_join_view
struct	type_identity
class	weekday
class	year_month_day

Typedefs
template<bool B, typename T = void>
using	enable_if_t = typename std::enable_if< B, T >::type
template<bool B, typename T , typename F >
using	conditional_t = typename std::conditional< B, T, F >::type
template<bool B>
using	bool_constant = std::integral_constant< bool, B >
template<typename T >
using	remove_reference_t = typename std::remove_reference< T >::type
template<typename T >
using	remove_const_t = typename std::remove_const< T >::type
template<typename T >
using	remove_cvref_t = typename std::remove_cv< remove_reference_t< T > >::type
template<typename T >
using	type_identity_t = typename type_identity< T >::type
using	string_view = basic_string_view< char >
template<typename S >
using	char_t = typename detail::char_t_impl< S >::type
using	format_parse_context = basic_format_parse_context< char >
template<typename T , typename Context >
using	has_formatter = std::is_constructible< typename Context::template formatter_type< T > >
template<typename Char >
using	buffer_context = basic_format_context< detail::buffer_appender< Char >, Char >
using	format_context = buffer_context< char >
template<typename T , typename Char = char>
using	is_formattable = bool_constant< !std::is_base_of< detail::unformattable, decltype(detail::arg_mapper< buffer_context< Char > >().map(std::declval< T >()))>::value &&!detail::has_fallback_formatter< T, Char >::value >
using	format_args = basic_format_args< format_context >
using	align_t = align::type
using	sign_t = sign::type
using	format_specs = basic_format_specs< char >
template<typename... Args>
using	format_string = basic_format_string< char, type_identity_t< Args >... >
using	memory_buffer = basic_memory_buffer< char >
template<typename It , typename Sentinel , typename Char >
using	arg_join = join_view< It, Sentinel, Char >
using	cstring_view = basic_cstring_view< char >
using	wcstring_view = basic_cstring_view< wchar_t >
template<typename Char >
using	basic_printf_context_t = basic_printf_context< detail::buffer_appender< Char >, Char >
using	printf_context = basic_printf_context_t< char >
using	wprintf_context = basic_printf_context_t< wchar_t >
using	printf_args = basic_format_args< printf_context >
using	wprintf_args = basic_format_args< wprintf_context >
template<typename Char , typename... T>
using	tuple_arg_join = tuple_join_view< Char, T... >
using	wstring_view = basic_string_view< wchar_t >
using	wformat_parse_context = basic_format_parse_context< wchar_t >
using	wformat_context = buffer_context< wchar_t >
using	wformat_args = basic_format_args< wformat_context >
using	wmemory_buffer = basic_memory_buffer< wchar_t >
template<typename... Args>
using	wformat_string = basic_format_string< wchar_t, type_identity_t< Args >... >

Enumerations
enum	color : uint32_t {   color::alice_blue = 0xF0F8FF, color::antique_white = 0xFAEBD7, color::aqua = 0x00FFFF, color::aquamarine = 0x7FFFD4,   color::azure = 0xF0FFFF, color::beige = 0xF5F5DC, color::bisque = 0xFFE4C4, color::black = 0x000000,   color::blanched_almond = 0xFFEBCD, color::blue = 0x0000FF, color::blue_violet = 0x8A2BE2, color::brown = 0xA52A2A,   color::burly_wood = 0xDEB887, color::cadet_blue = 0x5F9EA0, color::chartreuse = 0x7FFF00, color::chocolate = 0xD2691E,   color::coral = 0xFF7F50, color::cornflower_blue = 0x6495ED, color::cornsilk = 0xFFF8DC, color::crimson = 0xDC143C,   color::cyan = 0x00FFFF, color::dark_blue = 0x00008B, color::dark_cyan = 0x008B8B, color::dark_golden_rod = 0xB8860B,   color::dark_gray = 0xA9A9A9, color::dark_green = 0x006400, color::dark_khaki = 0xBDB76B, color::dark_magenta = 0x8B008B,   color::dark_olive_green = 0x556B2F, color::dark_orange = 0xFF8C00, color::dark_orchid = 0x9932CC, color::dark_red = 0x8B0000,   color::dark_salmon = 0xE9967A, color::dark_sea_green = 0x8FBC8F, color::dark_slate_blue = 0x483D8B, color::dark_slate_gray = 0x2F4F4F,   color::dark_turquoise = 0x00CED1, color::dark_violet = 0x9400D3, color::deep_pink = 0xFF1493, color::deep_sky_blue = 0x00BFFF,   color::dim_gray = 0x696969, color::dodger_blue = 0x1E90FF, color::fire_brick = 0xB22222, color::floral_white = 0xFFFAF0,   color::forest_green = 0x228B22, color::fuchsia = 0xFF00FF, color::gainsboro = 0xDCDCDC, color::ghost_white = 0xF8F8FF,   color::gold = 0xFFD700, color::golden_rod = 0xDAA520, color::gray = 0x808080, color::green = 0x008000,   color::green_yellow = 0xADFF2F, color::honey_dew = 0xF0FFF0, color::hot_pink = 0xFF69B4, color::indian_red = 0xCD5C5C,   color::indigo = 0x4B0082, color::ivory = 0xFFFFF0, color::khaki = 0xF0E68C, color::lavender = 0xE6E6FA,   color::lavender_blush = 0xFFF0F5, color::lawn_green = 0x7CFC00, color::lemon_chiffon = 0xFFFACD, color::light_blue = 0xADD8E6,   color::light_coral = 0xF08080, color::light_cyan = 0xE0FFFF, color::light_golden_rod_yellow = 0xFAFAD2, color::light_gray = 0xD3D3D3,   color::light_green = 0x90EE90, color::light_pink = 0xFFB6C1, color::light_salmon = 0xFFA07A, color::light_sea_green = 0x20B2AA,   color::light_sky_blue = 0x87CEFA, color::light_slate_gray = 0x778899, color::light_steel_blue = 0xB0C4DE, color::light_yellow = 0xFFFFE0,   color::lime = 0x00FF00, color::lime_green = 0x32CD32, color::linen = 0xFAF0E6, color::magenta = 0xFF00FF,   color::maroon = 0x800000, color::medium_aquamarine = 0x66CDAA, color::medium_blue = 0x0000CD, color::medium_orchid = 0xBA55D3,   color::medium_purple = 0x9370DB, color::medium_sea_green = 0x3CB371, color::medium_slate_blue = 0x7B68EE, color::medium_spring_green = 0x00FA9A,   color::medium_turquoise = 0x48D1CC, color::medium_violet_red = 0xC71585, color::midnight_blue = 0x191970, color::mint_cream = 0xF5FFFA,   color::misty_rose = 0xFFE4E1, color::moccasin = 0xFFE4B5, color::navajo_white = 0xFFDEAD, color::navy = 0x000080,   color::old_lace = 0xFDF5E6, color::olive = 0x808000, color::olive_drab = 0x6B8E23, color::orange = 0xFFA500,   color::orange_red = 0xFF4500, color::orchid = 0xDA70D6, color::pale_golden_rod = 0xEEE8AA, color::pale_green = 0x98FB98,   color::pale_turquoise = 0xAFEEEE, color::pale_violet_red = 0xDB7093, color::papaya_whip = 0xFFEFD5, color::peach_puff = 0xFFDAB9,   color::peru = 0xCD853F, color::pink = 0xFFC0CB, color::plum = 0xDDA0DD, color::powder_blue = 0xB0E0E6,   color::purple = 0x800080, color::rebecca_purple = 0x663399, color::red = 0xFF0000, color::rosy_brown = 0xBC8F8F,   color::royal_blue = 0x4169E1, color::saddle_brown = 0x8B4513, color::salmon = 0xFA8072, color::sandy_brown = 0xF4A460,   color::sea_green = 0x2E8B57, color::sea_shell = 0xFFF5EE, color::sienna = 0xA0522D, color::silver = 0xC0C0C0,   color::sky_blue = 0x87CEEB, color::slate_blue = 0x6A5ACD, color::slate_gray = 0x708090, color::snow = 0xFFFAFA,   color::spring_green = 0x00FF7F, color::steel_blue = 0x4682B4, color::tan = 0xD2B48C, color::teal = 0x008080,   color::thistle = 0xD8BFD8, color::tomato = 0xFF6347, color::turquoise = 0x40E0D0, color::violet = 0xEE82EE,   color::wheat = 0xF5DEB3, color::white = 0xFFFFFF, color::white_smoke = 0xF5F5F5, color::yellow = 0xFFFF00,   color::yellow_green = 0x9ACD32 }
enum	terminal_color : uint8_t {   terminal_color::black = 30, terminal_color::red, terminal_color::green, terminal_color::yellow,   terminal_color::blue, terminal_color::magenta, terminal_color::cyan, terminal_color::white,   terminal_color::bright_black = 90, terminal_color::bright_red, terminal_color::bright_green, terminal_color::bright_yellow,   terminal_color::bright_blue, terminal_color::bright_magenta, terminal_color::bright_cyan, terminal_color::bright_white }
enum	emphasis : uint8_t {   emphasis::bold = 1, emphasis::faint = 1 << 1, emphasis::italic = 1 << 2, emphasis::underline = 1 << 3,   emphasis::blink = 1 << 4, emphasis::reverse = 1 << 5, emphasis::conceal = 1 << 6, emphasis::strikethrough = 1 << 7 }
enum	presentation_type : unsigned char {   presentation_type::none, presentation_type::dec, presentation_type::oct, presentation_type::hex_lower,   presentation_type::hex_upper, presentation_type::bin_lower, presentation_type::bin_upper, presentation_type::hexfloat_lower,   presentation_type::hexfloat_upper, presentation_type::exp_lower, presentation_type::exp_upper, presentation_type::fixed_lower,   presentation_type::fixed_upper, presentation_type::general_lower, presentation_type::general_upper, presentation_type::chr,   presentation_type::string, presentation_type::pointer }
enum	{ inline_buffer_size = 500 }

Functions
std::tm	localtime (std::time_t time)
std::tm	localtime (std::chrono::time_point< std::chrono::system_clock > time_point)
std::tm	gmtime (std::time_t time)
std::tm	gmtime (std::chrono::time_point< std::chrono::system_clock > time_point)
text_style	fg (detail::color_type foreground) throw ()
text_style	bg (detail::color_type background) throw ()
text_style	operator| (emphasis lhs, emphasis rhs) throw ()
template<typename S , typename Char = char_t<S>>
void	vprint (std::FILE *f, const text_style &ts, const S &format, basic_format_args< buffer_context< type_identity_t< Char >>> args)
template<typename S , typename... Args, enable_if_t<(detail::is_string< S >::value), int > = 0>
void	print (std::FILE *f, const text_style &ts, const S &format_str, const Args &... args)
template<typename S , typename... Args, enable_if_t<(detail::is_string< S >::value), int > = 0>
void	print (const text_style &ts, const S &format_str, const Args &... args)
template<typename S , typename Char = char_t<S>>
std::basic_string< Char >	vformat (const text_style &ts, const S &format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args)
template<typename S , typename... Args, typename Char = char_t<S>>
std::basic_string< Char >	format (const text_style &ts, const S &format_str, const Args &... args)
template<typename OutputIt , typename Char , enable_if_t<(detail::is_output_iterator< OutputIt, Char >::value), int > = 0>
OutputIt	vformat_to (OutputIt out, const text_style &ts, basic_string_view< Char > format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args)
template<typename OutputIt , typename S , typename... Args, bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value&& detail::is_string<S>::value>
auto	format_to (OutputIt out, const text_style &ts, const S &format_str, Args &&... args) -> typename std::enable_if< enable, OutputIt >::type
template<typename OutputIt , typename S , typename... Args, enable_if_t<(detail::is_compiled_string< S >::value), int > = 0>
format_to_n_result< OutputIt >	format_to_n (OutputIt out, size_t n, const S &format_str, Args &&... args)
template<typename S , typename... Args, enable_if_t<(detail::is_compiled_string< S >::value), int > = 0>
size_t	formatted_size (const S &format_str, const Args &... args)
template<typename S , typename... Args, enable_if_t<(detail::is_compiled_string< S >::value), int > = 0>
void	print (std::FILE *f, const S &format_str, const Args &... args)
template<typename S , typename... Args, enable_if_t<(detail::is_compiled_string< S >::value), int > = 0>
void	print (const S &format_str, const Args &... args)
template<typename Char , enable_if_t<(is_char< Char >::value), int > = 0>
auto	to_string_view (const Char *s) -> basic_string_view< Char >
template<typename Char , typename Traits , typename Alloc >
auto	to_string_view (const std::basic_string< Char, Traits, Alloc > &s) -> basic_string_view< Char >
template<typename Char >
constexpr auto	to_string_view (basic_string_view< Char > s) -> basic_string_view< Char >
template<typename Char , enable_if_t<(!std::is_empty< detail::std_string_view< Char >>::value), int > = 0>
auto	to_string_view (detail::std_string_view< Char > s) -> basic_string_view< Char >
template<typename S , enable_if_t<(is_compile_string< S >::value), int > = 0>
constexpr auto	to_string_view (const S &s) -> basic_string_view< typename S::char_type >
template<typename Visitor , typename Context >
auto	visit_format_arg (Visitor &&vis, const basic_format_arg< Context > &arg) -> decltype(vis(0))
template<typename Context = format_context, typename... Args>
constexpr auto	make_format_args (Args &&... args) -> format_arg_store< Context, remove_cvref_t< Args >... >
template<typename Char , typename T >
auto	arg (const Char *name, const T &arg) -> detail::named_arg< Char, T >
template<typename S >
auto	runtime (const S &s) -> basic_runtime< char_t< S >>
auto	vformat (string_view fmt, format_args args) -> std::string
template<typename... T>
auto	format (format_string< T... > fmt, T &&... args) -> std::string
template<typename OutputIt , enable_if_t<(detail::is_output_iterator< OutputIt, char >::value), int > = 0>
auto	vformat_to (OutputIt out, string_view fmt, format_args args) -> OutputIt
template<typename OutputIt , typename... T, enable_if_t<(detail::is_output_iterator< OutputIt, char >::value), int > = 0>
auto	format_to (OutputIt out, format_string< T... > fmt, T &&... args) -> OutputIt
template<typename OutputIt , typename... T, enable_if_t<(detail::is_output_iterator< OutputIt, char >::value), int > = 0>
auto	vformat_to_n (OutputIt out, size_t n, string_view fmt, format_args args) -> format_to_n_result< OutputIt >
template<typename OutputIt , typename... T, enable_if_t<(detail::is_output_iterator< OutputIt, char >::value), int > = 0>
auto	format_to_n (OutputIt out, size_t n, format_string< T... > fmt, T &&... args) -> format_to_n_result< OutputIt >
template<typename... T>
auto	formatted_size (format_string< T... > fmt, T &&... args) -> size_t
void	vprint (string_view fmt, format_args args)
void	vprint (std::FILE *f, string_view fmt, format_args args)
template<typename... T>
void	print (format_string< T... > fmt, T &&... args)
template<typename... T>
void	print (std::FILE *f, format_string< T... > fmt, T &&... args)
std::system_error	vsystem_error (int error_code, string_view format_str, format_args args)
void	format_system_error (detail::buffer< char > &out, int error_code, const char *message) throw ()
void	report_system_error (int error_code, const char *message) throw ()
template<typename... Args, typename S , typename Char = char_t<S>>
auto	make_args_checked (const S &fmt, const remove_reference_t< Args > &... args) -> format_arg_store< buffer_context< Char >, remove_reference_t< Args >... >
template<typename... T>
auto	system_error (int error_code, format_string< T... > fmt, T &&... args) -> std::system_error
template<typename T >
auto	ptr (T p) -> const void *
template<typename T >
auto	ptr (const std::unique_ptr< T > &p) -> const void *
template<typename T >
auto	ptr (const std::shared_ptr< T > &p) -> const void *
template<typename T >
auto	group_digits (T value) -> group_digits_view< T >
template<typename It , typename Sentinel >
auto	join (It begin, Sentinel end, string_view sep) -> join_view< It, Sentinel >
template<typename Range >
auto	join (Range &&range, string_view sep) -> join_view< detail::iterator_t< Range >, detail::sentinel_t< Range >>
template<typename T , enable_if_t<(!std::is_integral< T >::value), int > = 0>
auto	to_string (const T &value) -> std::string
template<typename T , enable_if_t<(std::is_integral< T >::value), int > = 0>
auto	to_string (T value) -> std::string
template<typename Char , size_t SIZE>
auto	to_string (const basic_memory_buffer< Char, SIZE > &buf) -> std::basic_string< Char >
template<typename Locale , enable_if_t<(detail::is_locale< Locale >::value), int > = 0>
auto	vformat (const Locale &loc, string_view fmt, format_args args) -> std::string
template<typename Locale , typename... T, enable_if_t<(detail::is_locale< Locale >::value), int > = 0>
auto	format (const Locale &loc, format_string< T... > fmt, T &&... args) -> std::string
template<typename... T, size_t SIZE, typename Allocator >
auto	format_to (basic_memory_buffer< char, SIZE, Allocator > &buf, format_string< T... > fmt, T &&... args) -> appender
template<typename OutputIt , typename Locale , enable_if_t<(detail::is_output_iterator< OutputIt, char >::value &&detail::is_locale< Locale >::value), int > = 0>
auto	vformat_to (OutputIt out, const Locale &loc, string_view fmt, format_args args) -> OutputIt
template<typename OutputIt , typename Locale , typename... T, enable_if_t<(detail::is_output_iterator< OutputIt, char >::value &&detail::is_locale< Locale >::value), int > = 0>
auto	format_to (OutputIt out, const Locale &loc, format_string< T... > fmt, T &&... args) -> OutputIt
const std::error_category &	system_category () throw ()
template<typename Char >
void	vprint (std::basic_ostream< Char > &os, basic_string_view< Char > format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args)
template<typename S , typename... Args, typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
void	print (std::basic_ostream< Char > &os, const S &format_str, Args &&... args)
template<typename... T>
auto	make_printf_args (const T &... args) -> format_arg_store< printf_context, T... >
template<typename... T>
auto	make_wprintf_args (const T &... args) -> format_arg_store< wprintf_context, T... >
template<typename S , typename Char = char_t<S>>
auto	vsprintf (const S &fmt, basic_format_args< basic_printf_context_t< type_identity_t< Char >>> args) -> std::basic_string< Char >
template<typename S , typename... T, typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
auto	sprintf (const S &fmt, const T &... args) -> std::basic_string< Char >
template<typename S , typename Char = char_t<S>>
auto	vfprintf (std::FILE *f, const S &fmt, basic_format_args< basic_printf_context_t< type_identity_t< Char >>> args) -> int
template<typename S , typename... T, typename Char = char_t<S>>
auto	fprintf (std::FILE *f, const S &fmt, const T &... args) -> int
template<typename S , typename Char = char_t<S>>
auto	vprintf (const S &fmt, basic_format_args< basic_printf_context_t< type_identity_t< Char >>> args) -> int
template<typename S , typename... T, enable_if_t<(detail::is_string< S >::value), int > = 0>
auto	printf (const S &fmt, const T &... args) -> int
template<typename S , typename Char = char_t<S>>
auto	vfprintf (std::basic_ostream< Char > &os, const S &fmt, basic_format_args< basic_printf_context_t< type_identity_t< Char >>> args) -> int
template<typename S , typename... T, typename Char = char_t<S>>
auto	fprintf (std::basic_ostream< Char > &os, const S &fmt, const T &... args) -> int
template<typename... T>
auto	join (const std::tuple< T... > &tuple, string_view sep) -> tuple_join_view< char, T... >
template<typename... T>
auto	join (const std::tuple< T... > &tuple, basic_string_view< wchar_t > sep) -> tuple_join_view< wchar_t, T... >
template<typename T >
auto	join (std::initializer_list< T > list, string_view sep) -> join_view< const T *, const T * >
template<typename... Args>
constexpr format_arg_store< wformat_context, Args... >	make_wformat_args (const Args &... args)
constexpr auto	operator""_format (const wchar_t *s, size_t n) -> detail::udl_formatter< wchar_t >
template<typename It , typename Sentinel >
auto	join (It begin, Sentinel end, wstring_view sep) -> join_view< It, Sentinel, wchar_t >
template<typename Range >
auto	join (Range &&range, wstring_view sep) -> join_view< detail::iterator_t< Range >, detail::sentinel_t< Range >, wchar_t >
template<typename T >
auto	join (std::initializer_list< T > list, wstring_view sep) -> join_view< const T *, const T *, wchar_t >
template<typename Char , enable_if_t<(!std::is_same< Char, char >::value), int > = 0>
auto	vformat (basic_string_view< Char > format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args) -> std::basic_string< Char >
template<typename S , typename... Args, typename Char = char_t<S>, enable_if_t<(!std::is_same< Char, char >::value), int > = 0>
auto	format (const S &format_str, Args &&... args) -> std::basic_string< Char >
template<typename Locale , typename S , typename Char = char_t<S>, enable_if_t<(detail::is_locale< Locale >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	vformat (const Locale &loc, const S &format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args) -> std::basic_string< Char >
template<typename Locale , typename S , typename... Args, typename Char = char_t<S>, enable_if_t<(detail::is_locale< Locale >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	format (const Locale &loc, const S &format_str, Args &&... args) -> std::basic_string< Char >
template<typename OutputIt , typename S , typename Char = char_t<S>, enable_if_t<(detail::is_output_iterator< OutputIt, Char >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	vformat_to (OutputIt out, const S &format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args) -> OutputIt
template<typename OutputIt , typename S , typename... Args, typename Char = char_t<S>, enable_if_t<(detail::is_output_iterator< OutputIt, Char >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	format_to (OutputIt out, const S &fmt, Args &&... args) -> OutputIt
template<typename S , typename... Args, typename Char , size_t SIZE, typename Allocator , enable_if_t<(detail::is_string< S >::value), int > = 0>
auto	format_to (basic_memory_buffer< Char, SIZE, Allocator > &buf, const S &format_str, Args &&... args) -> typename buffer_context< Char >::iterator
template<typename Locale , typename S , typename OutputIt , typename... Args, typename Char = char_t<S>, enable_if_t<(detail::is_output_iterator< OutputIt, Char >::value &&detail::is_locale< Locale >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	vformat_to (OutputIt out, const Locale &loc, const S &format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args) -> OutputIt
template<typename OutputIt , typename Locale , typename S , typename... Args, typename Char = char_t<S>, bool enable = detail::is_output_iterator<OutputIt, Char>::value&& detail::is_locale<Locale>::value&& detail::is_exotic_char<Char>::value>
auto	format_to (OutputIt out, const Locale &loc, const S &format_str, Args &&... args) -> typename std::enable_if< enable, OutputIt >::type
template<typename OutputIt , typename Char , typename... Args, enable_if_t<(detail::is_output_iterator< OutputIt, Char >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	vformat_to_n (OutputIt out, size_t n, basic_string_view< Char > format_str, basic_format_args< buffer_context< type_identity_t< Char >>> args) -> format_to_n_result< OutputIt >
template<typename OutputIt , typename S , typename... Args, typename Char = char_t<S>, enable_if_t<(detail::is_output_iterator< OutputIt, Char >::value &&detail::is_exotic_char< Char >::value), int > = 0>
auto	format_to_n (OutputIt out, size_t n, const S &fmt, const Args &... args) -> format_to_n_result< OutputIt >
template<typename S , typename... Args, typename Char = char_t<S>, enable_if_t<(detail::is_exotic_char< Char >::value), int > = 0>
auto	formatted_size (const S &fmt, Args &&... args) -> size_t
void	vprint (std::FILE *f, wstring_view fmt, wformat_args args)
void	vprint (wstring_view fmt, wformat_args args)
template<typename... T>
void	print (std::FILE *f, wformat_string< T... > fmt, T &&... args)
template<typename... T>
void	print (wformat_string< T... > fmt, T &&... args)
template<typename T >
auto	to_wstring (const T &value) -> std::wstring