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-rw-r--r--include/spdlog/fmt/bundled/compile.h701
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diff --git a/include/spdlog/fmt/bundled/compile.h b/include/spdlog/fmt/bundled/compile.h
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--- a/include/spdlog/fmt/bundled/compile.h
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@@ -1,701 +0,0 @@
-// Formatting library for C++ - experimental format string compilation
-//
-// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_COMPILE_H_
-#define FMT_COMPILE_H_
-
-#include <vector>
-
-#include "format.h"
-
-FMT_BEGIN_NAMESPACE
-namespace detail {
-
-// A compile-time string which is compiled into fast formatting code.
-class compiled_string {};
-
-template <typename S>
-struct is_compiled_string : std::is_base_of<compiled_string, S> {};
-
-/**
- \rst
- Converts a string literal *s* into a format string that will be parsed at
- compile time and converted into efficient formatting code. Requires C++17
- ``constexpr if`` compiler support.
-
- **Example**::
-
- // Converts 42 into std::string using the most efficient method and no
- // runtime format string processing.
- std::string s = fmt::format(FMT_COMPILE("{}"), 42);
- \endrst
- */
-#define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::detail::compiled_string)
-
-template <typename T, typename... Tail>
-const T& first(const T& value, const Tail&...) {
- return value;
-}
-
-// Part of a compiled format string. It can be either literal text or a
-// replacement field.
-template <typename Char> struct format_part {
- enum class kind { arg_index, arg_name, text, replacement };
-
- struct replacement {
- arg_ref<Char> arg_id;
- dynamic_format_specs<Char> specs;
- };
-
- kind part_kind;
- union value {
- int arg_index;
- basic_string_view<Char> str;
- replacement repl;
-
- FMT_CONSTEXPR value(int index = 0) : arg_index(index) {}
- FMT_CONSTEXPR value(basic_string_view<Char> s) : str(s) {}
- FMT_CONSTEXPR value(replacement r) : repl(r) {}
- } val;
- // Position past the end of the argument id.
- const Char* arg_id_end = nullptr;
-
- FMT_CONSTEXPR format_part(kind k = kind::arg_index, value v = {})
- : part_kind(k), val(v) {}
-
- static FMT_CONSTEXPR format_part make_arg_index(int index) {
- return format_part(kind::arg_index, index);
- }
- static FMT_CONSTEXPR format_part make_arg_name(basic_string_view<Char> name) {
- return format_part(kind::arg_name, name);
- }
- static FMT_CONSTEXPR format_part make_text(basic_string_view<Char> text) {
- return format_part(kind::text, text);
- }
- static FMT_CONSTEXPR format_part make_replacement(replacement repl) {
- return format_part(kind::replacement, repl);
- }
-};
-
-template <typename Char> struct part_counter {
- unsigned num_parts = 0;
-
- FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
- if (begin != end) ++num_parts;
- }
-
- FMT_CONSTEXPR int on_arg_id() { return ++num_parts, 0; }
- FMT_CONSTEXPR int on_arg_id(int) { return ++num_parts, 0; }
- FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) {
- return ++num_parts, 0;
- }
-
- FMT_CONSTEXPR void on_replacement_field(int, const Char*) {}
-
- FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
- const Char* end) {
- // Find the matching brace.
- unsigned brace_counter = 0;
- for (; begin != end; ++begin) {
- if (*begin == '{') {
- ++brace_counter;
- } else if (*begin == '}') {
- if (brace_counter == 0u) break;
- --brace_counter;
- }
- }
- return begin;
- }
-
- FMT_CONSTEXPR void on_error(const char*) {}
-};
-
-// Counts the number of parts in a format string.
-template <typename Char>
-FMT_CONSTEXPR unsigned count_parts(basic_string_view<Char> format_str) {
- part_counter<Char> counter;
- parse_format_string<true>(format_str, counter);
- return counter.num_parts;
-}
-
-template <typename Char, typename PartHandler>
-class format_string_compiler : public error_handler {
- private:
- using part = format_part<Char>;
-
- PartHandler handler_;
- part part_;
- basic_string_view<Char> format_str_;
- basic_format_parse_context<Char> parse_context_;
-
- public:
- FMT_CONSTEXPR format_string_compiler(basic_string_view<Char> format_str,
- PartHandler handler)
- : handler_(handler),
- format_str_(format_str),
- parse_context_(format_str) {}
-
- FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) {
- if (begin != end)
- handler_(part::make_text({begin, to_unsigned(end - begin)}));
- }
-
- FMT_CONSTEXPR int on_arg_id() {
- part_ = part::make_arg_index(parse_context_.next_arg_id());
- return 0;
- }
-
- FMT_CONSTEXPR int on_arg_id(int id) {
- parse_context_.check_arg_id(id);
- part_ = part::make_arg_index(id);
- return 0;
- }
-
- FMT_CONSTEXPR int on_arg_id(basic_string_view<Char> id) {
- part_ = part::make_arg_name(id);
- return 0;
- }
-
- FMT_CONSTEXPR void on_replacement_field(int, const Char* ptr) {
- part_.arg_id_end = ptr;
- handler_(part_);
- }
-
- FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
- const Char* end) {
- auto repl = typename part::replacement();
- dynamic_specs_handler<basic_format_parse_context<Char>> handler(
- repl.specs, parse_context_);
- auto it = parse_format_specs(begin, end, handler);
- if (*it != '}') on_error("missing '}' in format string");
- repl.arg_id = part_.part_kind == part::kind::arg_index
- ? arg_ref<Char>(part_.val.arg_index)
- : arg_ref<Char>(part_.val.str);
- auto part = part::make_replacement(repl);
- part.arg_id_end = begin;
- handler_(part);
- return it;
- }
-};
-
-// Compiles a format string and invokes handler(part) for each parsed part.
-template <bool IS_CONSTEXPR, typename Char, typename PartHandler>
-FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str,
- PartHandler handler) {
- parse_format_string<IS_CONSTEXPR>(
- format_str,
- format_string_compiler<Char, PartHandler>(format_str, handler));
-}
-
-template <typename OutputIt, typename Context, typename Id>
-void format_arg(
- basic_format_parse_context<typename Context::char_type>& parse_ctx,
- Context& ctx, Id arg_id) {
- ctx.advance_to(visit_format_arg(
- arg_formatter<OutputIt, typename Context::char_type>(ctx, &parse_ctx),
- ctx.arg(arg_id)));
-}
-
-// vformat_to is defined in a subnamespace to prevent ADL.
-namespace cf {
-template <typename Context, typename OutputIt, typename CompiledFormat>
-auto vformat_to(OutputIt out, CompiledFormat& cf,
- basic_format_args<Context> args) -> typename Context::iterator {
- using char_type = typename Context::char_type;
- basic_format_parse_context<char_type> parse_ctx(
- to_string_view(cf.format_str_));
- Context ctx(out, args);
-
- const auto& parts = cf.parts();
- for (auto part_it = std::begin(parts); part_it != std::end(parts);
- ++part_it) {
- const auto& part = *part_it;
- const auto& value = part.val;
-
- using format_part_t = format_part<char_type>;
- switch (part.part_kind) {
- case format_part_t::kind::text: {
- const auto text = value.str;
- auto output = ctx.out();
- auto&& it = reserve(output, text.size());
- it = std::copy_n(text.begin(), text.size(), it);
- ctx.advance_to(output);
- break;
- }
-
- case format_part_t::kind::arg_index:
- advance_to(parse_ctx, part.arg_id_end);
- detail::format_arg<OutputIt>(parse_ctx, ctx, value.arg_index);
- break;
-
- case format_part_t::kind::arg_name:
- advance_to(parse_ctx, part.arg_id_end);
- detail::format_arg<OutputIt>(parse_ctx, ctx, value.str);
- break;
-
- case format_part_t::kind::replacement: {
- const auto& arg_id_value = value.repl.arg_id.val;
- const auto arg = value.repl.arg_id.kind == arg_id_kind::index
- ? ctx.arg(arg_id_value.index)
- : ctx.arg(arg_id_value.name);
-
- auto specs = value.repl.specs;
-
- handle_dynamic_spec<width_checker>(specs.width, specs.width_ref, ctx);
- handle_dynamic_spec<precision_checker>(specs.precision,
- specs.precision_ref, ctx);
-
- error_handler h;
- numeric_specs_checker<error_handler> checker(h, arg.type());
- if (specs.align == align::numeric) checker.require_numeric_argument();
- if (specs.sign != sign::none) checker.check_sign();
- if (specs.alt) checker.require_numeric_argument();
- if (specs.precision >= 0) checker.check_precision();
-
- advance_to(parse_ctx, part.arg_id_end);
- ctx.advance_to(
- visit_format_arg(arg_formatter<OutputIt, typename Context::char_type>(
- ctx, nullptr, &specs),
- arg));
- break;
- }
- }
- }
- return ctx.out();
-}
-} // namespace cf
-
-struct basic_compiled_format {};
-
-template <typename S, typename = void>
-struct compiled_format_base : basic_compiled_format {
- using char_type = char_t<S>;
- using parts_container = std::vector<detail::format_part<char_type>>;
-
- parts_container compiled_parts;
-
- explicit compiled_format_base(basic_string_view<char_type> format_str) {
- compile_format_string<false>(format_str,
- [this](const format_part<char_type>& part) {
- compiled_parts.push_back(part);
- });
- }
-
- const parts_container& parts() const { return compiled_parts; }
-};
-
-template <typename Char, unsigned N> struct format_part_array {
- format_part<Char> data[N] = {};
- FMT_CONSTEXPR format_part_array() = default;
-};
-
-template <typename Char, unsigned N>
-FMT_CONSTEXPR format_part_array<Char, N> compile_to_parts(
- basic_string_view<Char> format_str) {
- format_part_array<Char, N> parts;
- unsigned counter = 0;
- // This is not a lambda for compatibility with older compilers.
- struct {
- format_part<Char>* parts;
- unsigned* counter;
- FMT_CONSTEXPR void operator()(const format_part<Char>& part) {
- parts[(*counter)++] = part;
- }
- } collector{parts.data, &counter};
- compile_format_string<true>(format_str, collector);
- if (counter < N) {
- parts.data[counter] =
- format_part<Char>::make_text(basic_string_view<Char>());
- }
- return parts;
-}
-
-template <typename T> constexpr const T& constexpr_max(const T& a, const T& b) {
- return (a < b) ? b : a;
-}
-
-template <typename S>
-struct compiled_format_base<S, enable_if_t<is_compile_string<S>::value>>
- : basic_compiled_format {
- using char_type = char_t<S>;
-
- FMT_CONSTEXPR explicit compiled_format_base(basic_string_view<char_type>) {}
-
-// Workaround for old compilers. Format string compilation will not be
-// performed there anyway.
-#if FMT_USE_CONSTEXPR
- static FMT_CONSTEXPR_DECL const unsigned num_format_parts =
- constexpr_max(count_parts(to_string_view(S())), 1u);
-#else
- static const unsigned num_format_parts = 1;
-#endif
-
- using parts_container = format_part<char_type>[num_format_parts];
-
- const parts_container& parts() const {
- static FMT_CONSTEXPR_DECL const auto compiled_parts =
- compile_to_parts<char_type, num_format_parts>(
- detail::to_string_view(S()));
- return compiled_parts.data;
- }
-};
-
-template <typename S, typename... Args>
-class compiled_format : private compiled_format_base<S> {
- public:
- using typename compiled_format_base<S>::char_type;
-
- private:
- basic_string_view<char_type> format_str_;
-
- template <typename Context, typename OutputIt, typename CompiledFormat>
- friend auto cf::vformat_to(OutputIt out, CompiledFormat& cf,
- basic_format_args<Context> args) ->
- typename Context::iterator;
-
- public:
- compiled_format() = delete;
- explicit constexpr compiled_format(basic_string_view<char_type> format_str)
- : compiled_format_base<S>(format_str), format_str_(format_str) {}
-};
-
-#ifdef __cpp_if_constexpr
-template <typename... Args> struct type_list {};
-
-// Returns a reference to the argument at index N from [first, rest...].
-template <int N, typename T, typename... Args>
-constexpr const auto& get([[maybe_unused]] const T& first,
- [[maybe_unused]] const Args&... rest) {
- static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
- if constexpr (N == 0)
- return first;
- else
- return get<N - 1>(rest...);
-}
-
-template <int N, typename> struct get_type_impl;
-
-template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
- using type = remove_cvref_t<decltype(get<N>(std::declval<Args>()...))>;
-};
-
-template <int N, typename T>
-using get_type = typename get_type_impl<N, T>::type;
-
-template <typename T> struct is_compiled_format : std::false_type {};
-
-template <typename Char> struct text {
- basic_string_view<Char> data;
- using char_type = Char;
-
- template <typename OutputIt, typename... Args>
- OutputIt format(OutputIt out, const Args&...) const {
- return write<Char>(out, data);
- }
-};
-
-template <typename Char>
-struct is_compiled_format<text<Char>> : std::true_type {};
-
-template <typename Char>
-constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
- size_t size) {
- return {{&s[pos], size}};
-}
-
-template <typename Char> struct code_unit {
- Char value;
- using char_type = Char;
-
- template <typename OutputIt, typename... Args>
- OutputIt format(OutputIt out, const Args&...) const {
- return write<Char>(out, value);
- }
-};
-
-template <typename Char>
-struct is_compiled_format<code_unit<Char>> : std::true_type {};
-
-// A replacement field that refers to argument N.
-template <typename Char, typename T, int N> struct field {
- using char_type = Char;
-
- template <typename OutputIt, typename... Args>
- OutputIt format(OutputIt out, const Args&... args) const {
- // This ensures that the argument type is convertile to `const T&`.
- const T& arg = get<N>(args...);
- return write<Char>(out, arg);
- }
-};
-
-template <typename Char, typename T, int N>
-struct is_compiled_format<field<Char, T, N>> : std::true_type {};
-
-// A replacement field that refers to argument N and has format specifiers.
-template <typename Char, typename T, int N> struct spec_field {
- using char_type = Char;
- mutable formatter<T, Char> fmt;
-
- template <typename OutputIt, typename... Args>
- OutputIt format(OutputIt out, const Args&... args) const {
- // This ensures that the argument type is convertile to `const T&`.
- const T& arg = get<N>(args...);
- const auto& vargs =
- make_format_args<basic_format_context<OutputIt, Char>>(args...);
- basic_format_context<OutputIt, Char> ctx(out, vargs);
- return fmt.format(arg, ctx);
- }
-};
-
-template <typename Char, typename T, int N>
-struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
-
-template <typename L, typename R> struct concat {
- L lhs;
- R rhs;
- using char_type = typename L::char_type;
-
- template <typename OutputIt, typename... Args>
- OutputIt format(OutputIt out, const Args&... args) const {
- out = lhs.format(out, args...);
- return rhs.format(out, args...);
- }
-};
-
-template <typename L, typename R>
-struct is_compiled_format<concat<L, R>> : std::true_type {};
-
-template <typename L, typename R>
-constexpr concat<L, R> make_concat(L lhs, R rhs) {
- return {lhs, rhs};
-}
-
-struct unknown_format {};
-
-template <typename Char>
-constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
- for (size_t size = str.size(); pos != size; ++pos) {
- if (str[pos] == '{' || str[pos] == '}') break;
- }
- return pos;
-}
-
-template <typename Args, size_t POS, int ID, typename S>
-constexpr auto compile_format_string(S format_str);
-
-template <typename Args, size_t POS, int ID, typename T, typename S>
-constexpr auto parse_tail(T head, S format_str) {
- if constexpr (POS !=
- basic_string_view<typename S::char_type>(format_str).size()) {
- constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
- if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
- unknown_format>())
- return tail;
- else
- return make_concat(head, tail);
- } else {
- return head;
- }
-}
-
-template <typename T, typename Char> struct parse_specs_result {
- formatter<T, Char> fmt;
- size_t end;
- int next_arg_id;
-};
-
-template <typename T, typename Char>
-constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
- size_t pos, int arg_id) {
- str.remove_prefix(pos);
- auto ctx = basic_format_parse_context<Char>(str, {}, arg_id + 1);
- auto f = formatter<T, Char>();
- auto end = f.parse(ctx);
- return {f, pos + (end - str.data()) + 1, ctx.next_arg_id()};
-}
-
-// Compiles a non-empty format string and returns the compiled representation
-// or unknown_format() on unrecognized input.
-template <typename Args, size_t POS, int ID, typename S>
-constexpr auto compile_format_string(S format_str) {
- using char_type = typename S::char_type;
- constexpr basic_string_view<char_type> str = format_str;
- if constexpr (str[POS] == '{') {
- if (POS + 1 == str.size())
- throw format_error("unmatched '{' in format string");
- if constexpr (str[POS + 1] == '{') {
- return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
- } else if constexpr (str[POS + 1] == '}') {
- using type = get_type<ID, Args>;
- return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
- format_str);
- } else if constexpr (str[POS + 1] == ':') {
- using type = get_type<ID, Args>;
- constexpr auto result = parse_specs<type>(str, POS + 2, ID);
- return parse_tail<Args, result.end, result.next_arg_id>(
- spec_field<char_type, type, ID>{result.fmt}, format_str);
- } else {
- return unknown_format();
- }
- } else if constexpr (str[POS] == '}') {
- if (POS + 1 == str.size())
- throw format_error("unmatched '}' in format string");
- return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
- } else {
- constexpr auto end = parse_text(str, POS + 1);
- if constexpr (end - POS > 1) {
- return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
- format_str);
- } else {
- return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
- format_str);
- }
- }
-}
-
-template <typename... Args, typename S,
- FMT_ENABLE_IF(is_compile_string<S>::value ||
- detail::is_compiled_string<S>::value)>
-constexpr auto compile(S format_str) {
- constexpr basic_string_view<typename S::char_type> str = format_str;
- if constexpr (str.size() == 0) {
- return detail::make_text(str, 0, 0);
- } else {
- constexpr auto result =
- detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
- format_str);
- if constexpr (std::is_same<remove_cvref_t<decltype(result)>,
- detail::unknown_format>()) {
- return detail::compiled_format<S, Args...>(to_string_view(format_str));
- } else {
- return result;
- }
- }
-}
-#else
-template <typename... Args, typename S,
- FMT_ENABLE_IF(is_compile_string<S>::value)>
-constexpr auto compile(S format_str) -> detail::compiled_format<S, Args...> {
- return detail::compiled_format<S, Args...>(to_string_view(format_str));
-}
-#endif // __cpp_if_constexpr
-
-// Compiles the format string which must be a string literal.
-template <typename... Args, typename Char, size_t N>
-auto compile(const Char (&format_str)[N])
- -> detail::compiled_format<const Char*, Args...> {
- return detail::compiled_format<const Char*, Args...>(
- basic_string_view<Char>(format_str, N - 1));
-}
-} // namespace detail
-
-// DEPRECATED! use FMT_COMPILE instead.
-template <typename... Args>
-FMT_DEPRECATED auto compile(const Args&... args)
- -> decltype(detail::compile(args...)) {
- return detail::compile(args...);
-}
-
-#if FMT_USE_CONSTEXPR
-# ifdef __cpp_if_constexpr
-
-template <typename CompiledFormat, typename... Args,
- typename Char = typename CompiledFormat::char_type,
- FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
-FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
- const Args&... args) {
- basic_memory_buffer<Char> buffer;
- cf.format(detail::buffer_appender<Char>(buffer), args...);
- return to_string(buffer);
-}
-
-template <typename OutputIt, typename CompiledFormat, typename... Args,
- FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
-OutputIt format_to(OutputIt out, const CompiledFormat& cf,
- const Args&... args) {
- return cf.format(out, args...);
-}
-# endif // __cpp_if_constexpr
-#endif // FMT_USE_CONSTEXPR
-
-template <typename CompiledFormat, typename... Args,
- typename Char = typename CompiledFormat::char_type,
- FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
- CompiledFormat>::value)>
-std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
- basic_memory_buffer<Char> buffer;
- using context = buffer_context<Char>;
- detail::cf::vformat_to<context>(detail::buffer_appender<Char>(buffer), cf,
- make_format_args<context>(args...));
- return to_string(buffer);
-}
-
-template <typename S, typename... Args,
- FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
- Args&&... args) {
-#ifdef __cpp_if_constexpr
- if constexpr (std::is_same<typename S::char_type, char>::value) {
- constexpr basic_string_view<typename S::char_type> str = S();
- if (str.size() == 2 && str[0] == '{' && str[1] == '}')
- return fmt::to_string(detail::first(args...));
- }
-#endif
- constexpr auto compiled = detail::compile<Args...>(S());
- return format(compiled, std::forward<Args>(args)...);
-}
-
-template <typename OutputIt, typename CompiledFormat, typename... Args,
- FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
- CompiledFormat>::value)>
-OutputIt format_to(OutputIt out, const CompiledFormat& cf,
- const Args&... args) {
- using char_type = typename CompiledFormat::char_type;
- using context = format_context_t<OutputIt, char_type>;
- return detail::cf::vformat_to<context>(out, cf,
- make_format_args<context>(args...));
-}
-
-template <typename OutputIt, typename S, typename... Args,
- FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-OutputIt format_to(OutputIt out, const S&, const Args&... args) {
- constexpr auto compiled = detail::compile<Args...>(S());
- return format_to(out, compiled, args...);
-}
-
-template <typename OutputIt, typename CompiledFormat, typename... Args>
-auto format_to_n(OutputIt out, size_t n, const CompiledFormat& cf,
- const Args&... args) ->
- typename std::enable_if<
- detail::is_output_iterator<OutputIt,
- typename CompiledFormat::char_type>::value &&
- std::is_base_of<detail::basic_compiled_format,
- CompiledFormat>::value,
- format_to_n_result<OutputIt>>::type {
- auto it =
- format_to(detail::truncating_iterator<OutputIt>(out, n), cf, args...);
- return {it.base(), it.count()};
-}
-
-template <typename OutputIt, typename S, typename... Args,
- FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
-format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n, const S&,
- const Args&... args) {
- constexpr auto compiled = detail::compile<Args...>(S());
- auto it = format_to(detail::truncating_iterator<OutputIt>(out, n), compiled,
- args...);
- return {it.base(), it.count()};
-}
-
-template <typename CompiledFormat, typename... Args>
-size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
- return format_to(detail::counting_iterator(), cf, args...).count();
-}
-
-FMT_END_NAMESPACE
-
-#endif // FMT_COMPILE_H_