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Use default cpp fmt build script.

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Sandu Liviu Catalin
2021-07-03 14:08:25 +03:00
parent 990dd68e7f
commit 465cf3f8dc
210 changed files with 95646 additions and 23 deletions
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// Formatting library for C++ - the standard API implementation
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#ifndef FMT_FORMAT_
#define FMT_FORMAT_
#include <algorithm>
#include <cassert>
#include <variant>
#include "fmt/format.h"
// This implementation verifies the correctness of the standard API proposed in
// P0645 Text Formatting and is optimized for copy-pasting from the paper, not
// for efficiency or readability. An efficient implementation should not use
// std::variant and should store packed argument type tags separately from
// values in basic_format_args for small number of arguments.
namespace std {
template<class T>
constexpr bool Integral = is_integral_v<T>;
template <class O>
using iter_difference_t = ptrdiff_t;
}
// https://fmt.dev/Text%20Formatting.html#format.syn
namespace std {
// [format.error], class format_error
class format_error;
// [format.formatter], formatter
template<class charT> class basic_format_parse_context;
using format_parse_context = basic_format_parse_context<char>;
using wformat_parse_context = basic_format_parse_context<wchar_t>;
template<class Out, class charT> class basic_format_context;
using format_context = basic_format_context<
/* unspecified */ fmt::detail::buffer_appender<char>, char>;
using wformat_context = basic_format_context<
/* unspecified */ fmt::detail::buffer_appender<wchar_t>, wchar_t>;
template<class T, class charT = char> struct formatter {
formatter() = delete;
};
// [format.arguments], arguments
template<class Context> class basic_format_arg;
template<class Visitor, class Context>
/* see below */ auto visit_format_arg(Visitor&& vis, basic_format_arg<Context> arg);
template<class Context, class... Args> struct format_arg_store; // exposition only
template<class Context> class basic_format_args;
using format_args = basic_format_args<format_context>;
using wformat_args = basic_format_args<wformat_context>;
template<class Out, class charT>
using format_args_t = basic_format_args<basic_format_context<Out, charT>>;
template<class Context = format_context, class... Args>
format_arg_store<Context, Args...>
make_format_args(const Args&... args);
template<class... Args>
format_arg_store<wformat_context, Args...>
make_wformat_args(const Args&... args);
// [format.functions], formatting functions
template<class... Args>
string format(string_view fmt, const Args&... args);
template<class... Args>
wstring format(wstring_view fmt, const Args&... args);
string vformat(string_view fmt, format_args args);
wstring vformat(wstring_view fmt, wformat_args args);
template<class Out, class... Args>
Out format_to(Out out, string_view fmt, const Args&... args);
template<class Out, class... Args>
Out format_to(Out out, wstring_view fmt, const Args&... args);
template<class Out>
Out vformat_to(Out out, string_view fmt, format_args_t<fmt::type_identity_t<Out>, char> args);
template<class Out>
Out vformat_to(Out out, wstring_view fmt, format_args_t<fmt::type_identity_t<Out>, wchar_t> args);
template<class Out>
struct format_to_n_result {
Out out;
iter_difference_t<Out> size;
};
template<class Out, class... Args>
format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,
string_view fmt, const Args&... args);
template<class Out, class... Args>
format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,
wstring_view fmt, const Args&... args);
template<class... Args>
size_t formatted_size(string_view fmt, const Args&... args);
template<class... Args>
size_t formatted_size(wstring_view fmt, const Args&... args);
}
// https://fmt.dev/Text%20Formatting.html#format.error
namespace std {
class format_error : public runtime_error {
public:
explicit format_error(const string& what_arg) : runtime_error(what_arg) {}
explicit format_error(const char* what_arg) : runtime_error(what_arg) {}
};
}
namespace std {
namespace detail {
struct error_handler {
// This function is intentionally not constexpr to give a compile-time error.
void on_error(const char* message) {
throw std::format_error(message);
}
};
}
}
// https://fmt.dev/Text%20Formatting.html#format.parse_context
namespace std {
template<class charT>
class basic_format_parse_context {
public:
using char_type = charT;
using const_iterator = typename basic_string_view<charT>::const_iterator;
using iterator = const_iterator;
private:
iterator begin_; // exposition only
iterator end_; // exposition only
enum indexing { unknown, manual, automatic }; // exposition only
indexing indexing_; // exposition only
size_t next_arg_id_; // exposition only
size_t num_args_; // exposition only
public:
explicit constexpr basic_format_parse_context(basic_string_view<charT> fmt,
size_t num_args = 0) noexcept;
basic_format_parse_context(const basic_format_parse_context&) = delete;
basic_format_parse_context& operator=(const basic_format_parse_context&) = delete;
constexpr const_iterator begin() const noexcept;
constexpr const_iterator end() const noexcept;
constexpr void advance_to(const_iterator it);
constexpr size_t next_arg_id();
constexpr void check_arg_id(size_t id);
// Implementation detail:
constexpr void check_arg_id(fmt::string_view) {}
detail::error_handler error_handler() const { return {}; }
void on_error(const char* msg) { error_handler().on_error(msg); }
};
}
namespace std {
template<class charT>
/* explicit */ constexpr basic_format_parse_context<charT>::
basic_format_parse_context(basic_string_view<charT> fmt,
size_t num_args) noexcept
: begin_(fmt.begin()), end_(fmt.end()), indexing_(unknown), next_arg_id_(0), num_args_(num_args) {}
template<class charT>
constexpr typename basic_format_parse_context<charT>::const_iterator basic_format_parse_context<charT>::begin() const noexcept { return begin_; }
template<class charT>
constexpr typename basic_format_parse_context<charT>::const_iterator basic_format_parse_context<charT>::end() const noexcept { return end_; }
template<class charT>
constexpr void basic_format_parse_context<charT>::advance_to(typename basic_format_parse_context<charT>::iterator it) { begin_ = it; }
template<class charT>
constexpr size_t basic_format_parse_context<charT>::next_arg_id() {
if (indexing_ == manual)
throw format_error("manual to automatic indexing");
if (indexing_ == unknown)
indexing_ = automatic;
return next_arg_id_++;
}
template<class charT>
constexpr void basic_format_parse_context<charT>::check_arg_id(size_t id) {
// clang doesn't support __builtin_is_constant_evaluated yet
//if (!(!__builtin_is_constant_evaluated() || id < num_args_))
// throw format_error(invalid index is out of range");
if (indexing_ == automatic)
throw format_error("automatic to manual indexing");
if (indexing_ == unknown)
indexing_ = manual;
}
}
// https://fmt.dev/Text%20Formatting.html#format.context
namespace std {
template<class Out, class charT>
class basic_format_context {
basic_format_args<basic_format_context> args_; // exposition only
Out out_; // exposition only
public:
using iterator = Out;
using char_type = charT;
template<class T> using formatter_type = formatter<T, charT>;
basic_format_arg<basic_format_context> arg(size_t id) const;
iterator out();
void advance_to(iterator it);
// Implementation details:
using format_arg = basic_format_arg<basic_format_context>;
basic_format_context(Out out, basic_format_args<basic_format_context> args, fmt::detail::locale_ref)
: args_(args), out_(out) {}
detail::error_handler error_handler() const { return {}; }
basic_format_arg<basic_format_context> arg(fmt::basic_string_view<charT>) const {
return {}; // unused: named arguments are not supported yet
}
void on_error(const char* msg) { error_handler().on_error(msg); }
};
}
namespace std {
template<class O, class charT>
basic_format_arg<basic_format_context<O, charT>> basic_format_context<O, charT>::arg(size_t id) const { return args_.get(id); }
template<class O, class charT>
typename basic_format_context<O, charT>::iterator basic_format_context<O, charT>::out() { return out_; }
template<class O, class charT>
void basic_format_context<O, charT>::advance_to(typename basic_format_context<O, charT>::iterator it) { out_ = it; }
}
namespace std {
namespace detail {
template <typename T>
constexpr bool is_standard_integer_v =
std::is_same_v<T, signed char> ||
std::is_same_v<T, short int> ||
std::is_same_v<T, int> ||
std::is_same_v<T, long int> ||
std::is_same_v<T, long long int>;
template <typename T>
constexpr bool is_standard_unsigned_integer_v =
std::is_same_v<T, unsigned char> ||
std::is_same_v<T, unsigned short int> ||
std::is_same_v<T, unsigned int> ||
std::is_same_v<T, unsigned long int> ||
std::is_same_v<T, unsigned long long int>;
template <typename T, typename Char> struct formatter;
}
}
// https://fmt.dev/Text%20Formatting.html#format.arg
namespace std {
template<class Context>
class basic_format_arg {
public:
class handle;
private:
using char_type = typename Context::char_type; // exposition only
variant<monostate, bool, char_type,
int, unsigned int, long long int, unsigned long long int,
double, long double,
const char_type*, basic_string_view<char_type>,
const void*, handle> value; // exposition only
template<typename T,
typename = enable_if_t<
std::is_same_v<T, bool> ||
std::is_same_v<T, char_type> ||
(std::is_same_v<T, char> && std::is_same_v<char_type, wchar_t>) ||
detail::is_standard_integer_v<T> ||
detail::is_standard_unsigned_integer_v<T> ||
sizeof(typename Context::template formatter_type<T>().format(declval<const T&>(), declval<Context&>())) != 0
>> explicit basic_format_arg(const T& v) noexcept; // exposition only
explicit basic_format_arg(float n) noexcept; // exposition only
explicit basic_format_arg(double n) noexcept; // exposition only
explicit basic_format_arg(long double n) noexcept; // exposition only
explicit basic_format_arg(const char_type* s); // exposition only
template<class traits>
explicit basic_format_arg(
basic_string_view<char_type, traits> s) noexcept; // exposition only
template<class traits, class Allocator>
explicit basic_format_arg(
const basic_string<char_type, traits, Allocator>& s) noexcept; // exposition only
explicit basic_format_arg(nullptr_t) noexcept; // exposition only
template<class T, typename = enable_if_t<is_void_v<T>>>
explicit basic_format_arg(const T* p) noexcept; // exposition only
// Fails due to a bug in clang
//template<class Visitor, class Ctx>
// friend auto visit_format_arg(Visitor&& vis,
// basic_format_arg<Ctx> arg); // exposition only
friend auto get_value(basic_format_arg arg) {
return arg.value;
}
template <typename T, typename Char> friend struct detail::formatter;
template<class Ctx, class... Args>
friend format_arg_store<Ctx, Args...>
make_format_args(const Args&... args); // exposition only
public:
basic_format_arg() noexcept;
explicit operator bool() const noexcept;
};
}
namespace std {
template<class Context>
basic_format_arg<Context>::basic_format_arg() noexcept {}
template<class Context>
template<class T, typename> /* explicit */ basic_format_arg<Context>::basic_format_arg(const T& v) noexcept {
if constexpr (std::is_same_v<T, bool> || std::is_same_v<T, char_type>)
value = v;
else if constexpr (std::is_same_v<T, char> && std::is_same_v<char_type, wchar_t>)
value = static_cast<wchar_t>(v);
else if constexpr (detail::is_standard_integer_v<T> && sizeof(T) <= sizeof(int))
value = static_cast<int>(v);
else if constexpr (detail::is_standard_unsigned_integer_v<T> && sizeof(T) <= sizeof(unsigned))
value = static_cast<unsigned>(v);
else if constexpr (detail::is_standard_integer_v<T>)
value = static_cast<long long int>(v);
else if constexpr (detail::is_standard_unsigned_integer_v<T>)
value = static_cast<unsigned long long int>(v);
else if constexpr (sizeof(typename Context::template formatter_type<T>().format(declval<const T&>(), declval<Context&>())) != 0)
value = handle(v);
}
template<class Context>
/* explicit */ basic_format_arg<Context>::basic_format_arg(float n) noexcept
: value(static_cast<double>(n)) {}
template<class Context>
/* explicit */ basic_format_arg<Context>::basic_format_arg(double n) noexcept
: value(n) {}
template<class Context>
/* explicit */ basic_format_arg<Context>::basic_format_arg(long double n) noexcept
: value(n) {}
template<class Context>
/* explicit */ basic_format_arg<Context>::basic_format_arg(const typename basic_format_arg<Context>::char_type* s)
: value(s) {
assert(s != nullptr);
}
template<class Context>
template<class traits>
/* explicit */ basic_format_arg<Context>::basic_format_arg(basic_string_view<char_type, traits> s) noexcept
: value(s) {}
template<class Context>
template<class traits, class Allocator>
/* explicit */ basic_format_arg<Context>::basic_format_arg(
const basic_string<char_type, traits, Allocator>& s) noexcept
: value(basic_string_view<char_type>(s.data(), s.size())) {}
template<class Context>
/* explicit */ basic_format_arg<Context>::basic_format_arg(nullptr_t) noexcept
: value(static_cast<const void*>(nullptr)) {}
template<class Context>
template<class T, typename> /* explicit */ basic_format_arg<Context>::basic_format_arg(const T* p) noexcept
: value(p) {}
template<class Context>
/* explicit */ basic_format_arg<Context>::operator bool() const noexcept {
return !holds_alternative<monostate>(value);
}
}
namespace std {
template<class Context>
class basic_format_arg<Context>::handle {
const void* ptr_; // exposition only
void (*format_)(basic_format_parse_context<char_type>&,
Context&, const void*); // exposition only
template<class T> explicit handle(const T& val) noexcept; // exposition only
friend class basic_format_arg<Context>; // exposition only
public:
void format(basic_format_parse_context<char_type>&, Context& ctx) const;
};
}
namespace std {
template<class Context>
template<class T> /* explicit */ basic_format_arg<Context>::handle::handle(const T& val) noexcept
: ptr_(&val), format_([](basic_format_parse_context<char_type>& parse_ctx, Context& format_ctx, const void* ptr) {
typename Context::template formatter_type<T> f;
parse_ctx.advance_to(f.parse(parse_ctx));
format_ctx.advance_to(f.format(*static_cast<const T*>(ptr), format_ctx));
}) {}
template<class Context>
void basic_format_arg<Context>::handle::format(basic_format_parse_context<char_type>& parse_ctx, Context& format_ctx) const {
format_(parse_ctx, format_ctx, ptr_);
}
// https://fmt.dev/Text%20Formatting.html#format.visit
template<class Visitor, class Context>
auto visit_format_arg(Visitor&& vis, basic_format_arg<Context> arg) {
return visit(vis, get_value(arg));
}
}
// https://fmt.dev/Text%20Formatting.html#format.store
namespace std {
template<class Context, class... Args>
struct format_arg_store { // exposition only
array<basic_format_arg<Context>, sizeof...(Args)> args;
};
}
// https://fmt.dev/Text%20Formatting.html#format.basic_args
namespace std {
template<class Context>
class basic_format_args {
size_t size_; // exposition only
const basic_format_arg<Context>* data_; // exposition only
public:
basic_format_args() noexcept;
template<class... Args>
basic_format_args(const format_arg_store<Context, Args...>& store) noexcept;
basic_format_arg<Context> get(size_t i) const noexcept;
};
}
namespace std {
template<class Context>
basic_format_args<Context>::basic_format_args() noexcept : size_(0) {}
template<class Context>
template<class... Args>
basic_format_args<Context>::basic_format_args(const format_arg_store<Context, Args...>& store) noexcept
: size_(sizeof...(Args)), data_(store.args.data()) {}
template<class Context>
basic_format_arg<Context> basic_format_args<Context>::get(size_t i) const noexcept {
return i < size_ ? data_[i] : basic_format_arg<Context>();
}
}
namespace std {
// https://fmt.dev/Text%20Formatting.html#format.make_args
template<class Context /*= format_context*/, class... Args>
format_arg_store<Context, Args...> make_format_args(const Args&... args) {
return {basic_format_arg<Context>(args)...};
}
// https://fmt.dev/Text%20Formatting.html#format.make_wargs
template<class... Args>
format_arg_store<wformat_context, Args...> make_wformat_args(const Args&... args) {
return make_format_args<wformat_context>(args...);
}
}
namespace std {
namespace detail {
template <typename OutputIt, typename Char>
class arg_formatter
: public fmt::detail::arg_formatter_base<OutputIt, Char, error_handler> {
private:
using char_type = Char;
using base = fmt::detail::arg_formatter_base<OutputIt, Char, error_handler>;
using format_context = std::basic_format_context<OutputIt, Char>;
using parse_context = basic_format_parse_context<Char>;
parse_context* parse_ctx_;
format_context& ctx_;
public:
using iterator = OutputIt;
using format_specs = typename base::format_specs;
/**
\rst
Constructs an argument formatter object.
*ctx* is a reference to the formatting context,
*spec* contains format specifier information for standard argument types.
\endrst
*/
arg_formatter(format_context& ctx, parse_context* parse_ctx = nullptr, fmt::format_specs* spec = nullptr)
: base(ctx.out(), spec, {}), parse_ctx_(parse_ctx), ctx_(ctx) {}
using base::operator();
/** Formats an argument of a user-defined type. */
iterator operator()(typename std::basic_format_arg<format_context>::handle handle) {
handle.format(*parse_ctx_, ctx_);
return this->out();
}
iterator operator()(monostate) {
throw format_error("");
}
};
template <typename Context>
inline fmt::detail::type get_type(basic_format_arg<Context> arg) {
return visit_format_arg([&] (auto val) {
using char_type = typename Context::char_type;
using T = decltype(val);
if (std::is_same_v<T, monostate>)
return fmt::detail::type::none_type;
if (std::is_same_v<T, bool>)
return fmt::detail::type::bool_type;
if (std::is_same_v<T, char_type>)
return fmt::detail::type::char_type;
if (std::is_same_v<T, int>)
return fmt::detail::type::int_type;
if (std::is_same_v<T, unsigned int>)
return fmt::detail::type::uint_type;
if (std::is_same_v<T, long long int>)
return fmt::detail::type::long_long_type;
if (std::is_same_v<T, unsigned long long int>)
return fmt::detail::type::ulong_long_type;
if (std::is_same_v<T, double>)
return fmt::detail::type::double_type;
if (std::is_same_v<T, long double>)
return fmt::detail::type::long_double_type;
if (std::is_same_v<T, const char_type*>)
return fmt::detail::type::cstring_type;
if (std::is_same_v<T, basic_string_view<char_type>>)
return fmt::detail::type::string_type;
if (std::is_same_v<T, const void*>)
return fmt::detail::type::pointer_type;
assert(get_value(arg).index() == 12);
return fmt::detail::type::custom_type;
}, arg);
}
template <typename Context>
class custom_formatter {
private:
using parse_context = basic_format_parse_context<typename Context::char_type>;
parse_context& parse_ctx_;
Context& format_ctx_;
public:
custom_formatter(parse_context& parse_ctx, Context& ctx) : parse_ctx_(parse_ctx), format_ctx_(ctx) {}
bool operator()(typename basic_format_arg<Context>::handle h) const {
h.format(parse_ctx_, format_ctx_);
return true;
}
template <typename T> bool operator()(T) const { return false; }
};
template <typename ArgFormatter, typename Char, typename Context>
struct format_handler : detail::error_handler {
using iterator = typename ArgFormatter::iterator;
format_handler(iterator out, basic_string_view<Char> str,
basic_format_args<Context> format_args,
fmt::detail::locale_ref loc)
: parse_ctx(str), context(out, format_args, loc) {}
void on_text(const Char* begin, const Char* end) {
auto size = fmt::detail::to_unsigned(end - begin);
auto out = context.out();
auto&& it = fmt::detail::reserve(out, size);
it = std::copy_n(begin, size, it);
context.advance_to(out);
}
int on_arg_id() { return parse_ctx.next_arg_id(); }
int on_arg_id(unsigned id) { return parse_ctx.check_arg_id(id), id; }
int on_arg_id(fmt::basic_string_view<Char>) { return 0; }
void on_replacement_field(int id, const Char* p) {
auto arg = context.arg(id);
parse_ctx.advance_to(parse_ctx.begin() + (p - &*parse_ctx.begin()));
custom_formatter<Context> f(parse_ctx, context);
if (!visit_format_arg(f, arg))
context.advance_to(visit_format_arg(ArgFormatter(context, &parse_ctx), arg));
}
const Char* on_format_specs(int id, const Char* begin, const Char* end) {
auto arg = context.arg(id);
parse_ctx.advance_to(parse_ctx.begin() + (begin - &*parse_ctx.begin()));
custom_formatter<Context> f(parse_ctx, context);
if (visit_format_arg(f, arg)) return &*parse_ctx.begin();
fmt::basic_format_specs<Char> specs;
using fmt::detail::specs_handler;
using parse_context = basic_format_parse_context<Char>;
fmt::detail::specs_checker<specs_handler<parse_context, Context>> handler(
specs_handler<parse_context, Context>(specs, parse_ctx, context), get_type(arg));
begin = parse_format_specs(begin, end, handler);
if (begin == end || *begin != '}') on_error("missing '}' in format string");
parse_ctx.advance_to(parse_ctx.begin() + (begin - &*parse_ctx.begin()));
context.advance_to(visit_format_arg(ArgFormatter(context, &parse_ctx, &specs), arg));
return begin;
}
basic_format_parse_context<Char> parse_ctx;
Context context;
};
template <typename T, typename Char>
struct formatter {
// Parses format specifiers stopping either at the end of the range or at the
// terminating '}'.
template <typename ParseContext>
FMT_CONSTEXPR typename ParseContext::iterator parse(ParseContext& ctx) {
namespace detail = fmt::detail;
typedef detail::dynamic_specs_handler<ParseContext> handler_type;
auto type = detail::mapped_type_constant<T, fmt::buffer_context<Char>>::value;
detail::specs_checker<handler_type> handler(handler_type(specs_, ctx),
type);
auto it = parse_format_specs(ctx.begin(), ctx.end(), handler);
auto type_spec = specs_.type;
auto eh = ctx.error_handler();
switch (type) {
case detail::type::none_type:
FMT_ASSERT(false, "invalid argument type");
break;
case detail::type::int_type:
case detail::type::uint_type:
case detail::type::long_long_type:
case detail::type::ulong_long_type:
case detail::type::bool_type:
handle_int_type_spec(type_spec,
detail::int_type_checker<decltype(eh)>(eh));
break;
case detail::type::char_type:
handle_char_specs(
&specs_, detail::char_specs_checker<decltype(eh)>(type_spec, eh));
break;
case detail::type::double_type:
case detail::type::long_double_type:
detail::parse_float_type_spec(specs_, eh);
break;
case detail::type::cstring_type:
detail::handle_cstring_type_spec(
type_spec, detail::cstring_type_checker<decltype(eh)>(eh));
break;
case detail::type::string_type:
detail::check_string_type_spec(type_spec, eh);
break;
case detail::type::pointer_type:
detail::check_pointer_type_spec(type_spec, eh);
break;
case detail::type::custom_type:
// Custom format specifiers should be checked in parse functions of
// formatter specializations.
break;
}
return it;
}
template <typename FormatContext>
auto format(const T& val, FormatContext& ctx) -> decltype(ctx.out()) {
fmt::detail::handle_dynamic_spec<fmt::detail::width_checker>(
specs_.width, specs_.width_ref, ctx);
fmt::detail::handle_dynamic_spec<fmt::detail::precision_checker>(
specs_.precision, specs_.precision_ref, ctx);
using af = arg_formatter<typename FormatContext::iterator,
typename FormatContext::char_type>;
return visit_format_arg(af(ctx, nullptr, &specs_),
basic_format_arg<FormatContext>(val));
}
private:
fmt::detail::dynamic_format_specs<Char> specs_;
};
} // namespace detail
// https://fmt.dev/Text%20Formatting.html#format.functions
template<class... Args>
string format(string_view fmt, const Args&... args) {
return vformat(fmt, make_format_args(args...));
}
template<class... Args>
wstring format(wstring_view fmt, const Args&... args) {
return vformat(fmt, make_wformat_args(args...));
}
string vformat(string_view fmt, format_args args) {
fmt::memory_buffer mbuf;
fmt::detail::buffer<char>& buf = mbuf;
using af = detail::arg_formatter<fmt::format_context::iterator, char>;
detail::format_handler<af, char, format_context>
h(fmt::detail::buffer_appender<char>(buf), fmt, args, {});
fmt::detail::parse_format_string<false>(fmt::to_string_view(fmt), h);
return to_string(mbuf);
}
wstring vformat(wstring_view fmt, wformat_args args);
template<class Out, class... Args>
Out format_to(Out out, string_view fmt, const Args&... args) {
using context = basic_format_context<Out, decltype(fmt)::value_type>;
return vformat_to(out, fmt, make_format_args<context>(args...));
}
template<class Out, class... Args>
Out format_to(Out out, wstring_view fmt, const Args&... args) {
using context = basic_format_context<Out, decltype(fmt)::value_type>;
return vformat_to(out, fmt, make_format_args<context>(args...));
}
template<class Out>
Out vformat_to(Out out, string_view fmt, format_args_t<fmt::type_identity_t<Out>, char> args) {
using af = detail::arg_formatter<Out, char>;
detail::format_handler<af, char, basic_format_context<Out, char>>
h(out, fmt, args, {});
fmt::detail::parse_format_string<false>(fmt::to_string_view(fmt), h);
return h.context.out();
}
template<class Out>
Out vformat_to(Out out, wstring_view fmt, format_args_t<fmt::type_identity_t<Out>, wchar_t> args);
template<class Out, class... Args>
format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,
string_view fmt, const Args&... args);
template<class Out, class... Args>
format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,
wstring_view fmt, const Args&... args);
template<class... Args>
size_t formatted_size(string_view fmt, const Args&... args);
template<class... Args>
size_t formatted_size(wstring_view fmt, const Args&... args);
#define charT char
template<> struct formatter<charT, charT> : detail::formatter<charT, charT> {};
template<> struct formatter<char, wchar_t>;
template<> struct formatter<charT*, charT> : detail::formatter<const charT*, charT> {};
template<> struct formatter<const charT*, charT> : detail::formatter<const charT*, charT> {};
template<size_t N> struct formatter<const charT[N], charT>
: detail::formatter<std::basic_string_view<charT>, charT> {};
template<class traits, class Allocator>
struct formatter<basic_string<charT, traits, Allocator>, charT>
: detail::formatter<std::basic_string_view<charT>, charT> {};
template<class traits>
struct formatter<basic_string_view<charT, traits>, charT>
: detail::formatter<std::basic_string_view<charT>, charT> {};
template <> struct formatter<nullptr_t, charT> : detail::formatter<const void*, charT> {};
template <> struct formatter<void*, charT> : detail::formatter<const void*, charT> {};
template <> struct formatter<const void*, charT> : detail::formatter<const void*, charT> {};
template <> struct formatter<bool, charT> : detail::formatter<bool, charT> {};
template <> struct formatter<signed char, charT> : detail::formatter<int, charT> {};
template <> struct formatter<short, charT> : detail::formatter<int, charT> {};
template <> struct formatter<int, charT> : detail::formatter<int, charT> {};
template <> struct formatter<long, charT>
: detail::formatter<std::conditional_t<sizeof(long) == sizeof(int), int, long long>, charT> {};
template <> struct formatter<long long, charT> : detail::formatter<long long, charT> {};
template <> struct formatter<unsigned char, charT> : detail::formatter<unsigned int, charT> {};
template <> struct formatter<unsigned short, charT> : detail::formatter<unsigned int, charT> {};
template <> struct formatter<unsigned int, charT> : detail::formatter<unsigned int, charT> {};
template <> struct formatter<unsigned long, charT>
: detail::formatter<std::conditional_t<sizeof(long) == sizeof(int), unsigned, unsigned long long>, charT> {};
template <> struct formatter<unsigned long long, charT> : detail::formatter<unsigned long long, charT> {};
template <> struct formatter<float, charT> : detail::formatter<double, charT> {};
template <> struct formatter<double, charT> : detail::formatter<double, charT> {};
template <> struct formatter<long double, charT> : detail::formatter<long double, charT> {};
#undef charT
#define charT wchar_t
template<> struct formatter<charT, charT> : detail::formatter<charT, charT> {};
template<> struct formatter<char, wchar_t> : detail::formatter<charT, charT> {};
template<> struct formatter<charT*, charT> : detail::formatter<const charT*, charT> {};
template<> struct formatter<const charT*, charT> : detail::formatter<const charT*, charT> {};
template<size_t N> struct formatter<const charT[N], charT>
: detail::formatter<std::basic_string_view<charT>, charT> {};
template<class traits, class Allocator>
struct formatter<std::basic_string<charT, traits, Allocator>, charT>
: detail::formatter<std::basic_string_view<charT>, charT> {};
template<class traits>
struct formatter<std::basic_string_view<charT, traits>, charT>
: detail::formatter<std::basic_string_view<charT>, charT> {};
template <> struct formatter<nullptr_t, charT> : detail::formatter<const void*, charT> {};
template <> struct formatter<void*, charT> : detail::formatter<const void*, charT> {};
template <> struct formatter<const void*, charT> : detail::formatter<const void*, charT> {};
template <> struct formatter<bool, charT> : detail::formatter<bool, charT> {};
template <> struct formatter<signed char, charT> : detail::formatter<int, charT> {};
template <> struct formatter<short, charT> : detail::formatter<int, charT> {};
template <> struct formatter<int, charT> : detail::formatter<int, charT> {};
template <> struct formatter<long, charT>
: detail::formatter<std::conditional_t<sizeof(long) == sizeof(int), int, long long>, charT> {};
template <> struct formatter<long long, charT> : detail::formatter<long long, charT> {};
template <> struct formatter<unsigned char, charT> : detail::formatter<unsigned int, charT> {};
template <> struct formatter<unsigned short, charT> : detail::formatter<unsigned int, charT> {};
template <> struct formatter<unsigned int, charT> : detail::formatter<unsigned int, charT> {};
template <> struct formatter<unsigned long, charT>
: detail::formatter<std::conditional_t<sizeof(long) == sizeof(int), unsigned, unsigned long long>, charT> {};
template <> struct formatter<unsigned long long, charT> : detail::formatter<unsigned long long, charT> {};
template <> struct formatter<float, charT> : detail::formatter<double, charT> {};
template <> struct formatter<double, charT> : detail::formatter<double, charT> {};
template <> struct formatter<long double, charT> : detail::formatter<long double, charT> {};
#undef charT
template<> struct formatter<const wchar_t, char> {
formatter() = delete;
};
}
#endif // FMT_FORMAT_