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Diffstat (limited to 'matching/include/spdlog/fmt/bundled/core.h')
| -rw-r--r-- | matching/include/spdlog/fmt/bundled/core.h | 1502 |
1 files changed, 1502 insertions, 0 deletions
diff --git a/matching/include/spdlog/fmt/bundled/core.h b/matching/include/spdlog/fmt/bundled/core.h new file mode 100644 index 0000000..50b7935 --- /dev/null +++ b/matching/include/spdlog/fmt/bundled/core.h @@ -0,0 +1,1502 @@ +// Formatting library for C++ - the core API +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_CORE_H_ +#define FMT_CORE_H_ + +#include <cassert> +#include <cstdio> // std::FILE +#include <cstring> +#include <iterator> +#include <string> +#include <type_traits> + +// The fmt library version in the form major * 10000 + minor * 100 + patch. +#define FMT_VERSION 50300 + +#ifdef __has_feature +# define FMT_HAS_FEATURE(x) __has_feature(x) +#else +# define FMT_HAS_FEATURE(x) 0 +#endif + +#if defined(__has_include) && !defined(__INTELLISENSE__) && \ + !(defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1600) +# define FMT_HAS_INCLUDE(x) __has_include(x) +#else +# define FMT_HAS_INCLUDE(x) 0 +#endif + +#ifdef __has_cpp_attribute +# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) +#else +# define FMT_HAS_CPP_ATTRIBUTE(x) 0 +#endif + +#if defined(__GNUC__) && !defined(__clang__) +# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) +#else +# define FMT_GCC_VERSION 0 +#endif + +#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__) +# define FMT_HAS_GXX_CXX11 FMT_GCC_VERSION +#else +# define FMT_HAS_GXX_CXX11 0 +#endif + +#ifdef _MSC_VER +# define FMT_MSC_VER _MSC_VER +#else +# define FMT_MSC_VER 0 +#endif + +// Check if relaxed C++14 constexpr is supported. +// GCC doesn't allow throw in constexpr until version 6 (bug 67371). +#ifndef FMT_USE_CONSTEXPR +# define FMT_USE_CONSTEXPR \ + (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || \ + (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L)) +#endif +#if FMT_USE_CONSTEXPR +# define FMT_CONSTEXPR constexpr +# define FMT_CONSTEXPR_DECL constexpr +#else +# define FMT_CONSTEXPR inline +# define FMT_CONSTEXPR_DECL +#endif + +#ifndef FMT_USE_CONSTEXPR11 +# define FMT_USE_CONSTEXPR11 \ + (FMT_USE_CONSTEXPR || FMT_GCC_VERSION >= 406 || FMT_MSC_VER >= 1900) +#endif +#if FMT_USE_CONSTEXPR11 +# define FMT_CONSTEXPR11 constexpr +#else +# define FMT_CONSTEXPR11 +#endif + +#ifndef FMT_OVERRIDE +# if FMT_HAS_FEATURE(cxx_override) || \ + (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900 +# define FMT_OVERRIDE override +# else +# define FMT_OVERRIDE +# endif +#endif + +#if FMT_HAS_FEATURE(cxx_explicit_conversions) || \ + FMT_GCC_VERSION >= 405 || FMT_MSC_VER >= 1800 +# define FMT_USE_EXPLICIT 1 +# define FMT_EXPLICIT explicit +#else +# define FMT_USE_EXPLICIT 0 +# define FMT_EXPLICIT +#endif + +#ifndef FMT_NULL +# if FMT_HAS_FEATURE(cxx_nullptr) || \ + (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1600 +# define FMT_NULL nullptr +# define FMT_USE_NULLPTR 1 +# else +# define FMT_NULL NULL +# endif +#endif +#ifndef FMT_USE_NULLPTR +# define FMT_USE_NULLPTR 0 +#endif + +// Check if exceptions are disabled. +#ifndef FMT_EXCEPTIONS +# if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || \ + FMT_MSC_VER && !_HAS_EXCEPTIONS +# define FMT_EXCEPTIONS 0 +# else +# define FMT_EXCEPTIONS 1 +# endif +#endif + +// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature). +#ifndef FMT_USE_NOEXCEPT +# define FMT_USE_NOEXCEPT 0 +#endif + +#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ + (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900 +# define FMT_DETECTED_NOEXCEPT noexcept +# define FMT_HAS_CXX11_NOEXCEPT 1 +#else +# define FMT_DETECTED_NOEXCEPT throw() +# define FMT_HAS_CXX11_NOEXCEPT 0 +#endif + +#ifndef FMT_NOEXCEPT +# if FMT_EXCEPTIONS || FMT_HAS_CXX11_NOEXCEPT +# define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT +# else +# define FMT_NOEXCEPT +# endif +#endif + +#ifndef FMT_BEGIN_NAMESPACE +# if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || \ + FMT_MSC_VER >= 1900 +# define FMT_INLINE_NAMESPACE inline namespace +# define FMT_END_NAMESPACE }} +# else +# define FMT_INLINE_NAMESPACE namespace +# define FMT_END_NAMESPACE } using namespace v5; } +# endif +# define FMT_BEGIN_NAMESPACE namespace fmt { FMT_INLINE_NAMESPACE v5 { +#endif + +#if !defined(FMT_HEADER_ONLY) && defined(_WIN32) +# ifdef FMT_EXPORT +# define FMT_API __declspec(dllexport) +# elif defined(FMT_SHARED) +# define FMT_API __declspec(dllimport) +# endif +#endif +#ifndef FMT_API +# define FMT_API +#endif + +#ifndef FMT_ASSERT +# define FMT_ASSERT(condition, message) assert((condition) && message) +#endif + +// libc++ supports string_view in pre-c++17. +#if (FMT_HAS_INCLUDE(<string_view>) && \ + (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \ + (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910) +# include <string_view> +# define FMT_STRING_VIEW std::basic_string_view +#elif FMT_HAS_INCLUDE(<experimental/string_view>) && __cplusplus >= 201402L +# include <experimental/string_view> +# define FMT_STRING_VIEW std::experimental::basic_string_view +#endif + +// std::result_of is defined in <functional> in gcc 4.4. +#if FMT_GCC_VERSION && FMT_GCC_VERSION <= 404 +# include <functional> +#endif + +FMT_BEGIN_NAMESPACE +namespace internal { + +// An implementation of declval for pre-C++11 compilers such as gcc 4. +template <typename T> +typename std::add_rvalue_reference<T>::type declval() FMT_NOEXCEPT; + +template <typename> +struct result_of; + +template <typename F, typename... Args> +struct result_of<F(Args...)> { + // A workaround for gcc 4.4 that doesn't allow F to be a reference. + typedef typename std::result_of< + typename std::remove_reference<F>::type(Args...)>::type type; +}; + +// Casts nonnegative integer to unsigned. +template <typename Int> +FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value) { + FMT_ASSERT(value >= 0, "negative value"); + return static_cast<typename std::make_unsigned<Int>::type>(value); +} + +/** A contiguous memory buffer with an optional growing ability. */ +template <typename T> +class basic_buffer { + private: + basic_buffer(const basic_buffer &) = delete; + void operator=(const basic_buffer &) = delete; + + T *ptr_; + std::size_t size_; + std::size_t capacity_; + + protected: + // Don't initialize ptr_ since it is not accessed to save a few cycles. + basic_buffer(std::size_t sz) FMT_NOEXCEPT: size_(sz), capacity_(sz) {} + + basic_buffer(T *p = FMT_NULL, std::size_t sz = 0, std::size_t cap = 0) + FMT_NOEXCEPT: ptr_(p), size_(sz), capacity_(cap) {} + + /** Sets the buffer data and capacity. */ + void set(T *buf_data, std::size_t buf_capacity) FMT_NOEXCEPT { + ptr_ = buf_data; + capacity_ = buf_capacity; + } + + /** Increases the buffer capacity to hold at least *capacity* elements. */ + virtual void grow(std::size_t capacity) = 0; + + public: + typedef T value_type; + typedef const T &const_reference; + + virtual ~basic_buffer() {} + + T *begin() FMT_NOEXCEPT { return ptr_; } + T *end() FMT_NOEXCEPT { return ptr_ + size_; } + + /** Returns the size of this buffer. */ + std::size_t size() const FMT_NOEXCEPT { return size_; } + + /** Returns the capacity of this buffer. */ + std::size_t capacity() const FMT_NOEXCEPT { return capacity_; } + + /** Returns a pointer to the buffer data. */ + T *data() FMT_NOEXCEPT { return ptr_; } + + /** Returns a pointer to the buffer data. */ + const T *data() const FMT_NOEXCEPT { return ptr_; } + + /** + Resizes the buffer. If T is a POD type new elements may not be initialized. + */ + void resize(std::size_t new_size) { + reserve(new_size); + size_ = new_size; + } + + /** Clears this buffer. */ + void clear() { size_ = 0; } + + /** Reserves space to store at least *capacity* elements. */ + void reserve(std::size_t new_capacity) { + if (new_capacity > capacity_) + grow(new_capacity); + } + + void push_back(const T &value) { + reserve(size_ + 1); + ptr_[size_++] = value; + } + + /** Appends data to the end of the buffer. */ + template <typename U> + void append(const U *begin, const U *end); + + T &operator[](std::size_t index) { return ptr_[index]; } + const T &operator[](std::size_t index) const { return ptr_[index]; } +}; + +typedef basic_buffer<char> buffer; +typedef basic_buffer<wchar_t> wbuffer; + +// A container-backed buffer. +template <typename Container> +class container_buffer : public basic_buffer<typename Container::value_type> { + private: + Container &container_; + + protected: + void grow(std::size_t capacity) FMT_OVERRIDE { + container_.resize(capacity); + this->set(&container_[0], capacity); + } + + public: + explicit container_buffer(Container &c) + : basic_buffer<typename Container::value_type>(c.size()), container_(c) {} +}; + +// Extracts a reference to the container from back_insert_iterator. +template <typename Container> +inline Container &get_container(std::back_insert_iterator<Container> it) { + typedef std::back_insert_iterator<Container> bi_iterator; + struct accessor: bi_iterator { + accessor(bi_iterator iter) : bi_iterator(iter) {} + using bi_iterator::container; + }; + return *accessor(it).container; +} + +struct error_handler { + FMT_CONSTEXPR error_handler() {} + FMT_CONSTEXPR error_handler(const error_handler &) {} + + // This function is intentionally not constexpr to give a compile-time error. + FMT_API void on_error(const char *message); +}; + +template <typename T> +struct no_formatter_error : std::false_type {}; +} // namespace internal + +#if FMT_GCC_VERSION && FMT_GCC_VERSION < 405 +template <typename... T> +struct is_constructible: std::false_type {}; +#else +template <typename... T> +struct is_constructible : std::is_constructible<T...> {}; +#endif + +/** + An implementation of ``std::basic_string_view`` for pre-C++17. It provides a + subset of the API. ``fmt::basic_string_view`` is used for format strings even + if ``std::string_view`` is available to prevent issues when a library is + compiled with a different ``-std`` option than the client code (which is not + recommended). + */ +template <typename Char> +class basic_string_view { + private: + const Char *data_; + size_t size_; + + public: + typedef Char char_type; + typedef const Char *iterator; + + FMT_CONSTEXPR basic_string_view() FMT_NOEXCEPT : data_(FMT_NULL), size_(0) {} + + /** Constructs a string reference object from a C string and a size. */ + FMT_CONSTEXPR basic_string_view(const Char *s, size_t count) FMT_NOEXCEPT + : data_(s), size_(count) {} + + /** + \rst + Constructs a string reference object from a C string computing + the size with ``std::char_traits<Char>::length``. + \endrst + */ + basic_string_view(const Char *s) + : data_(s), size_(std::char_traits<Char>::length(s)) {} + + /** Constructs a string reference from a ``std::basic_string`` object. */ + template <typename Alloc> + FMT_CONSTEXPR basic_string_view( + const std::basic_string<Char, Alloc> &s) FMT_NOEXCEPT + : data_(s.data()), size_(s.size()) {} + +#ifdef FMT_STRING_VIEW + FMT_CONSTEXPR basic_string_view(FMT_STRING_VIEW<Char> s) FMT_NOEXCEPT + : data_(s.data()), size_(s.size()) {} +#endif + + /** Returns a pointer to the string data. */ + FMT_CONSTEXPR const Char *data() const { return data_; } + + /** Returns the string size. */ + FMT_CONSTEXPR size_t size() const { return size_; } + + FMT_CONSTEXPR iterator begin() const { return data_; } + FMT_CONSTEXPR iterator end() const { return data_ + size_; } + + FMT_CONSTEXPR void remove_prefix(size_t n) { + data_ += n; + size_ -= n; + } + + // Lexicographically compare this string reference to other. + int compare(basic_string_view other) const { + size_t str_size = size_ < other.size_ ? size_ : other.size_; + int result = std::char_traits<Char>::compare(data_, other.data_, str_size); + if (result == 0) + result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); + return result; + } + + friend bool operator==(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) == 0; + } + friend bool operator!=(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) != 0; + } + friend bool operator<(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) < 0; + } + friend bool operator<=(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) <= 0; + } + friend bool operator>(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) > 0; + } + friend bool operator>=(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) >= 0; + } +}; + +typedef basic_string_view<char> string_view; +typedef basic_string_view<wchar_t> wstring_view; + +/** + \rst + The function ``to_string_view`` adapts non-intrusively any kind of string or + string-like type if the user provides a (possibly templated) overload of + ``to_string_view`` which takes an instance of the string class + ``StringType<Char>`` and returns a ``fmt::basic_string_view<Char>``. + The conversion function must live in the very same namespace as + ``StringType<Char>`` to be picked up by ADL. Non-templated string types + like f.e. QString must return a ``basic_string_view`` with a fixed matching + char type. + + **Example**:: + + namespace my_ns { + inline string_view to_string_view(const my_string &s) { + return {s.data(), s.length()}; + } + } + + std::string message = fmt::format(my_string("The answer is {}"), 42); + \endrst + */ +template <typename Char> +inline basic_string_view<Char> + to_string_view(basic_string_view<Char> s) { return s; } + +template <typename Char> +inline basic_string_view<Char> + to_string_view(const std::basic_string<Char> &s) { return s; } + +template <typename Char> +inline basic_string_view<Char> to_string_view(const Char *s) { return s; } + +#ifdef FMT_STRING_VIEW +template <typename Char> +inline basic_string_view<Char> + to_string_view(FMT_STRING_VIEW<Char> s) { return s; } +#endif + +// A base class for compile-time strings. It is defined in the fmt namespace to +// make formatting functions visible via ADL, e.g. format(fmt("{}"), 42). +struct compile_string {}; + +template <typename S> +struct is_compile_string : std::is_base_of<compile_string, S> {}; + +template < + typename S, + typename Enable = typename std::enable_if<is_compile_string<S>::value>::type> +FMT_CONSTEXPR basic_string_view<typename S::char_type> + to_string_view(const S &s) { return s; } + +template <typename Context> +class basic_format_arg; + +template <typename Context> +class basic_format_args; + +// A formatter for objects of type T. +template <typename T, typename Char = char, typename Enable = void> +struct formatter { + static_assert(internal::no_formatter_error<T>::value, + "don't know how to format the type, include fmt/ostream.h if it provides " + "an operator<< that should be used"); + + // The following functions are not defined intentionally. + template <typename ParseContext> + typename ParseContext::iterator parse(ParseContext &); + template <typename FormatContext> + auto format(const T &val, FormatContext &ctx) -> decltype(ctx.out()); +}; + +template <typename T, typename Char, typename Enable = void> +struct convert_to_int: std::integral_constant< + bool, !std::is_arithmetic<T>::value && std::is_convertible<T, int>::value> {}; + +namespace internal { + +struct dummy_string_view { typedef void char_type; }; +dummy_string_view to_string_view(...); +using fmt::v5::to_string_view; + +// Specifies whether S is a string type convertible to fmt::basic_string_view. +template <typename S> +struct is_string : std::integral_constant<bool, !std::is_same< + dummy_string_view, decltype(to_string_view(declval<S>()))>::value> {}; + +template <typename S> +struct char_t { + typedef decltype(to_string_view(declval<S>())) result; + typedef typename result::char_type type; +}; + +template <typename Char> +struct named_arg_base; + +template <typename T, typename Char> +struct named_arg; + +enum type { + none_type, named_arg_type, + // Integer types should go first, + int_type, uint_type, long_long_type, ulong_long_type, bool_type, char_type, + last_integer_type = char_type, + // followed by floating-point types. + double_type, long_double_type, last_numeric_type = long_double_type, + cstring_type, string_type, pointer_type, custom_type +}; + +FMT_CONSTEXPR bool is_integral(type t) { + FMT_ASSERT(t != internal::named_arg_type, "invalid argument type"); + return t > internal::none_type && t <= internal::last_integer_type; +} + +FMT_CONSTEXPR bool is_arithmetic(type t) { + FMT_ASSERT(t != internal::named_arg_type, "invalid argument type"); + return t > internal::none_type && t <= internal::last_numeric_type; +} + +template <typename Char> +struct string_value { + const Char *value; + std::size_t size; +}; + +template <typename Context> +struct custom_value { + const void *value; + void (*format)(const void *arg, Context &ctx); +}; + +// A formatting argument value. +template <typename Context> +class value { + public: + typedef typename Context::char_type char_type; + + union { + int int_value; + unsigned uint_value; + long long long_long_value; + unsigned long long ulong_long_value; + double double_value; + long double long_double_value; + const void *pointer; + string_value<char_type> string; + string_value<signed char> sstring; + string_value<unsigned char> ustring; + custom_value<Context> custom; + }; + + FMT_CONSTEXPR value(int val = 0) : int_value(val) {} + value(unsigned val) { uint_value = val; } + value(long long val) { long_long_value = val; } + value(unsigned long long val) { ulong_long_value = val; } + value(double val) { double_value = val; } + value(long double val) { long_double_value = val; } + value(const char_type *val) { string.value = val; } + value(const signed char *val) { + static_assert(std::is_same<char, char_type>::value, + "incompatible string types"); + sstring.value = val; + } + value(const unsigned char *val) { + static_assert(std::is_same<char, char_type>::value, + "incompatible string types"); + ustring.value = val; + } + value(basic_string_view<char_type> val) { + string.value = val.data(); + string.size = val.size(); + } + value(const void *val) { pointer = val; } + + template <typename T> + explicit value(const T &val) { + custom.value = &val; + custom.format = &format_custom_arg<T>; + } + + const named_arg_base<char_type> &as_named_arg() { + return *static_cast<const named_arg_base<char_type>*>(pointer); + } + + private: + // Formats an argument of a custom type, such as a user-defined class. + template <typename T> + static void format_custom_arg(const void *arg, Context &ctx) { + // Get the formatter type through the context to allow different contexts + // have different extension points, e.g. `formatter<T>` for `format` and + // `printf_formatter<T>` for `printf`. + typename Context::template formatter_type<T>::type f; + auto &&parse_ctx = ctx.parse_context(); + parse_ctx.advance_to(f.parse(parse_ctx)); + ctx.advance_to(f.format(*static_cast<const T*>(arg), ctx)); + } +}; + +// Value initializer used to delay conversion to value and reduce memory churn. +template <typename Context, typename T, type TYPE> +struct init { + T val; + static const type type_tag = TYPE; + + FMT_CONSTEXPR init(const T &v) : val(v) {} + FMT_CONSTEXPR operator value<Context>() const { return value<Context>(val); } +}; + +template <typename Context, typename T> +FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T &value); + +#define FMT_MAKE_VALUE(TAG, ArgType, ValueType) \ + template <typename C> \ + FMT_CONSTEXPR init<C, ValueType, TAG> make_value(ArgType val) { \ + return static_cast<ValueType>(val); \ + } + +#define FMT_MAKE_VALUE_SAME(TAG, Type) \ + template <typename C> \ + FMT_CONSTEXPR init<C, Type, TAG> make_value(Type val) { return val; } + +FMT_MAKE_VALUE(bool_type, bool, int) +FMT_MAKE_VALUE(int_type, short, int) +FMT_MAKE_VALUE(uint_type, unsigned short, unsigned) +FMT_MAKE_VALUE_SAME(int_type, int) +FMT_MAKE_VALUE_SAME(uint_type, unsigned) + +// To minimize the number of types we need to deal with, long is translated +// either to int or to long long depending on its size. +typedef std::conditional<sizeof(long) == sizeof(int), int, long long>::type + long_type; +FMT_MAKE_VALUE( + (sizeof(long) == sizeof(int) ? int_type : long_long_type), long, long_type) +typedef std::conditional<sizeof(unsigned long) == sizeof(unsigned), + unsigned, unsigned long long>::type ulong_type; +FMT_MAKE_VALUE( + (sizeof(unsigned long) == sizeof(unsigned) ? uint_type : ulong_long_type), + unsigned long, ulong_type) + +FMT_MAKE_VALUE_SAME(long_long_type, long long) +FMT_MAKE_VALUE_SAME(ulong_long_type, unsigned long long) +FMT_MAKE_VALUE(int_type, signed char, int) +FMT_MAKE_VALUE(uint_type, unsigned char, unsigned) + +// This doesn't use FMT_MAKE_VALUE because of ambiguity in gcc 4.4. +template <typename C, typename Char> +FMT_CONSTEXPR typename std::enable_if< + std::is_same<typename C::char_type, Char>::value, + init<C, int, char_type>>::type make_value(Char val) { return val; } + +template <typename C> +FMT_CONSTEXPR typename std::enable_if< + !std::is_same<typename C::char_type, char>::value, + init<C, int, char_type>>::type make_value(char val) { return val; } + +FMT_MAKE_VALUE(double_type, float, double) +FMT_MAKE_VALUE_SAME(double_type, double) +FMT_MAKE_VALUE_SAME(long_double_type, long double) + +// Formatting of wide strings into a narrow buffer and multibyte strings +// into a wide buffer is disallowed (https://github.com/fmtlib/fmt/pull/606). +FMT_MAKE_VALUE(cstring_type, typename C::char_type*, + const typename C::char_type*) +FMT_MAKE_VALUE(cstring_type, const typename C::char_type*, + const typename C::char_type*) + +FMT_MAKE_VALUE(cstring_type, signed char*, const signed char*) +FMT_MAKE_VALUE_SAME(cstring_type, const signed char*) +FMT_MAKE_VALUE(cstring_type, unsigned char*, const unsigned char*) +FMT_MAKE_VALUE_SAME(cstring_type, const unsigned char*) +FMT_MAKE_VALUE_SAME(string_type, basic_string_view<typename C::char_type>) +FMT_MAKE_VALUE(string_type, + typename basic_string_view<typename C::char_type>::type, + basic_string_view<typename C::char_type>) +FMT_MAKE_VALUE(string_type, const std::basic_string<typename C::char_type>&, + basic_string_view<typename C::char_type>) +FMT_MAKE_VALUE(pointer_type, void*, const void*) +FMT_MAKE_VALUE_SAME(pointer_type, const void*) + +#if FMT_USE_NULLPTR +FMT_MAKE_VALUE(pointer_type, std::nullptr_t, const void*) +#endif + +// Formatting of arbitrary pointers is disallowed. If you want to output a +// pointer cast it to "void *" or "const void *". In particular, this forbids +// formatting of "[const] volatile char *" which is printed as bool by +// iostreams. +template <typename C, typename T> +typename std::enable_if<!std::is_same<T, typename C::char_type>::value>::type + make_value(const T *) { + static_assert(!sizeof(T), "formatting of non-void pointers is disallowed"); +} + +template <typename C, typename T> +inline typename std::enable_if< + std::is_enum<T>::value && convert_to_int<T, typename C::char_type>::value, + init<C, int, int_type>>::type + make_value(const T &val) { return static_cast<int>(val); } + +template <typename C, typename T, typename Char = typename C::char_type> +inline typename std::enable_if< + is_constructible<basic_string_view<Char>, T>::value && + !internal::is_string<T>::value, + init<C, basic_string_view<Char>, string_type>>::type + make_value(const T &val) { return basic_string_view<Char>(val); } + +template <typename C, typename T, typename Char = typename C::char_type> +inline typename std::enable_if< + !convert_to_int<T, Char>::value && !std::is_same<T, Char>::value && + !std::is_convertible<T, basic_string_view<Char>>::value && + !is_constructible<basic_string_view<Char>, T>::value && + !internal::is_string<T>::value, + // Implicit conversion to std::string is not handled here because it's + // unsafe: https://github.com/fmtlib/fmt/issues/729 + init<C, const T &, custom_type>>::type + make_value(const T &val) { return val; } + +template <typename C, typename T> +init<C, const void*, named_arg_type> + make_value(const named_arg<T, typename C::char_type> &val) { + basic_format_arg<C> arg = make_arg<C>(val.value); + std::memcpy(val.data, &arg, sizeof(arg)); + return static_cast<const void*>(&val); +} + +template <typename C, typename S> +FMT_CONSTEXPR11 typename std::enable_if< + internal::is_string<S>::value, + init<C, basic_string_view<typename C::char_type>, string_type>>::type + make_value(const S &val) { + // Handle adapted strings. + static_assert(std::is_same< + typename C::char_type, typename internal::char_t<S>::type>::value, + "mismatch between char-types of context and argument"); + return to_string_view(val); +} + +// Maximum number of arguments with packed types. +enum { max_packed_args = 15 }; +enum : unsigned long long { is_unpacked_bit = 1ull << 63 }; + +template <typename Context> +class arg_map; +} // namespace internal + +// A formatting argument. It is a trivially copyable/constructible type to +// allow storage in basic_memory_buffer. +template <typename Context> +class basic_format_arg { + private: + internal::value<Context> value_; + internal::type type_; + + template <typename ContextType, typename T> + friend FMT_CONSTEXPR basic_format_arg<ContextType> + internal::make_arg(const T &value); + + template <typename Visitor, typename Ctx> + friend FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type + visit_format_arg(Visitor &&vis, const basic_format_arg<Ctx> &arg); + + friend class basic_format_args<Context>; + friend class internal::arg_map<Context>; + + typedef typename Context::char_type char_type; + + public: + class handle { + public: + explicit handle(internal::custom_value<Context> custom): custom_(custom) {} + + void format(Context &ctx) const { custom_.format(custom_.value, ctx); } + + private: + internal::custom_value<Context> custom_; + }; + + FMT_CONSTEXPR basic_format_arg() : type_(internal::none_type) {} + + FMT_EXPLICIT operator bool() const FMT_NOEXCEPT { + return type_ != internal::none_type; + } + + internal::type type() const { return type_; } + + bool is_integral() const { return internal::is_integral(type_); } + bool is_arithmetic() const { return internal::is_arithmetic(type_); } +}; + +struct monostate {}; + +/** + \rst + Visits an argument dispatching to the appropriate visit method based on + the argument type. For example, if the argument type is ``double`` then + ``vis(value)`` will be called with the value of type ``double``. + \endrst + */ +template <typename Visitor, typename Context> +FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type + visit_format_arg(Visitor &&vis, const basic_format_arg<Context> &arg) { + typedef typename Context::char_type char_type; + switch (arg.type_) { + case internal::none_type: + break; + case internal::named_arg_type: + FMT_ASSERT(false, "invalid argument type"); + break; + case internal::int_type: + return vis(arg.value_.int_value); + case internal::uint_type: + return vis(arg.value_.uint_value); + case internal::long_long_type: + return vis(arg.value_.long_long_value); + case internal::ulong_long_type: + return vis(arg.value_.ulong_long_value); + case internal::bool_type: + return vis(arg.value_.int_value != 0); + case internal::char_type: + return vis(static_cast<char_type>(arg.value_.int_value)); + case internal::double_type: + return vis(arg.value_.double_value); + case internal::long_double_type: + return vis(arg.value_.long_double_value); + case internal::cstring_type: + return vis(arg.value_.string.value); + case internal::string_type: + return vis(basic_string_view<char_type>( + arg.value_.string.value, arg.value_.string.size)); + case internal::pointer_type: + return vis(arg.value_.pointer); + case internal::custom_type: + return vis(typename basic_format_arg<Context>::handle(arg.value_.custom)); + } + return vis(monostate()); +} + +// DEPRECATED! +template <typename Visitor, typename Context> +FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type + visit(Visitor &&vis, const basic_format_arg<Context> &arg) { + return visit_format_arg(std::forward<Visitor>(vis), arg); +} + +// Parsing context consisting of a format string range being parsed and an +// argument counter for automatic indexing. +template <typename Char, typename ErrorHandler = internal::error_handler> +class basic_parse_context : private ErrorHandler { + private: + basic_string_view<Char> format_str_; + int next_arg_id_; + + public: + typedef Char char_type; + typedef typename basic_string_view<Char>::iterator iterator; + + explicit FMT_CONSTEXPR basic_parse_context( + basic_string_view<Char> format_str, ErrorHandler eh = ErrorHandler()) + : ErrorHandler(eh), format_str_(format_str), next_arg_id_(0) {} + + // Returns an iterator to the beginning of the format string range being + // parsed. + FMT_CONSTEXPR iterator begin() const FMT_NOEXCEPT { + return format_str_.begin(); + } + + // Returns an iterator past the end of the format string range being parsed. + FMT_CONSTEXPR iterator end() const FMT_NOEXCEPT { return format_str_.end(); } + + // Advances the begin iterator to ``it``. + FMT_CONSTEXPR void advance_to(iterator it) { + format_str_.remove_prefix(internal::to_unsigned(it - begin())); + } + + // Returns the next argument index. + FMT_CONSTEXPR unsigned next_arg_id(); + + FMT_CONSTEXPR bool check_arg_id(unsigned) { + if (next_arg_id_ > 0) { + on_error("cannot switch from automatic to manual argument indexing"); + return false; + } + next_arg_id_ = -1; + return true; + } + void check_arg_id(basic_string_view<Char>) {} + + FMT_CONSTEXPR void on_error(const char *message) { + ErrorHandler::on_error(message); + } + + FMT_CONSTEXPR ErrorHandler error_handler() const { return *this; } +}; + +typedef basic_parse_context<char> format_parse_context; +typedef basic_parse_context<wchar_t> wformat_parse_context; + +// DEPRECATED! +typedef basic_parse_context<char> parse_context; +typedef basic_parse_context<wchar_t> wparse_context; + +namespace internal { +// A map from argument names to their values for named arguments. +template <typename Context> +class arg_map { + private: + arg_map(const arg_map &) = delete; + void operator=(const arg_map &) = delete; + + typedef typename Context::char_type char_type; + + struct entry { + basic_string_view<char_type> name; + basic_format_arg<Context> arg; + }; + + entry *map_; + unsigned size_; + + void push_back(value<Context> val) { + const internal::named_arg_base<char_type> &named = val.as_named_arg(); + map_[size_] = entry{named.name, named.template deserialize<Context>()}; + ++size_; + } + + public: + arg_map() : map_(FMT_NULL), size_(0) {} + void init(const basic_format_args<Context> &args); + ~arg_map() { delete [] map_; } + + basic_format_arg<Context> find(basic_string_view<char_type> name) const { + // The list is unsorted, so just return the first matching name. + for (entry *it = map_, *end = map_ + size_; it != end; ++it) { + if (it->name == name) + return it->arg; + } + return {}; + } +}; + +// A type-erased reference to an std::locale to avoid heavy <locale> include. +class locale_ref { + private: + const void *locale_; // A type-erased pointer to std::locale. + friend class locale; + + public: + locale_ref() : locale_(FMT_NULL) {} + + template <typename Locale> + explicit locale_ref(const Locale &loc); + + template <typename Locale> + Locale get() const; +}; + +template <typename OutputIt, typename Context, typename Char> +class context_base { + public: + typedef OutputIt iterator; + + private: + basic_parse_context<Char> parse_context_; + iterator out_; + basic_format_args<Context> args_; + locale_ref loc_; + + protected: + typedef Char char_type; + typedef basic_format_arg<Context> format_arg; + + context_base(OutputIt out, basic_string_view<char_type> format_str, + basic_format_args<Context> ctx_args, + locale_ref loc = locale_ref()) + : parse_context_(format_str), out_(out), args_(ctx_args), loc_(loc) {} + + // Returns the argument with specified index. + format_arg do_get_arg(unsigned arg_id) { + format_arg arg = args_.get(arg_id); + if (!arg) + parse_context_.on_error("argument index out of range"); + return arg; + } + + // Checks if manual indexing is used and returns the argument with + // specified index. + format_arg get_arg(unsigned arg_id) { + return this->parse_context().check_arg_id(arg_id) ? + this->do_get_arg(arg_id) : format_arg(); + } + + public: + basic_parse_context<char_type> &parse_context() { return parse_context_; } + basic_format_args<Context> args() const { return args_; } // DEPRECATED! + basic_format_arg<Context> arg(unsigned id) const { return args_.get(id); } + + internal::error_handler error_handler() { + return parse_context_.error_handler(); + } + + void on_error(const char *message) { parse_context_.on_error(message); } + + // Returns an iterator to the beginning of the output range. + iterator out() { return out_; } + iterator begin() { return out_; } // deprecated + + // Advances the begin iterator to ``it``. + void advance_to(iterator it) { out_ = it; } + + locale_ref locale() { return loc_; } +}; + +template <typename Context, typename T> +struct get_type { + typedef decltype(make_value<Context>( + declval<typename std::decay<T>::type&>())) value_type; + static const type value = value_type::type_tag; +}; + +template <typename Context> +FMT_CONSTEXPR11 unsigned long long get_types() { return 0; } + +template <typename Context, typename Arg, typename... Args> +FMT_CONSTEXPR11 unsigned long long get_types() { + return get_type<Context, Arg>::value | (get_types<Context, Args...>() << 4); +} + +template <typename Context, typename T> +FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T &value) { + basic_format_arg<Context> arg; + arg.type_ = get_type<Context, T>::value; + arg.value_ = make_value<Context>(value); + return arg; +} + +template <bool IS_PACKED, typename Context, typename T> +inline typename std::enable_if<IS_PACKED, value<Context>>::type + make_arg(const T &value) { + return make_value<Context>(value); +} + +template <bool IS_PACKED, typename Context, typename T> +inline typename std::enable_if<!IS_PACKED, basic_format_arg<Context>>::type + make_arg(const T &value) { + return make_arg<Context>(value); +} +} // namespace internal + +// Formatting context. +template <typename OutputIt, typename Char> +class basic_format_context : + public internal::context_base< + OutputIt, basic_format_context<OutputIt, Char>, Char> { + public: + /** The character type for the output. */ + typedef Char char_type; + + // using formatter_type = formatter<T, char_type>; + template <typename T> + struct formatter_type { typedef formatter<T, char_type> type; }; + + private: + internal::arg_map<basic_format_context> map_; + + basic_format_context(const basic_format_context &) = delete; + void operator=(const basic_format_context &) = delete; + + typedef internal::context_base<OutputIt, basic_format_context, Char> base; + typedef typename base::format_arg format_arg; + using base::get_arg; + + public: + using typename base::iterator; + + /** + Constructs a ``basic_format_context`` object. References to the arguments are + stored in the object so make sure they have appropriate lifetimes. + */ + basic_format_context(OutputIt out, basic_string_view<char_type> format_str, + basic_format_args<basic_format_context> ctx_args, + internal::locale_ref loc = internal::locale_ref()) + : base(out, format_str, ctx_args, loc) {} + + format_arg next_arg() { + return this->do_get_arg(this->parse_context().next_arg_id()); + } + format_arg get_arg(unsigned arg_id) { return this->do_get_arg(arg_id); } + + // Checks if manual indexing is used and returns the argument with the + // specified name. + format_arg get_arg(basic_string_view<char_type> name); +}; + +template <typename Char> +struct buffer_context { + typedef basic_format_context< + std::back_insert_iterator<internal::basic_buffer<Char>>, Char> type; +}; +typedef buffer_context<char>::type format_context; +typedef buffer_context<wchar_t>::type wformat_context; + +/** + \rst + An array of references to arguments. It can be implicitly converted into + `~fmt::basic_format_args` for passing into type-erased formatting functions + such as `~fmt::vformat`. + \endrst + */ +template <typename Context, typename ...Args> +class format_arg_store { + private: + static const size_t NUM_ARGS = sizeof...(Args); + + // Packed is a macro on MinGW so use IS_PACKED instead. + static const bool IS_PACKED = NUM_ARGS < internal::max_packed_args; + + typedef typename std::conditional<IS_PACKED, + internal::value<Context>, basic_format_arg<Context>>::type value_type; + + // If the arguments are not packed, add one more element to mark the end. + static const size_t DATA_SIZE = + NUM_ARGS + (IS_PACKED && NUM_ARGS != 0 ? 0 : 1); + value_type data_[DATA_SIZE]; + + friend class basic_format_args<Context>; + + static FMT_CONSTEXPR11 unsigned long long get_types() { + return IS_PACKED ? + internal::get_types<Context, Args...>() : + internal::is_unpacked_bit | NUM_ARGS; + } + + public: +#if FMT_USE_CONSTEXPR11 + static FMT_CONSTEXPR11 unsigned long long TYPES = get_types(); +#else + static const unsigned long long TYPES; +#endif + +#if (FMT_GCC_VERSION && FMT_GCC_VERSION <= 405) || \ + (FMT_MSC_VER && FMT_MSC_VER <= 1800) + // Workaround array initialization issues in gcc <= 4.5 and MSVC <= 2013. + format_arg_store(const Args &... args) { + value_type init[DATA_SIZE] = + {internal::make_arg<IS_PACKED, Context>(args)...}; + std::memcpy(data_, init, sizeof(init)); + } +#else + format_arg_store(const Args &... args) + : data_{internal::make_arg<IS_PACKED, Context>(args)...} {} +#endif +}; + +#if !FMT_USE_CONSTEXPR11 +template <typename Context, typename ...Args> +const unsigned long long format_arg_store<Context, Args...>::TYPES = + get_types(); +#endif + +/** + \rst + Constructs an `~fmt::format_arg_store` object that contains references to + arguments and can be implicitly converted to `~fmt::format_args`. `Context` + can be omitted in which case it defaults to `~fmt::context`. + \endrst + */ +template <typename Context = format_context, typename ...Args> +inline format_arg_store<Context, Args...> + make_format_args(const Args &... args) { return {args...}; } + +/** Formatting arguments. */ +template <typename Context> +class basic_format_args { + public: + typedef unsigned size_type; + typedef basic_format_arg<Context> format_arg; + + private: + // To reduce compiled code size per formatting function call, types of first + // max_packed_args arguments are passed in the types_ field. + unsigned long long types_; + union { + // If the number of arguments is less than max_packed_args, the argument + // values are stored in values_, otherwise they are stored in args_. + // This is done to reduce compiled code size as storing larger objects + // may require more code (at least on x86-64) even if the same amount of + // data is actually copied to stack. It saves ~10% on the bloat test. + const internal::value<Context> *values_; + const format_arg *args_; + }; + + bool is_packed() const { return (types_ & internal::is_unpacked_bit) == 0; } + + typename internal::type type(unsigned index) const { + unsigned shift = index * 4; + return static_cast<typename internal::type>( + (types_ & (0xfull << shift)) >> shift); + } + + friend class internal::arg_map<Context>; + + void set_data(const internal::value<Context> *values) { values_ = values; } + void set_data(const format_arg *args) { args_ = args; } + + format_arg do_get(size_type index) const { + format_arg arg; + if (!is_packed()) { + auto num_args = max_size(); + if (index < num_args) + arg = args_[index]; + return arg; + } + if (index > internal::max_packed_args) + return arg; + arg.type_ = type(index); + if (arg.type_ == internal::none_type) + return arg; + internal::value<Context> &val = arg.value_; + val = values_[index]; + return arg; + } + + public: + basic_format_args() : types_(0) {} + + /** + \rst + Constructs a `basic_format_args` object from `~fmt::format_arg_store`. + \endrst + */ + template <typename... Args> + basic_format_args(const format_arg_store<Context, Args...> &store) + : types_(static_cast<unsigned long long>(store.TYPES)) { + set_data(store.data_); + } + + /** + \rst + Constructs a `basic_format_args` object from a dynamic set of arguments. + \endrst + */ + basic_format_args(const format_arg *args, size_type count) + : types_(internal::is_unpacked_bit | count) { + set_data(args); + } + + /** Returns the argument at specified index. */ + format_arg get(size_type index) const { + format_arg arg = do_get(index); + if (arg.type_ == internal::named_arg_type) + arg = arg.value_.as_named_arg().template deserialize<Context>(); + return arg; + } + + size_type max_size() const { + unsigned long long max_packed = internal::max_packed_args; + return static_cast<size_type>( + is_packed() ? max_packed : types_ & ~internal::is_unpacked_bit); + } +}; + +/** An alias to ``basic_format_args<context>``. */ +// It is a separate type rather than a typedef to make symbols readable. +struct format_args : basic_format_args<format_context> { + template <typename ...Args> + format_args(Args &&... arg) + : basic_format_args<format_context>(std::forward<Args>(arg)...) {} +}; +struct wformat_args : basic_format_args<wformat_context> { + template <typename ...Args> + wformat_args(Args &&... arg) + : basic_format_args<wformat_context>(std::forward<Args>(arg)...) {} +}; + +#define FMT_ENABLE_IF_T(B, T) typename std::enable_if<B, T>::type + +#ifndef FMT_USE_ALIAS_TEMPLATES +# define FMT_USE_ALIAS_TEMPLATES FMT_HAS_FEATURE(cxx_alias_templates) +#endif +#if FMT_USE_ALIAS_TEMPLATES +/** String's character type. */ +template <typename S> +using char_t = FMT_ENABLE_IF_T( + internal::is_string<S>::value, typename internal::char_t<S>::type); +#define FMT_CHAR(S) fmt::char_t<S> +#else +template <typename S> +struct char_t : std::enable_if< + internal::is_string<S>::value, typename internal::char_t<S>::type> {}; +#define FMT_CHAR(S) typename char_t<S>::type +#endif + +namespace internal { +template <typename Char> +struct named_arg_base { + basic_string_view<Char> name; + + // Serialized value<context>. + mutable char data[ + sizeof(basic_format_arg<typename buffer_context<Char>::type>)]; + + named_arg_base(basic_string_view<Char> nm) : name(nm) {} + + template <typename Context> + basic_format_arg<Context> deserialize() const { + basic_format_arg<Context> arg; + std::memcpy(&arg, data, sizeof(basic_format_arg<Context>)); + return arg; + } +}; + +template <typename T, typename Char> +struct named_arg : named_arg_base<Char> { + const T &value; + + named_arg(basic_string_view<Char> name, const T &val) + : named_arg_base<Char>(name), value(val) {} +}; + +template <typename... Args, typename S> +inline typename std::enable_if<!is_compile_string<S>::value>::type + check_format_string(const S &) {} +template <typename... Args, typename S> +typename std::enable_if<is_compile_string<S>::value>::type + check_format_string(S); + +template <typename S, typename... Args> +struct checked_args : format_arg_store< + typename buffer_context<FMT_CHAR(S)>::type, Args...> { + typedef typename buffer_context<FMT_CHAR(S)>::type context; + + checked_args(const S &format_str, const Args &... args): + format_arg_store<context, Args...>(args...) { + internal::check_format_string<Args...>(format_str); + } + + basic_format_args<context> operator*() const { return *this; } +}; + +template <typename Char> +std::basic_string<Char> vformat( + basic_string_view<Char> format_str, + basic_format_args<typename buffer_context<Char>::type> args); + +template <typename Char> +typename buffer_context<Char>::type::iterator vformat_to( + internal::basic_buffer<Char> &buf, basic_string_view<Char> format_str, + basic_format_args<typename buffer_context<Char>::type> args); +} + +/** + \rst + Returns a named argument to be used in a formatting function. + + **Example**:: + + fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23)); + \endrst + */ +template <typename T> +inline internal::named_arg<T, char> arg(string_view name, const T &arg) { + return {name, arg}; +} + +template <typename T> +inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg) { + return {name, arg}; +} + +// Disable nested named arguments, e.g. ``arg("a", arg("b", 42))``. +template <typename S, typename T, typename Char> +void arg(S, internal::named_arg<T, Char>) = delete; + +template <typename Container> +struct is_contiguous: std::false_type {}; + +template <typename Char> +struct is_contiguous<std::basic_string<Char> >: std::true_type {}; + +template <typename Char> +struct is_contiguous<internal::basic_buffer<Char> >: std::true_type {}; + +/** Formats a string and writes the output to ``out``. */ +template <typename Container, typename S> +typename std::enable_if< + is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type + vformat_to( + std::back_insert_iterator<Container> out, + const S &format_str, + basic_format_args<typename buffer_context<FMT_CHAR(S)>::type> args) { + internal::container_buffer<Container> buf(internal::get_container(out)); + internal::vformat_to(buf, to_string_view(format_str), args); + return out; +} + +template <typename Container, typename S, typename... Args> +inline typename std::enable_if< + is_contiguous<Container>::value && internal::is_string<S>::value, + std::back_insert_iterator<Container>>::type + format_to(std::back_insert_iterator<Container> out, const S &format_str, + const Args &... args) { + internal::checked_args<S, Args...> ca(format_str, args...); + return vformat_to(out, to_string_view(format_str), *ca); +} + +template <typename S, typename Char = FMT_CHAR(S)> +inline std::basic_string<Char> vformat( + const S &format_str, + basic_format_args<typename buffer_context<Char>::type> args) { + return internal::vformat(to_string_view(format_str), args); +} + +/** + \rst + Formats arguments and returns the result as a string. + + **Example**:: + + #include <fmt/core.h> + std::string message = fmt::format("The answer is {}", 42); + \endrst +*/ +template <typename S, typename... Args> +inline std::basic_string<FMT_CHAR(S)> format( + const S &format_str, const Args &... args) { + return internal::vformat( + to_string_view(format_str), + *internal::checked_args<S, Args...>(format_str, args...)); +} + +FMT_API void vprint(std::FILE *f, string_view format_str, format_args args); +FMT_API void vprint(std::FILE *f, wstring_view format_str, wformat_args args); + +/** + \rst + Prints formatted data to the file *f*. For wide format strings, + *f* should be in wide-oriented mode set via ``fwide(f, 1)`` or + ``_setmode(_fileno(f), _O_U8TEXT)`` on Windows. + + **Example**:: + + fmt::print(stderr, "Don't {}!", "panic"); + \endrst + */ +template <typename S, typename... Args> +inline FMT_ENABLE_IF_T(internal::is_string<S>::value, void) + print(std::FILE *f, const S &format_str, const Args &... args) { + vprint(f, to_string_view(format_str), + internal::checked_args<S, Args...>(format_str, args...)); +} + +FMT_API void vprint(string_view format_str, format_args args); +FMT_API void vprint(wstring_view format_str, wformat_args args); + +/** + \rst + Prints formatted data to ``stdout``. + + **Example**:: + + fmt::print("Elapsed time: {0:.2f} seconds", 1.23); + \endrst + */ +template <typename S, typename... Args> +inline FMT_ENABLE_IF_T(internal::is_string<S>::value, void) + print(const S &format_str, const Args &... args) { + vprint(to_string_view(format_str), + internal::checked_args<S, Args...>(format_str, args...)); +} +FMT_END_NAMESPACE + +#endif // FMT_CORE_H_ |