aboutsummaryrefslogtreecommitdiff
path: root/include/spdlog/fmt/bundled/printf.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/spdlog/fmt/bundled/printf.h')
-rw-r--r--include/spdlog/fmt/bundled/printf.h751
1 files changed, 0 insertions, 751 deletions
diff --git a/include/spdlog/fmt/bundled/printf.h b/include/spdlog/fmt/bundled/printf.h
deleted file mode 100644
index 8c28ac23..00000000
--- a/include/spdlog/fmt/bundled/printf.h
+++ /dev/null
@@ -1,751 +0,0 @@
-// Formatting library for C++ - legacy printf implementation
-//
-// Copyright (c) 2012 - 2016, Victor Zverovich
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_PRINTF_H_
-#define FMT_PRINTF_H_
-
-#include <algorithm> // std::max
-#include <limits> // std::numeric_limits
-
-#include "ostream.h"
-
-FMT_BEGIN_NAMESPACE
-namespace detail {
-
-// Checks if a value fits in int - used to avoid warnings about comparing
-// signed and unsigned integers.
-template <bool IsSigned> struct int_checker {
- template <typename T> static bool fits_in_int(T value) {
- unsigned max = max_value<int>();
- return value <= max;
- }
- static bool fits_in_int(bool) { return true; }
-};
-
-template <> struct int_checker<true> {
- template <typename T> static bool fits_in_int(T value) {
- return value >= (std::numeric_limits<int>::min)() &&
- value <= max_value<int>();
- }
- static bool fits_in_int(int) { return true; }
-};
-
-class printf_precision_handler {
- public:
- template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
- int operator()(T value) {
- if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
- FMT_THROW(format_error("number is too big"));
- return (std::max)(static_cast<int>(value), 0);
- }
-
- template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
- int operator()(T) {
- FMT_THROW(format_error("precision is not integer"));
- return 0;
- }
-};
-
-// An argument visitor that returns true iff arg is a zero integer.
-class is_zero_int {
- public:
- template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
- bool operator()(T value) {
- return value == 0;
- }
-
- template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
- bool operator()(T) {
- return false;
- }
-};
-
-template <typename T> struct make_unsigned_or_bool : std::make_unsigned<T> {};
-
-template <> struct make_unsigned_or_bool<bool> { using type = bool; };
-
-template <typename T, typename Context> class arg_converter {
- private:
- using char_type = typename Context::char_type;
-
- basic_format_arg<Context>& arg_;
- char_type type_;
-
- public:
- arg_converter(basic_format_arg<Context>& arg, char_type type)
- : arg_(arg), type_(type) {}
-
- void operator()(bool value) {
- if (type_ != 's') operator()<bool>(value);
- }
-
- template <typename U, FMT_ENABLE_IF(std::is_integral<U>::value)>
- void operator()(U value) {
- bool is_signed = type_ == 'd' || type_ == 'i';
- using target_type = conditional_t<std::is_same<T, void>::value, U, T>;
- if (const_check(sizeof(target_type) <= sizeof(int))) {
- // Extra casts are used to silence warnings.
- if (is_signed) {
- arg_ = detail::make_arg<Context>(
- static_cast<int>(static_cast<target_type>(value)));
- } else {
- using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
- arg_ = detail::make_arg<Context>(
- static_cast<unsigned>(static_cast<unsigned_type>(value)));
- }
- } else {
- if (is_signed) {
- // glibc's printf doesn't sign extend arguments of smaller types:
- // std::printf("%lld", -42); // prints "4294967254"
- // but we don't have to do the same because it's a UB.
- arg_ = detail::make_arg<Context>(static_cast<long long>(value));
- } else {
- arg_ = detail::make_arg<Context>(
- static_cast<typename make_unsigned_or_bool<U>::type>(value));
- }
- }
- }
-
- template <typename U, FMT_ENABLE_IF(!std::is_integral<U>::value)>
- void operator()(U) {} // No conversion needed for non-integral types.
-};
-
-// Converts an integer argument to T for printf, if T is an integral type.
-// If T is void, the argument is converted to corresponding signed or unsigned
-// type depending on the type specifier: 'd' and 'i' - signed, other -
-// unsigned).
-template <typename T, typename Context, typename Char>
-void convert_arg(basic_format_arg<Context>& arg, Char type) {
- visit_format_arg(arg_converter<T, Context>(arg, type), arg);
-}
-
-// Converts an integer argument to char for printf.
-template <typename Context> class char_converter {
- private:
- basic_format_arg<Context>& arg_;
-
- public:
- explicit char_converter(basic_format_arg<Context>& arg) : arg_(arg) {}
-
- template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
- void operator()(T value) {
- arg_ = detail::make_arg<Context>(
- static_cast<typename Context::char_type>(value));
- }
-
- template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
- void operator()(T) {} // No conversion needed for non-integral types.
-};
-
-// An argument visitor that return a pointer to a C string if argument is a
-// string or null otherwise.
-template <typename Char> struct get_cstring {
- template <typename T> const Char* operator()(T) { return nullptr; }
- const Char* operator()(const Char* s) { return s; }
-};
-
-// Checks if an argument is a valid printf width specifier and sets
-// left alignment if it is negative.
-template <typename Char> class printf_width_handler {
- private:
- using format_specs = basic_format_specs<Char>;
-
- format_specs& specs_;
-
- public:
- explicit printf_width_handler(format_specs& specs) : specs_(specs) {}
-
- template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
- unsigned operator()(T value) {
- auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
- if (detail::is_negative(value)) {
- specs_.align = align::left;
- width = 0 - width;
- }
- unsigned int_max = max_value<int>();
- if (width > int_max) FMT_THROW(format_error("number is too big"));
- return static_cast<unsigned>(width);
- }
-
- template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
- unsigned operator()(T) {
- FMT_THROW(format_error("width is not integer"));
- return 0;
- }
-};
-
-template <typename Char, typename Context>
-void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
- basic_format_args<Context> args) {
- Context(buffer_appender<Char>(buf), format, args).format();
-}
-} // namespace detail
-
-// For printing into memory_buffer.
-template <typename Char, typename Context>
-FMT_DEPRECATED void printf(detail::buffer<Char>& buf,
- basic_string_view<Char> format,
- basic_format_args<Context> args) {
- return detail::vprintf(buf, format, args);
-}
-using detail::vprintf;
-
-template <typename Char>
-class basic_printf_parse_context : public basic_format_parse_context<Char> {
- using basic_format_parse_context<Char>::basic_format_parse_context;
-};
-template <typename OutputIt, typename Char> class basic_printf_context;
-
-/**
- \rst
- The ``printf`` argument formatter.
- \endrst
- */
-template <typename OutputIt, typename Char>
-class printf_arg_formatter : public detail::arg_formatter_base<OutputIt, Char> {
- public:
- using iterator = OutputIt;
-
- private:
- using char_type = Char;
- using base = detail::arg_formatter_base<OutputIt, Char>;
- using context_type = basic_printf_context<OutputIt, Char>;
-
- context_type& context_;
-
- void write_null_pointer(char) {
- this->specs()->type = 0;
- this->write("(nil)");
- }
-
- void write_null_pointer(wchar_t) {
- this->specs()->type = 0;
- this->write(L"(nil)");
- }
-
- public:
- using format_specs = typename base::format_specs;
-
- /**
- \rst
- Constructs an argument formatter object.
- *buffer* is a reference to the output buffer and *specs* contains format
- specifier information for standard argument types.
- \endrst
- */
- printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx)
- : base(iter, &specs, detail::locale_ref()), context_(ctx) {}
-
- template <typename T, FMT_ENABLE_IF(fmt::detail::is_integral<T>::value)>
- iterator operator()(T value) {
- // MSVC2013 fails to compile separate overloads for bool and char_type so
- // use std::is_same instead.
- if (std::is_same<T, bool>::value) {
- format_specs& fmt_specs = *this->specs();
- if (fmt_specs.type != 's') return base::operator()(value ? 1 : 0);
- fmt_specs.type = 0;
- this->write(value != 0);
- } else if (std::is_same<T, char_type>::value) {
- format_specs& fmt_specs = *this->specs();
- if (fmt_specs.type && fmt_specs.type != 'c')
- return (*this)(static_cast<int>(value));
- fmt_specs.sign = sign::none;
- fmt_specs.alt = false;
- fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types.
- // align::numeric needs to be overwritten here since the '0' flag is
- // ignored for non-numeric types
- if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
- fmt_specs.align = align::right;
- return base::operator()(value);
- } else {
- return base::operator()(value);
- }
- return this->out();
- }
-
- template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
- iterator operator()(T value) {
- return base::operator()(value);
- }
-
- /** Formats a null-terminated C string. */
- iterator operator()(const char* value) {
- if (value)
- base::operator()(value);
- else if (this->specs()->type == 'p')
- write_null_pointer(char_type());
- else
- this->write("(null)");
- return this->out();
- }
-
- /** Formats a null-terminated wide C string. */
- iterator operator()(const wchar_t* value) {
- if (value)
- base::operator()(value);
- else if (this->specs()->type == 'p')
- write_null_pointer(char_type());
- else
- this->write(L"(null)");
- return this->out();
- }
-
- iterator operator()(basic_string_view<char_type> value) {
- return base::operator()(value);
- }
-
- iterator operator()(monostate value) { return base::operator()(value); }
-
- /** Formats a pointer. */
- iterator operator()(const void* value) {
- if (value) return base::operator()(value);
- this->specs()->type = 0;
- write_null_pointer(char_type());
- return this->out();
- }
-
- /** Formats an argument of a custom (user-defined) type. */
- iterator operator()(typename basic_format_arg<context_type>::handle handle) {
- handle.format(context_.parse_context(), context_);
- return this->out();
- }
-};
-
-template <typename T> struct printf_formatter {
- printf_formatter() = delete;
-
- template <typename ParseContext>
- auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
-
- template <typename FormatContext>
- auto format(const T& value, FormatContext& ctx) -> decltype(ctx.out()) {
- detail::format_value(detail::get_container(ctx.out()), value);
- return ctx.out();
- }
-};
-
-/**
- This template formats data and writes the output through an output iterator.
- */
-template <typename OutputIt, typename Char> class basic_printf_context {
- public:
- /** The character type for the output. */
- using char_type = Char;
- using iterator = OutputIt;
- using format_arg = basic_format_arg<basic_printf_context>;
- using parse_context_type = basic_printf_parse_context<Char>;
- template <typename T> using formatter_type = printf_formatter<T>;
-
- private:
- using format_specs = basic_format_specs<char_type>;
-
- OutputIt out_;
- basic_format_args<basic_printf_context> args_;
- parse_context_type parse_ctx_;
-
- static void parse_flags(format_specs& specs, const Char*& it,
- const Char* end);
-
- // Returns the argument with specified index or, if arg_index is -1, the next
- // argument.
- format_arg get_arg(int arg_index = -1);
-
- // Parses argument index, flags and width and returns the argument index.
- int parse_header(const Char*& it, const Char* end, format_specs& specs);
-
- public:
- /**
- \rst
- Constructs a ``printf_context`` object. References to the arguments are
- stored in the context object so make sure they have appropriate lifetimes.
- \endrst
- */
- basic_printf_context(OutputIt out, basic_string_view<char_type> format_str,
- basic_format_args<basic_printf_context> args)
- : out_(out), args_(args), parse_ctx_(format_str) {}
-
- OutputIt out() { return out_; }
- void advance_to(OutputIt it) { out_ = it; }
-
- detail::locale_ref locale() { return {}; }
-
- format_arg arg(int id) const { return args_.get(id); }
-
- parse_context_type& parse_context() { return parse_ctx_; }
-
- FMT_CONSTEXPR void on_error(const char* message) {
- parse_ctx_.on_error(message);
- }
-
- /** Formats stored arguments and writes the output to the range. */
- template <typename ArgFormatter = printf_arg_formatter<OutputIt, Char>>
- OutputIt format();
-};
-
-template <typename OutputIt, typename Char>
-void basic_printf_context<OutputIt, Char>::parse_flags(format_specs& specs,
- const Char*& it,
- const Char* end) {
- for (; it != end; ++it) {
- switch (*it) {
- case '-':
- specs.align = align::left;
- break;
- case '+':
- specs.sign = sign::plus;
- break;
- case '0':
- specs.fill[0] = '0';
- break;
- case ' ':
- if (specs.sign != sign::plus) {
- specs.sign = sign::space;
- }
- break;
- case '#':
- specs.alt = true;
- break;
- default:
- return;
- }
- }
-}
-
-template <typename OutputIt, typename Char>
-typename basic_printf_context<OutputIt, Char>::format_arg
-basic_printf_context<OutputIt, Char>::get_arg(int arg_index) {
- if (arg_index < 0)
- arg_index = parse_ctx_.next_arg_id();
- else
- parse_ctx_.check_arg_id(--arg_index);
- return detail::get_arg(*this, arg_index);
-}
-
-template <typename OutputIt, typename Char>
-int basic_printf_context<OutputIt, Char>::parse_header(const Char*& it,
- const Char* end,
- format_specs& specs) {
- int arg_index = -1;
- char_type c = *it;
- if (c >= '0' && c <= '9') {
- // Parse an argument index (if followed by '$') or a width possibly
- // preceded with '0' flag(s).
- detail::error_handler eh;
- int value = parse_nonnegative_int(it, end, eh);
- if (it != end && *it == '$') { // value is an argument index
- ++it;
- arg_index = value;
- } else {
- if (c == '0') specs.fill[0] = '0';
- if (value != 0) {
- // Nonzero value means that we parsed width and don't need to
- // parse it or flags again, so return now.
- specs.width = value;
- return arg_index;
- }
- }
- }
- parse_flags(specs, it, end);
- // Parse width.
- if (it != end) {
- if (*it >= '0' && *it <= '9') {
- detail::error_handler eh;
- specs.width = parse_nonnegative_int(it, end, eh);
- } else if (*it == '*') {
- ++it;
- specs.width = static_cast<int>(visit_format_arg(
- detail::printf_width_handler<char_type>(specs), get_arg()));
- }
- }
- return arg_index;
-}
-
-template <typename OutputIt, typename Char>
-template <typename ArgFormatter>
-OutputIt basic_printf_context<OutputIt, Char>::format() {
- auto out = this->out();
- const Char* start = parse_ctx_.begin();
- const Char* end = parse_ctx_.end();
- auto it = start;
- while (it != end) {
- char_type c = *it++;
- if (c != '%') continue;
- if (it != end && *it == c) {
- out = std::copy(start, it, out);
- start = ++it;
- continue;
- }
- out = std::copy(start, it - 1, out);
-
- format_specs specs;
- specs.align = align::right;
-
- // Parse argument index, flags and width.
- int arg_index = parse_header(it, end, specs);
- if (arg_index == 0) on_error("argument not found");
-
- // Parse precision.
- if (it != end && *it == '.') {
- ++it;
- c = it != end ? *it : 0;
- if ('0' <= c && c <= '9') {
- detail::error_handler eh;
- specs.precision = parse_nonnegative_int(it, end, eh);
- } else if (c == '*') {
- ++it;
- specs.precision = static_cast<int>(
- visit_format_arg(detail::printf_precision_handler(), get_arg()));
- } else {
- specs.precision = 0;
- }
- }
-
- format_arg arg = get_arg(arg_index);
- // For d, i, o, u, x, and X conversion specifiers, if a precision is
- // specified, the '0' flag is ignored
- if (specs.precision >= 0 && arg.is_integral())
- specs.fill[0] =
- ' '; // Ignore '0' flag for non-numeric types or if '-' present.
- if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) {
- auto str = visit_format_arg(detail::get_cstring<Char>(), arg);
- auto str_end = str + specs.precision;
- auto nul = std::find(str, str_end, Char());
- arg = detail::make_arg<basic_printf_context>(basic_string_view<Char>(
- str,
- detail::to_unsigned(nul != str_end ? nul - str : specs.precision)));
- }
- if (specs.alt && visit_format_arg(detail::is_zero_int(), arg))
- specs.alt = false;
- if (specs.fill[0] == '0') {
- if (arg.is_arithmetic() && specs.align != align::left)
- specs.align = align::numeric;
- else
- specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-'
- // flag is also present.
- }
-
- // Parse length and convert the argument to the required type.
- c = it != end ? *it++ : 0;
- char_type t = it != end ? *it : 0;
- using detail::convert_arg;
- switch (c) {
- case 'h':
- if (t == 'h') {
- ++it;
- t = it != end ? *it : 0;
- convert_arg<signed char>(arg, t);
- } else {
- convert_arg<short>(arg, t);
- }
- break;
- case 'l':
- if (t == 'l') {
- ++it;
- t = it != end ? *it : 0;
- convert_arg<long long>(arg, t);
- } else {
- convert_arg<long>(arg, t);
- }
- break;
- case 'j':
- convert_arg<intmax_t>(arg, t);
- break;
- case 'z':
- convert_arg<size_t>(arg, t);
- break;
- case 't':
- convert_arg<std::ptrdiff_t>(arg, t);
- break;
- case 'L':
- // printf produces garbage when 'L' is omitted for long double, no
- // need to do the same.
- break;
- default:
- --it;
- convert_arg<void>(arg, c);
- }
-
- // Parse type.
- if (it == end) FMT_THROW(format_error("invalid format string"));
- specs.type = static_cast<char>(*it++);
- if (arg.is_integral()) {
- // Normalize type.
- switch (specs.type) {
- case 'i':
- case 'u':
- specs.type = 'd';
- break;
- case 'c':
- visit_format_arg(detail::char_converter<basic_printf_context>(arg),
- arg);
- break;
- }
- }
-
- start = it;
-
- // Format argument.
- out = visit_format_arg(ArgFormatter(out, specs, *this), arg);
- }
- return std::copy(start, it, out);
-}
-
-template <typename Char>
-using basic_printf_context_t =
- basic_printf_context<detail::buffer_appender<Char>, Char>;
-
-using printf_context = basic_printf_context_t<char>;
-using wprintf_context = basic_printf_context_t<wchar_t>;
-
-using printf_args = basic_format_args<printf_context>;
-using wprintf_args = basic_format_args<wprintf_context>;
-
-/**
- \rst
- Constructs an `~fmt::format_arg_store` object that contains references to
- arguments and can be implicitly converted to `~fmt::printf_args`.
- \endrst
- */
-template <typename... Args>
-inline format_arg_store<printf_context, Args...> make_printf_args(
- const Args&... args) {
- return {args...};
-}
-
-/**
- \rst
- Constructs an `~fmt::format_arg_store` object that contains references to
- arguments and can be implicitly converted to `~fmt::wprintf_args`.
- \endrst
- */
-template <typename... Args>
-inline format_arg_store<wprintf_context, Args...> make_wprintf_args(
- const Args&... args) {
- return {args...};
-}
-
-template <typename S, typename Char = char_t<S>>
-inline std::basic_string<Char> vsprintf(
- const S& format,
- basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
- basic_memory_buffer<Char> buffer;
- vprintf(buffer, to_string_view(format), args);
- return to_string(buffer);
-}
-
-/**
- \rst
- Formats arguments and returns the result as a string.
-
- **Example**::
-
- std::string message = fmt::sprintf("The answer is %d", 42);
- \endrst
-*/
-template <typename S, typename... Args,
- typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
-inline std::basic_string<Char> sprintf(const S& format, const Args&... args) {
- using context = basic_printf_context_t<Char>;
- return vsprintf(to_string_view(format), make_format_args<context>(args...));
-}
-
-template <typename S, typename Char = char_t<S>>
-inline int vfprintf(
- std::FILE* f, const S& format,
- basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
- basic_memory_buffer<Char> buffer;
- vprintf(buffer, to_string_view(format), args);
- size_t size = buffer.size();
- return std::fwrite(buffer.data(), sizeof(Char), size, f) < size
- ? -1
- : static_cast<int>(size);
-}
-
-/**
- \rst
- Prints formatted data to the file *f*.
-
- **Example**::
-
- fmt::fprintf(stderr, "Don't %s!", "panic");
- \endrst
- */
-template <typename S, typename... Args,
- typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
-inline int fprintf(std::FILE* f, const S& format, const Args&... args) {
- using context = basic_printf_context_t<Char>;
- return vfprintf(f, to_string_view(format),
- make_format_args<context>(args...));
-}
-
-template <typename S, typename Char = char_t<S>>
-inline int vprintf(
- const S& format,
- basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
- return vfprintf(stdout, to_string_view(format), args);
-}
-
-/**
- \rst
- Prints formatted data to ``stdout``.
-
- **Example**::
-
- fmt::printf("Elapsed time: %.2f seconds", 1.23);
- \endrst
- */
-template <typename S, typename... Args,
- FMT_ENABLE_IF(detail::is_string<S>::value)>
-inline int printf(const S& format_str, const Args&... args) {
- using context = basic_printf_context_t<char_t<S>>;
- return vprintf(to_string_view(format_str),
- make_format_args<context>(args...));
-}
-
-template <typename S, typename Char = char_t<S>>
-inline int vfprintf(
- std::basic_ostream<Char>& os, const S& format,
- basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
- basic_memory_buffer<Char> buffer;
- vprintf(buffer, to_string_view(format), args);
- detail::write_buffer(os, buffer);
- return static_cast<int>(buffer.size());
-}
-
-/** Formats arguments and writes the output to the range. */
-template <typename ArgFormatter, typename Char,
- typename Context =
- basic_printf_context<typename ArgFormatter::iterator, Char>>
-typename ArgFormatter::iterator vprintf(
- detail::buffer<Char>& out, basic_string_view<Char> format_str,
- basic_format_args<type_identity_t<Context>> args) {
- typename ArgFormatter::iterator iter(out);
- Context(iter, format_str, args).template format<ArgFormatter>();
- return iter;
-}
-
-/**
- \rst
- Prints formatted data to the stream *os*.
-
- **Example**::
-
- fmt::fprintf(cerr, "Don't %s!", "panic");
- \endrst
- */
-template <typename S, typename... Args, typename Char = char_t<S>>
-inline int fprintf(std::basic_ostream<Char>& os, const S& format_str,
- const Args&... args) {
- using context = basic_printf_context_t<Char>;
- return vfprintf(os, to_string_view(format_str),
- make_format_args<context>(args...));
-}
-FMT_END_NAMESPACE
-
-#endif // FMT_PRINTF_H_
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 06:28:24 +0000