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Decimal data type for fixed-point arithmetic.
Definition in file decimal64.hpp.
Go to the source code of this file.
#include <array>#include <cassert>#include <cstdint>#include <ios>#include <iosfwd>#include <istream>#include <limits>#include <numeric>#include <optional>#include <stdexcept>#include <string>#include <string_view>#include <type_traits>#include <fmt/compile.h>#include <fmt/format.h>#include <userver/decimal64/format_options.hpp>#include <userver/formats/common/meta.hpp>#include <userver/utils/assert.hpp>#include <userver/utils/flags.hpp>#include <userver/utils/meta_light.hpp>
Include dependency graph for decimal64.hpp: This graph shows which files directly or indirectly include this file:Classes | |
| class | decimal64::DecimalError |
| The base class for Decimal-related exceptions. More... | |
| class | decimal64::ParseError |
Thrown on all errors related to parsing Decimal from string. More... | |
| class | decimal64::OutOfBoundsError |
Thrown on overflow in Decimal arithmetic. More... | |
| class | decimal64::DivisionByZeroError |
Thrown on division by zero in Decimal arithmetic. More... | |
| class | decimal64::DefRoundPolicy |
| Default rounding. Fast, rounds to nearest. More... | |
| class | decimal64::HalfDownRoundPolicy |
| Round to nearest, 0.5 towards zero. More... | |
| class | decimal64::HalfUpRoundPolicy |
| Round to nearest, 0.5 away from zero. More... | |
| class | decimal64::HalfEvenRoundPolicy |
| Round to nearest, 0.5 towards number with even last digit. More... | |
| class | decimal64::CeilingRoundPolicy |
| Round towards +infinity. More... | |
| class | decimal64::FloorRoundPolicy |
| Round towards -infinity. More... | |
| class | decimal64::RoundDownRoundPolicy |
| Round towards zero. The fastest rounding. More... | |
| class | decimal64::RoundUpRoundPolicy |
| Round away from zero. More... | |
| class | decimal64::Decimal< Prec, RoundPolicy_ > |
| Fixed-point decimal data type for use in deterministic calculations, oftentimes involving money. More... | |
| struct | std::hash<::decimal64::Decimal< Prec, RoundPolicy > > |
| std::hash support More... | |
| class | fmt::formatter<::decimal64::Decimal< Prec, RoundPolicy >, Char > |
| fmt support More... | |
Namespaces | |
| namespace | logging |
| Logging macro and utilities. | |
| namespace | decimal64 |
| Fixed-point decimal data type and related functions. | |
Functions | |
| constexpr int64_t | decimal64::Pow10 (int exp) |
| A fast, constexpr-friendly power of 10. | |
| template<typename T , int OldPrec, typename OldRound > | |
| constexpr T | decimal64::decimal_cast (Decimal< OldPrec, OldRound > arg) |
Cast one Decimal to another Decimal type. | |
| template<int Prec, typename RoundPolicy > | |
| std::string | decimal64::ToString (Decimal< Prec, RoundPolicy > dec) |
| Converts Decimal to a string. | |
| template<int Prec, typename RoundPolicy > | |
| std::string | decimal64::ToString (const Decimal< Prec, RoundPolicy > &dec, const FormatOptions &format_options) |
| Converts Decimal to a string. | |
| template<int Prec, typename RoundPolicy > | |
| std::string | decimal64::ToStringTrailingZeros (Decimal< Prec, RoundPolicy > dec) |
Converts Decimal to a string, writing exactly Prec decimal digits. | |
| template<int NewPrec, int Prec, typename RoundPolicy > | |
| std::string | decimal64::ToStringFixed (Decimal< Prec, RoundPolicy > dec) |
Converts Decimal to a string with exactly NewPrec decimal digits. | |
| template<typename CharT , typename Traits , int Prec, typename RoundPolicy > | |
| std::basic_istream< CharT, Traits > & | decimal64::operator>> (std::basic_istream< CharT, Traits > &is, Decimal< Prec, RoundPolicy > &d) |
Parses a Decimal from the istream | |
| template<typename CharT , typename Traits , int Prec, typename RoundPolicy > | |
| std::basic_ostream< CharT, Traits > & | decimal64::operator<< (std::basic_ostream< CharT, Traits > &os, const Decimal< Prec, RoundPolicy > &d) |
Writes the Decimal to the ostream | |
| template<int Prec, typename RoundPolicy > | |
| logging::LogHelper & | decimal64::operator<< (logging::LogHelper &lh, const Decimal< Prec, RoundPolicy > &d) |
Writes the Decimal to the logger. | |
| template<int Prec, typename RoundPolicy , typename Value > | |
| std::enable_if_t< formats::common::kIsFormatValue< Value >, Decimal< Prec, RoundPolicy > > | decimal64::Parse (const Value &value, formats::parse::To< Decimal< Prec, RoundPolicy > >) |
Parses the Decimal from the string. | |
| template<int Prec, typename RoundPolicy , typename TargetType > | |
| TargetType | decimal64::Serialize (const Decimal< Prec, RoundPolicy > &object, formats::serialize::To< TargetType >) |
Serializes the Decimal to string. | |
| template<int Prec, typename RoundPolicy , typename StringBuilder > | |
| void | decimal64::WriteToStream (const Decimal< Prec, RoundPolicy > &object, StringBuilder &sw) |
Writes the Decimal to stream. | |
Variables | |
| template<int Exp> | |
| constexpr int64_t | decimal64::kPow10 = Pow10(Exp) |
| A guaranteed-compile-time power of 10. | |
| template<typename T > | |
| constexpr bool | decimal64::kIsDecimal = impl::IsDecimal<T>::value |
true if the type is an instantiation of Decimal | |