forked from KolibriOS/kolibrios
486 lines
17 KiB
C++
486 lines
17 KiB
C++
// <decimal> -*- C++ -*-
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// Copyright (C) 2009-2013 Free Software Foundation, Inc.
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file decimal/decimal
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* This is a Standard C++ Library header.
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*/
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// ISO/IEC TR 24733
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// Written by Janis Johnson <janis187@us.ibm.com>
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#ifndef _GLIBCXX_DECIMAL
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#define _GLIBCXX_DECIMAL 1
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#pragma GCC system_header
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#include <bits/c++config.h>
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#ifndef _GLIBCXX_USE_DECIMAL_FLOAT
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#error This file requires compiler and library support for ISO/IEC TR 24733 \
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that is currently not available.
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#endif
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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/**
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* @defgroup decimal Decimal Floating-Point Arithmetic
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* @ingroup numerics
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*
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* Classes and functions for decimal floating-point arithmetic.
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* @{
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*/
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/** @namespace std::decimal
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* @brief ISO/IEC TR 24733 Decimal floating-point arithmetic.
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*/
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namespace decimal
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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class decimal32;
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class decimal64;
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class decimal128;
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// 3.2.5 Initialization from coefficient and exponent.
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static decimal32 make_decimal32(long long __coeff, int __exp);
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static decimal32 make_decimal32(unsigned long long __coeff, int __exp);
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static decimal64 make_decimal64(long long __coeff, int __exp);
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static decimal64 make_decimal64(unsigned long long __coeff, int __exp);
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static decimal128 make_decimal128(long long __coeff, int __exp);
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static decimal128 make_decimal128(unsigned long long __coeff, int __exp);
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/// Non-conforming extension: Conversion to integral type.
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long long decimal32_to_long_long(decimal32 __d);
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long long decimal64_to_long_long(decimal64 __d);
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long long decimal128_to_long_long(decimal128 __d);
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long long decimal_to_long_long(decimal32 __d);
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long long decimal_to_long_long(decimal64 __d);
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long long decimal_to_long_long(decimal128 __d);
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// 3.2.6 Conversion to generic floating-point type.
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float decimal32_to_float(decimal32 __d);
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float decimal64_to_float(decimal64 __d);
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float decimal128_to_float(decimal128 __d);
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float decimal_to_float(decimal32 __d);
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float decimal_to_float(decimal64 __d);
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float decimal_to_float(decimal128 __d);
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double decimal32_to_double(decimal32 __d);
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double decimal64_to_double(decimal64 __d);
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double decimal128_to_double(decimal128 __d);
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double decimal_to_double(decimal32 __d);
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double decimal_to_double(decimal64 __d);
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double decimal_to_double(decimal128 __d);
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long double decimal32_to_long_double(decimal32 __d);
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long double decimal64_to_long_double(decimal64 __d);
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long double decimal128_to_long_double(decimal128 __d);
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long double decimal_to_long_double(decimal32 __d);
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long double decimal_to_long_double(decimal64 __d);
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long double decimal_to_long_double(decimal128 __d);
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// 3.2.7 Unary arithmetic operators.
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decimal32 operator+(decimal32 __rhs);
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decimal64 operator+(decimal64 __rhs);
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decimal128 operator+(decimal128 __rhs);
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decimal32 operator-(decimal32 __rhs);
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decimal64 operator-(decimal64 __rhs);
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decimal128 operator-(decimal128 __rhs);
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// 3.2.8 Binary arithmetic operators.
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#define _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(_Op, _T1, _T2, _T3) \
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_T1 operator _Op(_T2 __lhs, _T3 __rhs);
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#define _DECLARE_DECIMAL_BINARY_OP_WITH_INT(_Op, _Tp) \
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_Tp operator _Op(_Tp __lhs, int __rhs); \
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_Tp operator _Op(_Tp __lhs, unsigned int __rhs); \
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_Tp operator _Op(_Tp __lhs, long __rhs); \
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_Tp operator _Op(_Tp __lhs, unsigned long __rhs); \
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_Tp operator _Op(_Tp __lhs, long long __rhs); \
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_Tp operator _Op(_Tp __lhs, unsigned long long __rhs); \
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_Tp operator _Op(int __lhs, _Tp __rhs); \
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_Tp operator _Op(unsigned int __lhs, _Tp __rhs); \
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_Tp operator _Op(long __lhs, _Tp __rhs); \
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_Tp operator _Op(unsigned long __lhs, _Tp __rhs); \
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_Tp operator _Op(long long __lhs, _Tp __rhs); \
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_Tp operator _Op(unsigned long long __lhs, _Tp __rhs);
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal32, decimal32, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal32, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal32, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal64, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal32, decimal32, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal32, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal32, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal64, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal32, decimal32, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal32, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal32, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal64, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal32, decimal32, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal32, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal32, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal64, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal32)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal64)
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_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal128)
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_DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal128)
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#undef _DECLARE_DECIMAL_BINARY_OP_WITH_DEC
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#undef _DECLARE_DECIMAL_BINARY_OP_WITH_INT
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// 3.2.9 Comparison operators.
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#define _DECLARE_DECIMAL_COMPARISON(_Op, _Tp) \
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bool operator _Op(_Tp __lhs, decimal32 __rhs); \
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bool operator _Op(_Tp __lhs, decimal64 __rhs); \
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bool operator _Op(_Tp __lhs, decimal128 __rhs); \
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bool operator _Op(_Tp __lhs, int __rhs); \
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bool operator _Op(_Tp __lhs, unsigned int __rhs); \
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bool operator _Op(_Tp __lhs, long __rhs); \
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bool operator _Op(_Tp __lhs, unsigned long __rhs); \
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bool operator _Op(_Tp __lhs, long long __rhs); \
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bool operator _Op(_Tp __lhs, unsigned long long __rhs); \
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bool operator _Op(int __lhs, _Tp __rhs); \
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bool operator _Op(unsigned int __lhs, _Tp __rhs); \
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bool operator _Op(long __lhs, _Tp __rhs); \
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bool operator _Op(unsigned long __lhs, _Tp __rhs); \
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bool operator _Op(long long __lhs, _Tp __rhs); \
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bool operator _Op(unsigned long long __lhs, _Tp __rhs);
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_DECLARE_DECIMAL_COMPARISON(==, decimal32)
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_DECLARE_DECIMAL_COMPARISON(==, decimal64)
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_DECLARE_DECIMAL_COMPARISON(==, decimal128)
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_DECLARE_DECIMAL_COMPARISON(!=, decimal32)
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_DECLARE_DECIMAL_COMPARISON(!=, decimal64)
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_DECLARE_DECIMAL_COMPARISON(!=, decimal128)
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_DECLARE_DECIMAL_COMPARISON(<, decimal32)
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_DECLARE_DECIMAL_COMPARISON(<, decimal64)
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_DECLARE_DECIMAL_COMPARISON(<, decimal128)
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_DECLARE_DECIMAL_COMPARISON(>=, decimal32)
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_DECLARE_DECIMAL_COMPARISON(>=, decimal64)
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_DECLARE_DECIMAL_COMPARISON(>=, decimal128)
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_DECLARE_DECIMAL_COMPARISON(>, decimal32)
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_DECLARE_DECIMAL_COMPARISON(>, decimal64)
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_DECLARE_DECIMAL_COMPARISON(>, decimal128)
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_DECLARE_DECIMAL_COMPARISON(>=, decimal32)
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_DECLARE_DECIMAL_COMPARISON(>=, decimal64)
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_DECLARE_DECIMAL_COMPARISON(>=, decimal128)
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#undef _DECLARE_DECIMAL_COMPARISON
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/// 3.2.2 Class decimal32.
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class decimal32
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{
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public:
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typedef float __decfloat32 __attribute__((mode(SD)));
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// 3.2.2.2 Construct/copy/destroy.
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decimal32() : __val(0.e-101DF) {}
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// 3.2.2.3 Conversion from floating-point type.
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explicit decimal32(decimal64 __d64);
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explicit decimal32(decimal128 __d128);
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explicit decimal32(float __r) : __val(__r) {}
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explicit decimal32(double __r) : __val(__r) {}
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explicit decimal32(long double __r) : __val(__r) {}
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// 3.2.2.4 Conversion from integral type.
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decimal32(int __z) : __val(__z) {}
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decimal32(unsigned int __z) : __val(__z) {}
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decimal32(long __z) : __val(__z) {}
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decimal32(unsigned long __z) : __val(__z) {}
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decimal32(long long __z) : __val(__z) {}
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decimal32(unsigned long long __z) : __val(__z) {}
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/// Conforming extension: Conversion from scalar decimal type.
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decimal32(__decfloat32 __z) : __val(__z) {}
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// 3.2.2.5 Conversion to integral type. (DISABLED)
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//operator long long() const { return (long long)__val; }
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// 3.2.2.6 Increment and decrement operators.
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decimal32& operator++()
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{
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__val += 1;
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return *this;
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}
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decimal32 operator++(int)
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{
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decimal32 __tmp = *this;
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__val += 1;
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return __tmp;
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}
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decimal32& operator--()
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{
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__val -= 1;
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return *this;
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}
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decimal32 operator--(int)
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{
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decimal32 __tmp = *this;
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__val -= 1;
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return __tmp;
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}
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// 3.2.2.7 Compound assignment.
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#define _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(_Op) \
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decimal32& operator _Op(decimal32 __rhs); \
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decimal32& operator _Op(decimal64 __rhs); \
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decimal32& operator _Op(decimal128 __rhs); \
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decimal32& operator _Op(int __rhs); \
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decimal32& operator _Op(unsigned int __rhs); \
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decimal32& operator _Op(long __rhs); \
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decimal32& operator _Op(unsigned long __rhs); \
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decimal32& operator _Op(long long __rhs); \
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decimal32& operator _Op(unsigned long long __rhs);
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_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(+=)
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_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(-=)
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_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(*=)
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_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(/=)
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#undef _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT
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private:
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__decfloat32 __val;
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public:
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__decfloat32 __getval(void) { return __val; }
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void __setval(__decfloat32 __x) { __val = __x; }
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};
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/// 3.2.3 Class decimal64.
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class decimal64
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{
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public:
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typedef float __decfloat64 __attribute__((mode(DD)));
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// 3.2.3.2 Construct/copy/destroy.
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decimal64() : __val(0.e-398dd) {}
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// 3.2.3.3 Conversion from floating-point type.
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decimal64(decimal32 d32);
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explicit decimal64(decimal128 d128);
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explicit decimal64(float __r) : __val(__r) {}
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explicit decimal64(double __r) : __val(__r) {}
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explicit decimal64(long double __r) : __val(__r) {}
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// 3.2.3.4 Conversion from integral type.
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decimal64(int __z) : __val(__z) {}
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decimal64(unsigned int __z) : __val(__z) {}
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decimal64(long __z) : __val(__z) {}
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decimal64(unsigned long __z) : __val(__z) {}
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decimal64(long long __z) : __val(__z) {}
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decimal64(unsigned long long __z) : __val(__z) {}
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/// Conforming extension: Conversion from scalar decimal type.
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decimal64(__decfloat64 __z) : __val(__z) {}
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// 3.2.3.5 Conversion to integral type. (DISABLED)
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//operator long long() const { return (long long)__val; }
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// 3.2.3.6 Increment and decrement operators.
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decimal64& operator++()
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{
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__val += 1;
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return *this;
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}
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decimal64 operator++(int)
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{
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decimal64 __tmp = *this;
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__val += 1;
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return __tmp;
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}
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decimal64& operator--()
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{
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__val -= 1;
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return *this;
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}
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decimal64 operator--(int)
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{
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decimal64 __tmp = *this;
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__val -= 1;
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return __tmp;
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}
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// 3.2.3.7 Compound assignment.
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#define _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(_Op) \
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decimal64& operator _Op(decimal32 __rhs); \
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decimal64& operator _Op(decimal64 __rhs); \
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decimal64& operator _Op(decimal128 __rhs); \
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decimal64& operator _Op(int __rhs); \
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decimal64& operator _Op(unsigned int __rhs); \
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decimal64& operator _Op(long __rhs); \
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decimal64& operator _Op(unsigned long __rhs); \
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decimal64& operator _Op(long long __rhs); \
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decimal64& operator _Op(unsigned long long __rhs);
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_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(+=)
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_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(-=)
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_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(*=)
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_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(/=)
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#undef _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT
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private:
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__decfloat64 __val;
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public:
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__decfloat64 __getval(void) { return __val; }
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void __setval(__decfloat64 __x) { __val = __x; }
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};
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/// 3.2.4 Class decimal128.
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class decimal128
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{
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public:
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typedef float __decfloat128 __attribute__((mode(TD)));
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// 3.2.4.2 Construct/copy/destroy.
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decimal128() : __val(0.e-6176DL) {}
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// 3.2.4.3 Conversion from floating-point type.
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decimal128(decimal32 d32);
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decimal128(decimal64 d64);
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explicit decimal128(float __r) : __val(__r) {}
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explicit decimal128(double __r) : __val(__r) {}
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explicit decimal128(long double __r) : __val(__r) {}
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// 3.2.4.4 Conversion from integral type.
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decimal128(int __z) : __val(__z) {}
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decimal128(unsigned int __z) : __val(__z) {}
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decimal128(long __z) : __val(__z) {}
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decimal128(unsigned long __z) : __val(__z) {}
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decimal128(long long __z) : __val(__z) {}
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decimal128(unsigned long long __z) : __val(__z) {}
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/// Conforming extension: Conversion from scalar decimal type.
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decimal128(__decfloat128 __z) : __val(__z) {}
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// 3.2.4.5 Conversion to integral type. (DISABLED)
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//operator long long() const { return (long long)__val; }
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// 3.2.4.6 Increment and decrement operators.
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decimal128& operator++()
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{
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__val += 1;
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return *this;
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}
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decimal128 operator++(int)
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{
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decimal128 __tmp = *this;
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__val += 1;
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return __tmp;
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}
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|
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decimal128& operator--()
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{
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|
__val -= 1;
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|
return *this;
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}
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decimal128 operator--(int)
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|
{
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|
decimal128 __tmp = *this;
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|
__val -= 1;
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|
return __tmp;
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|
}
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// 3.2.4.7 Compound assignment.
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#define _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(_Op) \
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decimal128& operator _Op(decimal32 __rhs); \
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decimal128& operator _Op(decimal64 __rhs); \
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decimal128& operator _Op(decimal128 __rhs); \
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decimal128& operator _Op(int __rhs); \
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|
decimal128& operator _Op(unsigned int __rhs); \
|
|
decimal128& operator _Op(long __rhs); \
|
|
decimal128& operator _Op(unsigned long __rhs); \
|
|
decimal128& operator _Op(long long __rhs); \
|
|
decimal128& operator _Op(unsigned long long __rhs);
|
|
|
|
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(+=)
|
|
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(-=)
|
|
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(*=)
|
|
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(/=)
|
|
#undef _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT
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|
|
|
private:
|
|
__decfloat128 __val;
|
|
|
|
public:
|
|
__decfloat128 __getval(void) { return __val; }
|
|
void __setval(__decfloat128 __x) { __val = __x; }
|
|
};
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|
|
|
#define _GLIBCXX_USE_DECIMAL_ 1
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|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace decimal
|
|
// @} group decimal
|
|
} // namespace std
|
|
|
|
#include <decimal/decimal.h>
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|
|
|
#endif /* _GLIBCXX_DECIMAL */
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