forked from KolibriOS/kolibrios
469 lines
17 KiB
C++
469 lines
17 KiB
C++
// decimal classes -*- 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.h
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{decimal}
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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_IMPL
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#define _GLIBCXX_DECIMAL_IMPL 1
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#pragma GCC system_header
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namespace std _GLIBCXX_VISIBILITY(default)
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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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// ISO/IEC TR 24733 3.2.[234].1 Construct/copy/destroy.
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inline decimal32::decimal32(decimal64 __r) : __val(__r.__getval()) {}
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inline decimal32::decimal32(decimal128 __r) : __val(__r.__getval()) {}
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inline decimal64::decimal64(decimal32 __r) : __val(__r.__getval()) {}
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inline decimal64::decimal64(decimal128 __r) : __val(__r.__getval()) {}
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inline decimal128::decimal128(decimal32 __r) : __val(__r.__getval()) {}
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inline decimal128::decimal128(decimal64 __r) : __val(__r.__getval()) {}
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// ISO/IEC TR 24733 3.2.[234].6 Compound assignment.
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#define _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, _T2) \
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inline _T1& _T1::operator _Op1(_T2 __rhs) \
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{ \
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__setval(__getval() _Op2 __rhs.__getval()); \
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return *this; \
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}
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#define _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, _T2) \
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inline _T1& _T1::operator _Op1(_T2 __rhs) \
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{ \
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__setval(__getval() _Op2 __rhs); \
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return *this; \
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}
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#define _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(_Op1, _Op2, _T1) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, decimal32) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, decimal64) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC(_Op1, _Op2, _T1, decimal128) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, int) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, unsigned int) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, long) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, unsigned long)\
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, long long) \
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT(_Op1, _Op2, _T1, unsigned long long)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(+=, +, decimal32)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(-=, -, decimal32)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(*=, *, decimal32)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(/=, /, decimal32)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(+=, +, decimal64)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(-=, -, decimal64)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(*=, *, decimal64)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(/=, /, decimal64)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(+=, +, decimal128)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(-=, -, decimal128)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(*=, *, decimal128)
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_DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS(/=, /, decimal128)
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#undef _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_DEC
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#undef _DEFINE_DECIMAL_COMPOUND_ASSIGNMENT_INT
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#undef _DEFINE_DECIMAL_COMPOUND_ASSIGNMENTS
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// Extension: Conversion to integral type.
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inline long long decimal32_to_long_long(decimal32 __d)
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{ return (long long)__d.__getval(); }
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inline long long decimal64_to_long_long(decimal64 __d)
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{ return (long long)__d.__getval(); }
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inline long long decimal128_to_long_long(decimal128 __d)
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{ return (long long)__d.__getval(); }
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inline long long decimal_to_long_long(decimal32 __d)
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{ return (long long)__d.__getval(); }
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inline long long decimal_to_long_long(decimal64 __d)
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{ return (long long)__d.__getval(); }
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inline long long decimal_to_long_long(decimal128 __d)
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{ return (long long)__d.__getval(); }
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// ISO/IEC TR 24733 3.2.5 Initialization from coefficient and exponent.
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static decimal32 make_decimal32(long long __coeff, int __exponent)
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{
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decimal32 __decexp = 1, __multiplier;
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if (__exponent < 0)
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{
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__multiplier = 1.E-1DF;
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__exponent = -__exponent;
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}
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else
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__multiplier = 1.E1DF;
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for (int __i = 0; __i < __exponent; ++__i)
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__decexp *= __multiplier;
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return __coeff * __decexp;
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}
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static decimal32 make_decimal32(unsigned long long __coeff, int __exponent)
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{
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decimal32 __decexp = 1, __multiplier;
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if (__exponent < 0)
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{
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__multiplier = 1.E-1DF;
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__exponent = -__exponent;
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}
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else
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__multiplier = 1.E1DF;
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for (int __i = 0; __i < __exponent; ++__i)
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__decexp *= __multiplier;
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return __coeff * __decexp;
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}
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static decimal64 make_decimal64(long long __coeff, int __exponent)
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{
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decimal64 __decexp = 1, __multiplier;
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if (__exponent < 0)
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{
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__multiplier = 1.E-1DD;
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__exponent = -__exponent;
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}
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else
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__multiplier = 1.E1DD;
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for (int __i = 0; __i < __exponent; ++__i)
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__decexp *= __multiplier;
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return __coeff * __decexp;
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}
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static decimal64 make_decimal64(unsigned long long __coeff, int __exponent)
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{
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decimal64 __decexp = 1, __multiplier;
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if (__exponent < 0)
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{
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__multiplier = 1.E-1DD;
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__exponent = -__exponent;
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}
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else
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__multiplier = 1.E1DD;
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for (int __i = 0; __i < __exponent; ++__i)
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__decexp *= __multiplier;
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return __coeff * __decexp;
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}
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static decimal128 make_decimal128(long long __coeff, int __exponent)
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{
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decimal128 __decexp = 1, __multiplier;
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if (__exponent < 0)
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{
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__multiplier = 1.E-1DL;
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__exponent = -__exponent;
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}
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else
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__multiplier = 1.E1DL;
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for (int __i = 0; __i < __exponent; ++__i)
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__decexp *= __multiplier;
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return __coeff * __decexp;
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}
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static decimal128 make_decimal128(unsigned long long __coeff, int __exponent)
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{
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decimal128 __decexp = 1, __multiplier;
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if (__exponent < 0)
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{
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__multiplier = 1.E-1DL;
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__exponent = -__exponent;
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}
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else
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__multiplier = 1.E1DL;
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for (int __i = 0; __i < __exponent; ++__i)
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__decexp *= __multiplier;
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return __coeff * __decexp;
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}
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// ISO/IEC TR 24733 3.2.6 Conversion to generic floating-point type.
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inline float decimal32_to_float(decimal32 __d)
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{ return (float)__d.__getval(); }
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inline float decimal64_to_float(decimal64 __d)
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{ return (float)__d.__getval(); }
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inline float decimal128_to_float(decimal128 __d)
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{ return (float)__d.__getval(); }
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inline float decimal_to_float(decimal32 __d)
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{ return (float)__d.__getval(); }
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inline float decimal_to_float(decimal64 __d)
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{ return (float)__d.__getval(); }
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inline float decimal_to_float(decimal128 __d)
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{ return (float)__d.__getval(); }
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inline double decimal32_to_double(decimal32 __d)
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{ return (double)__d.__getval(); }
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inline double decimal64_to_double(decimal64 __d)
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{ return (double)__d.__getval(); }
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inline double decimal128_to_double(decimal128 __d)
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{ return (double)__d.__getval(); }
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inline double decimal_to_double(decimal32 __d)
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{ return (double)__d.__getval(); }
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inline double decimal_to_double(decimal64 __d)
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{ return (double)__d.__getval(); }
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inline double decimal_to_double(decimal128 __d)
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{ return (double)__d.__getval(); }
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inline long double decimal32_to_long_double(decimal32 __d)
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{ return (long double)__d.__getval(); }
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inline long double decimal64_to_long_double(decimal64 __d)
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{ return (long double)__d.__getval(); }
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inline long double decimal128_to_long_double(decimal128 __d)
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{ return (long double)__d.__getval(); }
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inline long double decimal_to_long_double(decimal32 __d)
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{ return (long double)__d.__getval(); }
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inline long double decimal_to_long_double(decimal64 __d)
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{ return (long double)__d.__getval(); }
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inline long double decimal_to_long_double(decimal128 __d)
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{ return (long double)__d.__getval(); }
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// ISO/IEC TR 24733 3.2.7 Unary arithmetic operators.
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#define _DEFINE_DECIMAL_UNARY_OP(_Op, _Tp) \
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inline _Tp operator _Op(_Tp __rhs) \
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{ \
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_Tp __tmp; \
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__tmp.__setval(_Op __rhs.__getval()); \
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return __tmp; \
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}
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_DEFINE_DECIMAL_UNARY_OP(+, decimal32)
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_DEFINE_DECIMAL_UNARY_OP(+, decimal64)
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_DEFINE_DECIMAL_UNARY_OP(+, decimal128)
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_DEFINE_DECIMAL_UNARY_OP(-, decimal32)
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_DEFINE_DECIMAL_UNARY_OP(-, decimal64)
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_DEFINE_DECIMAL_UNARY_OP(-, decimal128)
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#undef _DEFINE_DECIMAL_UNARY_OP
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// ISO/IEC TR 24733 3.2.8 Binary arithmetic operators.
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#define _DEFINE_DECIMAL_BINARY_OP_WITH_DEC(_Op, _T1, _T2, _T3) \
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inline _T1 operator _Op(_T2 __lhs, _T3 __rhs) \
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{ \
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_T1 __retval; \
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__retval.__setval(__lhs.__getval() _Op __rhs.__getval()); \
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return __retval; \
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}
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#define _DEFINE_DECIMAL_BINARY_OP_BOTH(_Op, _T1, _T2, _T3) \
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inline _T1 operator _Op(_T2 __lhs, _T3 __rhs) \
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{ \
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_T1 __retval; \
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__retval.__setval(__lhs.__getval() _Op __rhs.__getval()); \
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return __retval; \
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}
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#define _DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, _T2) \
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inline _T1 operator _Op(_T1 __lhs, _T2 __rhs) \
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{ \
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_T1 __retval; \
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__retval.__setval(__lhs.__getval() _Op __rhs); \
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return __retval; \
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}
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#define _DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, _T2) \
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inline _T1 operator _Op(_T2 __lhs, _T1 __rhs) \
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{ \
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_T1 __retval; \
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__retval.__setval(__lhs _Op __rhs.__getval()); \
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return __retval; \
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}
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#define _DEFINE_DECIMAL_BINARY_OP_WITH_INT(_Op, _T1) \
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_DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, int); \
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_DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, unsigned int); \
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_DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, long); \
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_DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, unsigned long); \
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_DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, long long); \
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_DEFINE_DECIMAL_BINARY_OP_LHS(_Op, _T1, unsigned long long); \
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_DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, int); \
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_DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, unsigned int); \
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_DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, long); \
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_DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, unsigned long); \
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_DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, long long); \
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_DEFINE_DECIMAL_BINARY_OP_RHS(_Op, _T1, unsigned long long); \
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal32, decimal32, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(+, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal32, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(+, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal32, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal64, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(+, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal32, decimal32, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(-, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal32, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(-, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal32, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal64, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(-, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal32, decimal32, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(*, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal32, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(*, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal32, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal64, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(*, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal32, decimal32, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(/, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal32, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(/, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal32, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal64, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal32)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal64)
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_DEFINE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal128)
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_DEFINE_DECIMAL_BINARY_OP_WITH_INT(/, decimal128)
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#undef _DEFINE_DECIMAL_BINARY_OP_WITH_DEC
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#undef _DEFINE_DECIMAL_BINARY_OP_BOTH
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#undef _DEFINE_DECIMAL_BINARY_OP_LHS
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#undef _DEFINE_DECIMAL_BINARY_OP_RHS
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#undef _DEFINE_DECIMAL_BINARY_OP_WITH_INT
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// ISO/IEC TR 24733 3.2.9 Comparison operators.
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#define _DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _T1, _T2) \
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inline bool operator _Op(_T1 __lhs, _T2 __rhs) \
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{ return __lhs.__getval() _Op __rhs.__getval(); }
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#define _DEFINE_DECIMAL_COMPARISON_LHS(_Op, _T1, _T2) \
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inline bool operator _Op(_T1 __lhs, _T2 __rhs) \
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{ return __lhs.__getval() _Op __rhs; }
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#define _DEFINE_DECIMAL_COMPARISON_RHS(_Op, _T1, _T2) \
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inline bool operator _Op(_T1 __lhs, _T2 __rhs) \
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{ return __lhs _Op __rhs.__getval(); }
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#define _DEFINE_DECIMAL_COMPARISONS(_Op, _Tp) \
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_DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _Tp, decimal32) \
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_DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _Tp, decimal64) \
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_DEFINE_DECIMAL_COMPARISON_BOTH(_Op, _Tp, decimal128) \
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_DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, int) \
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_DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, unsigned int) \
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_DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, long) \
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_DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, unsigned long) \
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_DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, long long) \
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_DEFINE_DECIMAL_COMPARISON_LHS(_Op, _Tp, unsigned long long) \
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_DEFINE_DECIMAL_COMPARISON_RHS(_Op, int, _Tp) \
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_DEFINE_DECIMAL_COMPARISON_RHS(_Op, unsigned int, _Tp) \
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_DEFINE_DECIMAL_COMPARISON_RHS(_Op, long, _Tp) \
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_DEFINE_DECIMAL_COMPARISON_RHS(_Op, unsigned long, _Tp) \
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_DEFINE_DECIMAL_COMPARISON_RHS(_Op, long long, _Tp) \
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_DEFINE_DECIMAL_COMPARISON_RHS(_Op, unsigned long long, _Tp)
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_DEFINE_DECIMAL_COMPARISONS(==, decimal32)
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_DEFINE_DECIMAL_COMPARISONS(==, decimal64)
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_DEFINE_DECIMAL_COMPARISONS(==, decimal128)
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_DEFINE_DECIMAL_COMPARISONS(!=, decimal32)
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_DEFINE_DECIMAL_COMPARISONS(!=, decimal64)
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_DEFINE_DECIMAL_COMPARISONS(!=, decimal128)
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_DEFINE_DECIMAL_COMPARISONS(<, decimal32)
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_DEFINE_DECIMAL_COMPARISONS(<, decimal64)
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_DEFINE_DECIMAL_COMPARISONS(<, decimal128)
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_DEFINE_DECIMAL_COMPARISONS(<=, decimal32)
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_DEFINE_DECIMAL_COMPARISONS(<=, decimal64)
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_DEFINE_DECIMAL_COMPARISONS(<=, decimal128)
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_DEFINE_DECIMAL_COMPARISONS(>, decimal32)
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_DEFINE_DECIMAL_COMPARISONS(>, decimal64)
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_DEFINE_DECIMAL_COMPARISONS(>, decimal128)
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_DEFINE_DECIMAL_COMPARISONS(>=, decimal32)
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_DEFINE_DECIMAL_COMPARISONS(>=, decimal64)
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_DEFINE_DECIMAL_COMPARISONS(>=, decimal128)
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#undef _DEFINE_DECIMAL_COMPARISON_BOTH
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#undef _DEFINE_DECIMAL_COMPARISON_LHS
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#undef _DEFINE_DECIMAL_COMPARISON_RHS
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#undef _DEFINE_DECIMAL_COMPARISONS
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace decimal
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} // namespace std
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#endif /* _GLIBCXX_DECIMAL_IMPL */
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