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/decimal.h

decimal.h Property changes : Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: decimal =================================================================== --- decimal (nonexistent) +++ decimal (revision 826) @@ -0,0 +1,482 @@ +// -*- C++ -*- + +// Copyright (C) 2009 Free Software Foundation, Inc. +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/** @file include/decimal/decimal + * This is a Standard C++ Library header. + */ + +// ISO/IEC TR 24733 +// Written by Janis Johnson + +#ifndef _GLIBCXX_DECIMAL +#define _GLIBCXX_DECIMAL 1 + +#pragma GCC system_header + +#include + +#ifndef _GLIBCXX_USE_DECIMAL_FLOAT +#error This file requires compiler and library support for ISO/IEC TR 24733 \ +that is currently not available. +#endif + +namespace std +{ + /** + * @defgroup decimal Decimal Floating-Point Arithmetic + * @ingroup numerics + * + * Classes and functions for decimal floating-point arithmetic. + * @{ + */ + + /** @namespace std::decimal + * @brief ISO/IEC TR 24733 Decimal floating-point arithmetic. + */ +namespace decimal +{ + class decimal32; + class decimal64; + class decimal128; + + // 3.2.5 Initialization from coefficient and exponent. + static decimal32 make_decimal32(long long __coeff, int __exp); + static decimal32 make_decimal32(unsigned long long __coeff, int __exp); + static decimal64 make_decimal64(long long __coeff, int __exp); + static decimal64 make_decimal64(unsigned long long __coeff, int __exp); + static decimal128 make_decimal128(long long __coeff, int __exp); + static decimal128 make_decimal128(unsigned long long __coeff, int __exp); + + /// Non-conforming extension: Conversion to integral type. + long long decimal32_to_long_long(decimal32 __d); + long long decimal64_to_long_long(decimal64 __d); + long long decimal128_to_long_long(decimal128 __d); + long long decimal_to_long_long(decimal32 __d); + long long decimal_to_long_long(decimal64 __d); + long long decimal_to_long_long(decimal128 __d); + + // 3.2.6 Conversion to generic floating-point type. + float decimal32_to_float(decimal32 __d); + float decimal64_to_float(decimal64 __d); + float decimal128_to_float(decimal128 __d); + float decimal_to_float(decimal32 __d); + float decimal_to_float(decimal64 __d); + float decimal_to_float(decimal128 __d); + + double decimal32_to_double(decimal32 __d); + double decimal64_to_double(decimal64 __d); + double decimal128_to_double(decimal128 __d); + double decimal_to_double(decimal32 __d); + double decimal_to_double(decimal64 __d); + double decimal_to_double(decimal128 __d); + + long double decimal32_to_long_double(decimal32 __d); + long double decimal64_to_long_double(decimal64 __d); + long double decimal128_to_long_double(decimal128 __d); + long double decimal_to_long_double(decimal32 __d); + long double decimal_to_long_double(decimal64 __d); + long double decimal_to_long_double(decimal128 __d); + + // 3.2.7 Unary arithmetic operators. + decimal32 operator+(decimal32 __rhs); + decimal64 operator+(decimal64 __rhs); + decimal128 operator+(decimal128 __rhs); + decimal32 operator-(decimal32 __rhs); + decimal64 operator-(decimal64 __rhs); + decimal128 operator-(decimal128 __rhs); + + // 3.2.8 Binary arithmetic operators. +#define _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(_Op, _T1, _T2, _T3) \ + _T1 operator _Op(_T2 __lhs, _T3 __rhs); +#define _DECLARE_DECIMAL_BINARY_OP_WITH_INT(_Op, _Tp) \ + _Tp operator _Op(_Tp __lhs, int __rhs); \ + _Tp operator _Op(_Tp __lhs, unsigned int __rhs); \ + _Tp operator _Op(_Tp __lhs, long __rhs); \ + _Tp operator _Op(_Tp __lhs, unsigned long __rhs); \ + _Tp operator _Op(_Tp __lhs, long long __rhs); \ + _Tp operator _Op(_Tp __lhs, unsigned long long __rhs); \ + _Tp operator _Op(int __lhs, _Tp __rhs); \ + _Tp operator _Op(unsigned int __lhs, _Tp __rhs); \ + _Tp operator _Op(long __lhs, _Tp __rhs); \ + _Tp operator _Op(unsigned long __lhs, _Tp __rhs); \ + _Tp operator _Op(long long __lhs, _Tp __rhs); \ + _Tp operator _Op(unsigned long long __lhs, _Tp __rhs); + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal128) + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal128) + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal128) + + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal32, decimal32, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal32, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal32, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal64, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal32) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal64) + _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal128) + _DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal128) + +#undef _DECLARE_DECIMAL_BINARY_OP_WITH_DEC +#undef _DECLARE_DECIMAL_BINARY_OP_WITH_INT + + // 3.2.9 Comparison operators. +#define _DECLARE_DECIMAL_COMPARISON(_Op, _Tp) \ + bool operator _Op(_Tp __lhs, decimal32 __rhs); \ + bool operator _Op(_Tp __lhs, decimal64 __rhs); \ + bool operator _Op(_Tp __lhs, decimal128 __rhs); \ + bool operator _Op(_Tp __lhs, int __rhs); \ + bool operator _Op(_Tp __lhs, unsigned int __rhs); \ + bool operator _Op(_Tp __lhs, long __rhs); \ + bool operator _Op(_Tp __lhs, unsigned long __rhs); \ + bool operator _Op(_Tp __lhs, long long __rhs); \ + bool operator _Op(_Tp __lhs, unsigned long long __rhs); \ + bool operator _Op(int __lhs, _Tp __rhs); \ + bool operator _Op(unsigned int __lhs, _Tp __rhs); \ + bool operator _Op(long __lhs, _Tp __rhs); \ + bool operator _Op(unsigned long __lhs, _Tp __rhs); \ + bool operator _Op(long long __lhs, _Tp __rhs); \ + bool operator _Op(unsigned long long __lhs, _Tp __rhs); + + _DECLARE_DECIMAL_COMPARISON(==, decimal32) + _DECLARE_DECIMAL_COMPARISON(==, decimal64) + _DECLARE_DECIMAL_COMPARISON(==, decimal128) + + _DECLARE_DECIMAL_COMPARISON(!=, decimal32) + _DECLARE_DECIMAL_COMPARISON(!=, decimal64) + _DECLARE_DECIMAL_COMPARISON(!=, decimal128) + + _DECLARE_DECIMAL_COMPARISON(<, decimal32) + _DECLARE_DECIMAL_COMPARISON(<, decimal64) + _DECLARE_DECIMAL_COMPARISON(<, decimal128) + + _DECLARE_DECIMAL_COMPARISON(>=, decimal32) + _DECLARE_DECIMAL_COMPARISON(>=, decimal64) + _DECLARE_DECIMAL_COMPARISON(>=, decimal128) + + _DECLARE_DECIMAL_COMPARISON(>, decimal32) + _DECLARE_DECIMAL_COMPARISON(>, decimal64) + _DECLARE_DECIMAL_COMPARISON(>, decimal128) + + _DECLARE_DECIMAL_COMPARISON(>=, decimal32) + _DECLARE_DECIMAL_COMPARISON(>=, decimal64) + _DECLARE_DECIMAL_COMPARISON(>=, decimal128) + +#undef _DECLARE_DECIMAL_COMPARISON + + /// 3.2.2 Class decimal32. + class decimal32 + { + public: + typedef float __decfloat32 __attribute__((mode(SD))); + + // 3.2.2.2 Construct/copy/destroy. + decimal32() : __val(0.e-101DF) {} + + // 3.2.2.3 Conversion from floating-point type. + explicit decimal32(decimal64 __d64); + explicit decimal32(decimal128 __d128); + explicit decimal32(float __r) : __val(__r) {} + explicit decimal32(double __r) : __val(__r) {} + explicit decimal32(long double __r) : __val(__r) {} + + // 3.2.2.4 Conversion from integral type. + decimal32(int __z) : __val(__z) {} + decimal32(unsigned int __z) : __val(__z) {} + decimal32(long __z) : __val(__z) {} + decimal32(unsigned long __z) : __val(__z) {} + decimal32(long long __z) : __val(__z) {} + decimal32(unsigned long long __z) : __val(__z) {} + + /// Conforming extension: Conversion from scalar decimal type. + decimal32(__decfloat32 __z) : __val(__z) {} + + // 3.2.2.5 Conversion to integral type. (DISABLED) + //operator long long() const { return (long long)__val; } + + // 3.2.2.6 Increment and decrement operators. + decimal32& operator++() + { + __val += 1; + return *this; + } + + decimal32 operator++(int) + { + decimal32 __tmp = *this; + __val += 1; + return __tmp; + } + + decimal32& operator--() + { + __val -= 1; + return *this; + } + + decimal32 operator--(int) + { + decimal32 __tmp = *this; + __val -= 1; + return __tmp; + } + + // 3.2.2.7 Compound assignment. +#define _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(_Op) \ + decimal32& operator _Op(decimal32 __rhs); \ + decimal32& operator _Op(decimal64 __rhs); \ + decimal32& operator _Op(decimal128 __rhs); \ + decimal32& operator _Op(int __rhs); \ + decimal32& operator _Op(unsigned int __rhs); \ + decimal32& operator _Op(long __rhs); \ + decimal32& operator _Op(unsigned long __rhs); \ + decimal32& operator _Op(long long __rhs); \ + decimal32& operator _Op(unsigned long long __rhs); + + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(+=) + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(-=) + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(*=) + _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(/=) +#undef _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT + + private: + __decfloat32 __val; + + public: + __decfloat32 __getval(void) { return __val; } + void __setval(__decfloat32 __x) { __val = __x; } + }; + + /// 3.2.3 Class decimal64. + class decimal64 + { + public: + typedef float __decfloat64 __attribute__((mode(DD))); + + // 3.2.3.2 Construct/copy/destroy. + decimal64() : __val(0.e-398dd) {} + + // 3.2.3.3 Conversion from floating-point type. + decimal64(decimal32 d32); + explicit decimal64(decimal128 d128); + explicit decimal64(float __r) : __val(__r) {} + explicit decimal64(double __r) : __val(__r) {} + explicit decimal64(long double __r) : __val(__r) {} + + // 3.2.3.4 Conversion from integral type. + decimal64(int __z) : __val(__z) {} + decimal64(unsigned int __z) : __val(__z) {} + decimal64(long __z) : __val(__z) {} + decimal64(unsigned long __z) : __val(__z) {} + decimal64(long long __z) : __val(__z) {} + decimal64(unsigned long long __z) : __val(__z) {} + + /// Conforming extension: Conversion from scalar decimal type. + decimal64(__decfloat64 __z) : __val(__z) {} + + // 3.2.3.5 Conversion to integral type. (DISABLED) + //operator long long() const { return (long long)__val; } + + // 3.2.3.6 Increment and decrement operators. + decimal64& operator++() + { + __val += 1; + return *this; + } + + decimal64 operator++(int) + { + decimal64 __tmp = *this; + __val += 1; + return __tmp; + } + + decimal64& operator--() + { + __val -= 1; + return *this; + } + + decimal64 operator--(int) + { + decimal64 __tmp = *this; + __val -= 1; + return __tmp; + } + + // 3.2.3.7 Compound assignment. +#define _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(_Op) \ + decimal64& operator _Op(decimal32 __rhs); \ + decimal64& operator _Op(decimal64 __rhs); \ + decimal64& operator _Op(decimal128 __rhs); \ + decimal64& operator _Op(int __rhs); \ + decimal64& operator _Op(unsigned int __rhs); \ + decimal64& operator _Op(long __rhs); \ + decimal64& operator _Op(unsigned long __rhs); \ + decimal64& operator _Op(long long __rhs); \ + decimal64& operator _Op(unsigned long long __rhs); + + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(+=) + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(-=) + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(*=) + _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(/=) +#undef _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT + + private: + __decfloat64 __val; + + public: + __decfloat64 __getval(void) { return __val; } + void __setval(__decfloat64 __x) { __val = __x; } + }; + + /// 3.2.4 Class decimal128. + class decimal128 + { + public: + typedef float __decfloat128 __attribute__((mode(TD))); + + // 3.2.4.2 Construct/copy/destroy. + decimal128() : __val(0.e-6176DL) {} + + // 3.2.4.3 Conversion from floating-point type. + decimal128(decimal32 d32); + decimal128(decimal64 d64); + explicit decimal128(float __r) : __val(__r) {} + explicit decimal128(double __r) : __val(__r) {} + explicit decimal128(long double __r) : __val(__r) {} + + + // 3.2.4.4 Conversion from integral type. + decimal128(int __z) : __val(__z) {} + decimal128(unsigned int __z) : __val(__z) {} + decimal128(long __z) : __val(__z) {} + decimal128(unsigned long __z) : __val(__z) {} + decimal128(long long __z) : __val(__z) {} + decimal128(unsigned long long __z) : __val(__z) {} + + /// Conforming extension: Conversion from scalar decimal type. + decimal128(__decfloat128 __z) : __val(__z) {} + + // 3.2.4.5 Conversion to integral type. (DISABLED) + //operator long long() const { return (long long)__val; } + + // 3.2.4.6 Increment and decrement operators. + decimal128& operator++() + { + __val += 1; + return *this; + } + + decimal128 operator++(int) + { + decimal128 __tmp = *this; + __val += 1; + return __tmp; + } + + decimal128& operator--() + { + __val -= 1; + return *this; + } + + decimal128 operator--(int) + { + decimal128 __tmp = *this; + __val -= 1; + return __tmp; + } + + // 3.2.4.7 Compound assignment. +#define _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(_Op) \ + decimal128& operator _Op(decimal32 __rhs); \ + decimal128& operator _Op(decimal64 __rhs); \ + decimal128& operator _Op(decimal128 __rhs); \ + decimal128& operator _Op(int __rhs); \ + 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 + + private: + __decfloat128 __val; + + public: + __decfloat128 __getval(void) { return __val; } + void __setval(__decfloat128 __x) { __val = __x; } + }; + +#define _GLIBCXX_USE_DECIMAL_ 1 + +} // namespace decimal + // @} group decimal +} // namespace std + +#include + +#endif /* _GLIBCXX_DECIMAL */