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// <decimal> -*- C++ -*- // Copyright (C) 2009-2022 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 // <http://www.gnu.org/licenses/>. /** @file decimal/decimal * This is a Standard C++ Library header. */ // ISO/IEC TR 24733 // Written by Janis Johnson <janis187@us.ibm.com> #ifndef _GLIBCXX_DECIMAL #define _GLIBCXX_DECIMAL 1 #pragma GCC system_header #include <bits/c++config.h> #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 _GLIBCXX_VISIBILITY(default) { _GLIBCXX_BEGIN_NAMESPACE_VERSION /** * @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) {} #if __cplusplus >= 201103L // 3.2.2.5 Conversion to integral type. // Note: explicit per n3407. explicit operator long long() const { return (long long)__val; } #endif // 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) {} #if __cplusplus >= 201103L // 3.2.3.5 Conversion to integral type. // Note: explicit per n3407. explicit operator long long() const { return (long long)__val; } #endif // 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) {} #if __cplusplus >= 201103L // 3.2.4.5 Conversion to integral type. // Note: explicit per n3407. explicit operator long long() const { return (long long)__val; } #endif // 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 _GLIBCXX_END_NAMESPACE_VERSION } // namespace std #include <decimal/decimal.h> #endif /* _GLIBCXX_DECIMAL */