| 6554 |
serge |
1 |
// -*- C++ -*- |
|
|
2 |
|
|
|
3 |
// Copyright (C) 2009-2015 Free Software Foundation, Inc. |
|
|
4 |
// This file is part of the GNU ISO C++ Library. This library is free |
|
|
5 |
// software; you can redistribute it and/or modify it under the |
|
|
6 |
// terms of the GNU General Public License as published by the |
|
|
7 |
// Free Software Foundation; either version 3, or (at your option) |
|
|
8 |
// any later version. |
|
|
9 |
|
|
|
10 |
// This library is distributed in the hope that it will be useful, |
|
|
11 |
// but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
|
12 |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
|
13 |
// GNU General Public License for more details. |
|
|
14 |
|
|
|
15 |
// Under Section 7 of GPL version 3, you are granted additional |
|
|
16 |
// permissions described in the GCC Runtime Library Exception, version |
|
|
17 |
// 3.1, as published by the Free Software Foundation. |
|
|
18 |
|
|
|
19 |
// You should have received a copy of the GNU General Public License and |
|
|
20 |
// a copy of the GCC Runtime Library Exception along with this program; |
|
|
21 |
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
|
|
22 |
// . |
|
|
23 |
|
|
|
24 |
/** @file decimal/decimal |
|
|
25 |
* This is a Standard C++ Library header. |
|
|
26 |
*/ |
|
|
27 |
|
|
|
28 |
// ISO/IEC TR 24733 |
|
|
29 |
// Written by Janis Johnson |
|
|
30 |
|
|
|
31 |
#ifndef _GLIBCXX_DECIMAL |
|
|
32 |
#define _GLIBCXX_DECIMAL 1 |
|
|
33 |
|
|
|
34 |
#pragma GCC system_header |
|
|
35 |
|
|
|
36 |
#include |
|
|
37 |
|
|
|
38 |
#ifndef _GLIBCXX_USE_DECIMAL_FLOAT |
|
|
39 |
#error This file requires compiler and library support for ISO/IEC TR 24733 \ |
|
|
40 |
that is currently not available. |
|
|
41 |
#endif |
|
|
42 |
|
|
|
43 |
namespace std _GLIBCXX_VISIBILITY(default) |
|
|
44 |
{ |
|
|
45 |
/** |
|
|
46 |
* @defgroup decimal Decimal Floating-Point Arithmetic |
|
|
47 |
* @ingroup numerics |
|
|
48 |
* |
|
|
49 |
* Classes and functions for decimal floating-point arithmetic. |
|
|
50 |
* @{ |
|
|
51 |
*/ |
|
|
52 |
|
|
|
53 |
/** @namespace std::decimal |
|
|
54 |
* @brief ISO/IEC TR 24733 Decimal floating-point arithmetic. |
|
|
55 |
*/ |
|
|
56 |
namespace decimal |
|
|
57 |
{ |
|
|
58 |
_GLIBCXX_BEGIN_NAMESPACE_VERSION |
|
|
59 |
|
|
|
60 |
class decimal32; |
|
|
61 |
class decimal64; |
|
|
62 |
class decimal128; |
|
|
63 |
|
|
|
64 |
// 3.2.5 Initialization from coefficient and exponent. |
|
|
65 |
static decimal32 make_decimal32(long long __coeff, int __exp); |
|
|
66 |
static decimal32 make_decimal32(unsigned long long __coeff, int __exp); |
|
|
67 |
static decimal64 make_decimal64(long long __coeff, int __exp); |
|
|
68 |
static decimal64 make_decimal64(unsigned long long __coeff, int __exp); |
|
|
69 |
static decimal128 make_decimal128(long long __coeff, int __exp); |
|
|
70 |
static decimal128 make_decimal128(unsigned long long __coeff, int __exp); |
|
|
71 |
|
|
|
72 |
/// Non-conforming extension: Conversion to integral type. |
|
|
73 |
long long decimal32_to_long_long(decimal32 __d); |
|
|
74 |
long long decimal64_to_long_long(decimal64 __d); |
|
|
75 |
long long decimal128_to_long_long(decimal128 __d); |
|
|
76 |
long long decimal_to_long_long(decimal32 __d); |
|
|
77 |
long long decimal_to_long_long(decimal64 __d); |
|
|
78 |
long long decimal_to_long_long(decimal128 __d); |
|
|
79 |
|
|
|
80 |
// 3.2.6 Conversion to generic floating-point type. |
|
|
81 |
float decimal32_to_float(decimal32 __d); |
|
|
82 |
float decimal64_to_float(decimal64 __d); |
|
|
83 |
float decimal128_to_float(decimal128 __d); |
|
|
84 |
float decimal_to_float(decimal32 __d); |
|
|
85 |
float decimal_to_float(decimal64 __d); |
|
|
86 |
float decimal_to_float(decimal128 __d); |
|
|
87 |
|
|
|
88 |
double decimal32_to_double(decimal32 __d); |
|
|
89 |
double decimal64_to_double(decimal64 __d); |
|
|
90 |
double decimal128_to_double(decimal128 __d); |
|
|
91 |
double decimal_to_double(decimal32 __d); |
|
|
92 |
double decimal_to_double(decimal64 __d); |
|
|
93 |
double decimal_to_double(decimal128 __d); |
|
|
94 |
|
|
|
95 |
long double decimal32_to_long_double(decimal32 __d); |
|
|
96 |
long double decimal64_to_long_double(decimal64 __d); |
|
|
97 |
long double decimal128_to_long_double(decimal128 __d); |
|
|
98 |
long double decimal_to_long_double(decimal32 __d); |
|
|
99 |
long double decimal_to_long_double(decimal64 __d); |
|
|
100 |
long double decimal_to_long_double(decimal128 __d); |
|
|
101 |
|
|
|
102 |
// 3.2.7 Unary arithmetic operators. |
|
|
103 |
decimal32 operator+(decimal32 __rhs); |
|
|
104 |
decimal64 operator+(decimal64 __rhs); |
|
|
105 |
decimal128 operator+(decimal128 __rhs); |
|
|
106 |
decimal32 operator-(decimal32 __rhs); |
|
|
107 |
decimal64 operator-(decimal64 __rhs); |
|
|
108 |
decimal128 operator-(decimal128 __rhs); |
|
|
109 |
|
|
|
110 |
// 3.2.8 Binary arithmetic operators. |
|
|
111 |
#define _DECLARE_DECIMAL_BINARY_OP_WITH_DEC(_Op, _T1, _T2, _T3) \ |
|
|
112 |
_T1 operator _Op(_T2 __lhs, _T3 __rhs); |
|
|
113 |
#define _DECLARE_DECIMAL_BINARY_OP_WITH_INT(_Op, _Tp) \ |
|
|
114 |
_Tp operator _Op(_Tp __lhs, int __rhs); \ |
|
|
115 |
_Tp operator _Op(_Tp __lhs, unsigned int __rhs); \ |
|
|
116 |
_Tp operator _Op(_Tp __lhs, long __rhs); \ |
|
|
117 |
_Tp operator _Op(_Tp __lhs, unsigned long __rhs); \ |
|
|
118 |
_Tp operator _Op(_Tp __lhs, long long __rhs); \ |
|
|
119 |
_Tp operator _Op(_Tp __lhs, unsigned long long __rhs); \ |
|
|
120 |
_Tp operator _Op(int __lhs, _Tp __rhs); \ |
|
|
121 |
_Tp operator _Op(unsigned int __lhs, _Tp __rhs); \ |
|
|
122 |
_Tp operator _Op(long __lhs, _Tp __rhs); \ |
|
|
123 |
_Tp operator _Op(unsigned long __lhs, _Tp __rhs); \ |
|
|
124 |
_Tp operator _Op(long long __lhs, _Tp __rhs); \ |
|
|
125 |
_Tp operator _Op(unsigned long long __lhs, _Tp __rhs); |
|
|
126 |
|
|
|
127 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal32, decimal32, decimal32) |
|
|
128 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal32) |
|
|
129 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal32, decimal64) |
|
|
130 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal32) |
|
|
131 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal64, decimal64, decimal64) |
|
|
132 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal64) |
|
|
133 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal32, decimal128) |
|
|
134 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal64, decimal128) |
|
|
135 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal32) |
|
|
136 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal64) |
|
|
137 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(+, decimal128, decimal128, decimal128) |
|
|
138 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(+, decimal128) |
|
|
139 |
|
|
|
140 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal32, decimal32, decimal32) |
|
|
141 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal32) |
|
|
142 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal32, decimal64) |
|
|
143 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal32) |
|
|
144 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal64, decimal64, decimal64) |
|
|
145 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal64) |
|
|
146 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal32, decimal128) |
|
|
147 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal64, decimal128) |
|
|
148 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal32) |
|
|
149 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal64) |
|
|
150 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(-, decimal128, decimal128, decimal128) |
|
|
151 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(-, decimal128) |
|
|
152 |
|
|
|
153 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal32, decimal32, decimal32) |
|
|
154 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal32) |
|
|
155 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal32, decimal64) |
|
|
156 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal32) |
|
|
157 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal64, decimal64, decimal64) |
|
|
158 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal64) |
|
|
159 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal32, decimal128) |
|
|
160 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal64, decimal128) |
|
|
161 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal32) |
|
|
162 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal64) |
|
|
163 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(*, decimal128, decimal128, decimal128) |
|
|
164 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(*, decimal128) |
|
|
165 |
|
|
|
166 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal32, decimal32, decimal32) |
|
|
167 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal32) |
|
|
168 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal32, decimal64) |
|
|
169 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal32) |
|
|
170 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal64, decimal64, decimal64) |
|
|
171 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal64) |
|
|
172 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal32, decimal128) |
|
|
173 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal64, decimal128) |
|
|
174 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal32) |
|
|
175 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal64) |
|
|
176 |
_DECLARE_DECIMAL_BINARY_OP_WITH_DEC(/, decimal128, decimal128, decimal128) |
|
|
177 |
_DECLARE_DECIMAL_BINARY_OP_WITH_INT(/, decimal128) |
|
|
178 |
|
|
|
179 |
#undef _DECLARE_DECIMAL_BINARY_OP_WITH_DEC |
|
|
180 |
#undef _DECLARE_DECIMAL_BINARY_OP_WITH_INT |
|
|
181 |
|
|
|
182 |
// 3.2.9 Comparison operators. |
|
|
183 |
#define _DECLARE_DECIMAL_COMPARISON(_Op, _Tp) \ |
|
|
184 |
bool operator _Op(_Tp __lhs, decimal32 __rhs); \ |
|
|
185 |
bool operator _Op(_Tp __lhs, decimal64 __rhs); \ |
|
|
186 |
bool operator _Op(_Tp __lhs, decimal128 __rhs); \ |
|
|
187 |
bool operator _Op(_Tp __lhs, int __rhs); \ |
|
|
188 |
bool operator _Op(_Tp __lhs, unsigned int __rhs); \ |
|
|
189 |
bool operator _Op(_Tp __lhs, long __rhs); \ |
|
|
190 |
bool operator _Op(_Tp __lhs, unsigned long __rhs); \ |
|
|
191 |
bool operator _Op(_Tp __lhs, long long __rhs); \ |
|
|
192 |
bool operator _Op(_Tp __lhs, unsigned long long __rhs); \ |
|
|
193 |
bool operator _Op(int __lhs, _Tp __rhs); \ |
|
|
194 |
bool operator _Op(unsigned int __lhs, _Tp __rhs); \ |
|
|
195 |
bool operator _Op(long __lhs, _Tp __rhs); \ |
|
|
196 |
bool operator _Op(unsigned long __lhs, _Tp __rhs); \ |
|
|
197 |
bool operator _Op(long long __lhs, _Tp __rhs); \ |
|
|
198 |
bool operator _Op(unsigned long long __lhs, _Tp __rhs); |
|
|
199 |
|
|
|
200 |
_DECLARE_DECIMAL_COMPARISON(==, decimal32) |
|
|
201 |
_DECLARE_DECIMAL_COMPARISON(==, decimal64) |
|
|
202 |
_DECLARE_DECIMAL_COMPARISON(==, decimal128) |
|
|
203 |
|
|
|
204 |
_DECLARE_DECIMAL_COMPARISON(!=, decimal32) |
|
|
205 |
_DECLARE_DECIMAL_COMPARISON(!=, decimal64) |
|
|
206 |
_DECLARE_DECIMAL_COMPARISON(!=, decimal128) |
|
|
207 |
|
|
|
208 |
_DECLARE_DECIMAL_COMPARISON(<, decimal32) |
|
|
209 |
_DECLARE_DECIMAL_COMPARISON(<, decimal64) |
|
|
210 |
_DECLARE_DECIMAL_COMPARISON(<, decimal128) |
|
|
211 |
|
|
|
212 |
_DECLARE_DECIMAL_COMPARISON(>=, decimal32) |
|
|
213 |
_DECLARE_DECIMAL_COMPARISON(>=, decimal64) |
|
|
214 |
_DECLARE_DECIMAL_COMPARISON(>=, decimal128) |
|
|
215 |
|
|
|
216 |
_DECLARE_DECIMAL_COMPARISON(>, decimal32) |
|
|
217 |
_DECLARE_DECIMAL_COMPARISON(>, decimal64) |
|
|
218 |
_DECLARE_DECIMAL_COMPARISON(>, decimal128) |
|
|
219 |
|
|
|
220 |
_DECLARE_DECIMAL_COMPARISON(>=, decimal32) |
|
|
221 |
_DECLARE_DECIMAL_COMPARISON(>=, decimal64) |
|
|
222 |
_DECLARE_DECIMAL_COMPARISON(>=, decimal128) |
|
|
223 |
|
|
|
224 |
#undef _DECLARE_DECIMAL_COMPARISON |
|
|
225 |
|
|
|
226 |
/// 3.2.2 Class decimal32. |
|
|
227 |
class decimal32 |
|
|
228 |
{ |
|
|
229 |
public: |
|
|
230 |
typedef float __decfloat32 __attribute__((mode(SD))); |
|
|
231 |
|
|
|
232 |
// 3.2.2.2 Construct/copy/destroy. |
|
|
233 |
decimal32() : __val(0.e-101DF) {} |
|
|
234 |
|
|
|
235 |
// 3.2.2.3 Conversion from floating-point type. |
|
|
236 |
explicit decimal32(decimal64 __d64); |
|
|
237 |
explicit decimal32(decimal128 __d128); |
|
|
238 |
explicit decimal32(float __r) : __val(__r) {} |
|
|
239 |
explicit decimal32(double __r) : __val(__r) {} |
|
|
240 |
explicit decimal32(long double __r) : __val(__r) {} |
|
|
241 |
|
|
|
242 |
// 3.2.2.4 Conversion from integral type. |
|
|
243 |
decimal32(int __z) : __val(__z) {} |
|
|
244 |
decimal32(unsigned int __z) : __val(__z) {} |
|
|
245 |
decimal32(long __z) : __val(__z) {} |
|
|
246 |
decimal32(unsigned long __z) : __val(__z) {} |
|
|
247 |
decimal32(long long __z) : __val(__z) {} |
|
|
248 |
decimal32(unsigned long long __z) : __val(__z) {} |
|
|
249 |
|
|
|
250 |
/// Conforming extension: Conversion from scalar decimal type. |
|
|
251 |
decimal32(__decfloat32 __z) : __val(__z) {} |
|
|
252 |
|
|
|
253 |
#if __cplusplus >= 201103L |
|
|
254 |
// 3.2.2.5 Conversion to integral type. |
|
|
255 |
// Note: explicit per n3407. |
|
|
256 |
explicit operator long long() const { return (long long)__val; } |
|
|
257 |
#endif |
|
|
258 |
|
|
|
259 |
// 3.2.2.6 Increment and decrement operators. |
|
|
260 |
decimal32& operator++() |
|
|
261 |
{ |
|
|
262 |
__val += 1; |
|
|
263 |
return *this; |
|
|
264 |
} |
|
|
265 |
|
|
|
266 |
decimal32 operator++(int) |
|
|
267 |
{ |
|
|
268 |
decimal32 __tmp = *this; |
|
|
269 |
__val += 1; |
|
|
270 |
return __tmp; |
|
|
271 |
} |
|
|
272 |
|
|
|
273 |
decimal32& operator--() |
|
|
274 |
{ |
|
|
275 |
__val -= 1; |
|
|
276 |
return *this; |
|
|
277 |
} |
|
|
278 |
|
|
|
279 |
decimal32 operator--(int) |
|
|
280 |
{ |
|
|
281 |
decimal32 __tmp = *this; |
|
|
282 |
__val -= 1; |
|
|
283 |
return __tmp; |
|
|
284 |
} |
|
|
285 |
|
|
|
286 |
// 3.2.2.7 Compound assignment. |
|
|
287 |
#define _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(_Op) \ |
|
|
288 |
decimal32& operator _Op(decimal32 __rhs); \ |
|
|
289 |
decimal32& operator _Op(decimal64 __rhs); \ |
|
|
290 |
decimal32& operator _Op(decimal128 __rhs); \ |
|
|
291 |
decimal32& operator _Op(int __rhs); \ |
|
|
292 |
decimal32& operator _Op(unsigned int __rhs); \ |
|
|
293 |
decimal32& operator _Op(long __rhs); \ |
|
|
294 |
decimal32& operator _Op(unsigned long __rhs); \ |
|
|
295 |
decimal32& operator _Op(long long __rhs); \ |
|
|
296 |
decimal32& operator _Op(unsigned long long __rhs); |
|
|
297 |
|
|
|
298 |
_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(+=) |
|
|
299 |
_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(-=) |
|
|
300 |
_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(*=) |
|
|
301 |
_DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT(/=) |
|
|
302 |
#undef _DECLARE_DECIMAL32_COMPOUND_ASSIGNMENT |
|
|
303 |
|
|
|
304 |
private: |
|
|
305 |
__decfloat32 __val; |
|
|
306 |
|
|
|
307 |
public: |
|
|
308 |
__decfloat32 __getval(void) { return __val; } |
|
|
309 |
void __setval(__decfloat32 __x) { __val = __x; } |
|
|
310 |
}; |
|
|
311 |
|
|
|
312 |
/// 3.2.3 Class decimal64. |
|
|
313 |
class decimal64 |
|
|
314 |
{ |
|
|
315 |
public: |
|
|
316 |
typedef float __decfloat64 __attribute__((mode(DD))); |
|
|
317 |
|
|
|
318 |
// 3.2.3.2 Construct/copy/destroy. |
|
|
319 |
decimal64() : __val(0.e-398dd) {} |
|
|
320 |
|
|
|
321 |
// 3.2.3.3 Conversion from floating-point type. |
|
|
322 |
decimal64(decimal32 d32); |
|
|
323 |
explicit decimal64(decimal128 d128); |
|
|
324 |
explicit decimal64(float __r) : __val(__r) {} |
|
|
325 |
explicit decimal64(double __r) : __val(__r) {} |
|
|
326 |
explicit decimal64(long double __r) : __val(__r) {} |
|
|
327 |
|
|
|
328 |
// 3.2.3.4 Conversion from integral type. |
|
|
329 |
decimal64(int __z) : __val(__z) {} |
|
|
330 |
decimal64(unsigned int __z) : __val(__z) {} |
|
|
331 |
decimal64(long __z) : __val(__z) {} |
|
|
332 |
decimal64(unsigned long __z) : __val(__z) {} |
|
|
333 |
decimal64(long long __z) : __val(__z) {} |
|
|
334 |
decimal64(unsigned long long __z) : __val(__z) {} |
|
|
335 |
|
|
|
336 |
/// Conforming extension: Conversion from scalar decimal type. |
|
|
337 |
decimal64(__decfloat64 __z) : __val(__z) {} |
|
|
338 |
|
|
|
339 |
#if __cplusplus >= 201103L |
|
|
340 |
// 3.2.3.5 Conversion to integral type. |
|
|
341 |
// Note: explicit per n3407. |
|
|
342 |
explicit operator long long() const { return (long long)__val; } |
|
|
343 |
#endif |
|
|
344 |
|
|
|
345 |
// 3.2.3.6 Increment and decrement operators. |
|
|
346 |
decimal64& operator++() |
|
|
347 |
{ |
|
|
348 |
__val += 1; |
|
|
349 |
return *this; |
|
|
350 |
} |
|
|
351 |
|
|
|
352 |
decimal64 operator++(int) |
|
|
353 |
{ |
|
|
354 |
decimal64 __tmp = *this; |
|
|
355 |
__val += 1; |
|
|
356 |
return __tmp; |
|
|
357 |
} |
|
|
358 |
|
|
|
359 |
decimal64& operator--() |
|
|
360 |
{ |
|
|
361 |
__val -= 1; |
|
|
362 |
return *this; |
|
|
363 |
} |
|
|
364 |
|
|
|
365 |
decimal64 operator--(int) |
|
|
366 |
{ |
|
|
367 |
decimal64 __tmp = *this; |
|
|
368 |
__val -= 1; |
|
|
369 |
return __tmp; |
|
|
370 |
} |
|
|
371 |
|
|
|
372 |
// 3.2.3.7 Compound assignment. |
|
|
373 |
#define _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(_Op) \ |
|
|
374 |
decimal64& operator _Op(decimal32 __rhs); \ |
|
|
375 |
decimal64& operator _Op(decimal64 __rhs); \ |
|
|
376 |
decimal64& operator _Op(decimal128 __rhs); \ |
|
|
377 |
decimal64& operator _Op(int __rhs); \ |
|
|
378 |
decimal64& operator _Op(unsigned int __rhs); \ |
|
|
379 |
decimal64& operator _Op(long __rhs); \ |
|
|
380 |
decimal64& operator _Op(unsigned long __rhs); \ |
|
|
381 |
decimal64& operator _Op(long long __rhs); \ |
|
|
382 |
decimal64& operator _Op(unsigned long long __rhs); |
|
|
383 |
|
|
|
384 |
_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(+=) |
|
|
385 |
_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(-=) |
|
|
386 |
_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(*=) |
|
|
387 |
_DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT(/=) |
|
|
388 |
#undef _DECLARE_DECIMAL64_COMPOUND_ASSIGNMENT |
|
|
389 |
|
|
|
390 |
private: |
|
|
391 |
__decfloat64 __val; |
|
|
392 |
|
|
|
393 |
public: |
|
|
394 |
__decfloat64 __getval(void) { return __val; } |
|
|
395 |
void __setval(__decfloat64 __x) { __val = __x; } |
|
|
396 |
}; |
|
|
397 |
|
|
|
398 |
/// 3.2.4 Class decimal128. |
|
|
399 |
class decimal128 |
|
|
400 |
{ |
|
|
401 |
public: |
|
|
402 |
typedef float __decfloat128 __attribute__((mode(TD))); |
|
|
403 |
|
|
|
404 |
// 3.2.4.2 Construct/copy/destroy. |
|
|
405 |
decimal128() : __val(0.e-6176DL) {} |
|
|
406 |
|
|
|
407 |
// 3.2.4.3 Conversion from floating-point type. |
|
|
408 |
decimal128(decimal32 d32); |
|
|
409 |
decimal128(decimal64 d64); |
|
|
410 |
explicit decimal128(float __r) : __val(__r) {} |
|
|
411 |
explicit decimal128(double __r) : __val(__r) {} |
|
|
412 |
explicit decimal128(long double __r) : __val(__r) {} |
|
|
413 |
|
|
|
414 |
|
|
|
415 |
// 3.2.4.4 Conversion from integral type. |
|
|
416 |
decimal128(int __z) : __val(__z) {} |
|
|
417 |
decimal128(unsigned int __z) : __val(__z) {} |
|
|
418 |
decimal128(long __z) : __val(__z) {} |
|
|
419 |
decimal128(unsigned long __z) : __val(__z) {} |
|
|
420 |
decimal128(long long __z) : __val(__z) {} |
|
|
421 |
decimal128(unsigned long long __z) : __val(__z) {} |
|
|
422 |
|
|
|
423 |
/// Conforming extension: Conversion from scalar decimal type. |
|
|
424 |
decimal128(__decfloat128 __z) : __val(__z) {} |
|
|
425 |
|
|
|
426 |
#if __cplusplus >= 201103L |
|
|
427 |
// 3.2.4.5 Conversion to integral type. |
|
|
428 |
// Note: explicit per n3407. |
|
|
429 |
explicit operator long long() const { return (long long)__val; } |
|
|
430 |
#endif |
|
|
431 |
|
|
|
432 |
// 3.2.4.6 Increment and decrement operators. |
|
|
433 |
decimal128& operator++() |
|
|
434 |
{ |
|
|
435 |
__val += 1; |
|
|
436 |
return *this; |
|
|
437 |
} |
|
|
438 |
|
|
|
439 |
decimal128 operator++(int) |
|
|
440 |
{ |
|
|
441 |
decimal128 __tmp = *this; |
|
|
442 |
__val += 1; |
|
|
443 |
return __tmp; |
|
|
444 |
} |
|
|
445 |
|
|
|
446 |
decimal128& operator--() |
|
|
447 |
{ |
|
|
448 |
__val -= 1; |
|
|
449 |
return *this; |
|
|
450 |
} |
|
|
451 |
|
|
|
452 |
decimal128 operator--(int) |
|
|
453 |
{ |
|
|
454 |
decimal128 __tmp = *this; |
|
|
455 |
__val -= 1; |
|
|
456 |
return __tmp; |
|
|
457 |
} |
|
|
458 |
|
|
|
459 |
// 3.2.4.7 Compound assignment. |
|
|
460 |
#define _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(_Op) \ |
|
|
461 |
decimal128& operator _Op(decimal32 __rhs); \ |
|
|
462 |
decimal128& operator _Op(decimal64 __rhs); \ |
|
|
463 |
decimal128& operator _Op(decimal128 __rhs); \ |
|
|
464 |
decimal128& operator _Op(int __rhs); \ |
|
|
465 |
decimal128& operator _Op(unsigned int __rhs); \ |
|
|
466 |
decimal128& operator _Op(long __rhs); \ |
|
|
467 |
decimal128& operator _Op(unsigned long __rhs); \ |
|
|
468 |
decimal128& operator _Op(long long __rhs); \ |
|
|
469 |
decimal128& operator _Op(unsigned long long __rhs); |
|
|
470 |
|
|
|
471 |
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(+=) |
|
|
472 |
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(-=) |
|
|
473 |
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(*=) |
|
|
474 |
_DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT(/=) |
|
|
475 |
#undef _DECLARE_DECIMAL128_COMPOUND_ASSIGNMENT |
|
|
476 |
|
|
|
477 |
private: |
|
|
478 |
__decfloat128 __val; |
|
|
479 |
|
|
|
480 |
public: |
|
|
481 |
__decfloat128 __getval(void) { return __val; } |
|
|
482 |
void __setval(__decfloat128 __x) { __val = __x; } |
|
|
483 |
}; |
|
|
484 |
|
|
|
485 |
#define _GLIBCXX_USE_DECIMAL_ 1 |
|
|
486 |
|
|
|
487 |
_GLIBCXX_END_NAMESPACE_VERSION |
|
|
488 |
} // namespace decimal |
|
|
489 |
// @} group decimal |
|
|
490 |
} // namespace std |
|
|
491 |
|
|
|
492 |
#include |
|
|
493 |
|
|
|
494 |
#endif /* _GLIBCXX_DECIMAL */ |