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1 // Stub definitions for long double math. | |
2 | |
3 // Copyright (C) 2001, 2002, 2003, 2009 Free Software Foundation, Inc. | |
4 // | |
5 // This file is part of the GNU ISO C++ Library. This library is free | |
6 // software; you can redistribute it and/or modify it under the | |
7 // terms of the GNU General Public License as published by the | |
8 // Free Software Foundation; either version 3, or (at your option) | |
9 // any later version. | |
10 | |
11 // This library is distributed in the hope that it will be useful, | |
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 // GNU General Public License for more details. | |
15 | |
16 // Under Section 7 of GPL version 3, you are granted additional | |
17 // permissions described in the GCC Runtime Library Exception, version | |
18 // 3.1, as published by the Free Software Foundation. | |
19 | |
20 // You should have received a copy of the GNU General Public License and | |
21 // a copy of the GCC Runtime Library Exception along with this program; | |
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 // <http://www.gnu.org/licenses/>. | |
24 | |
25 #include <cmath> | |
26 | |
27 // For targets which do not have support for long double versions, | |
28 // we use the following crude approximations. We keep saying that we'll do | |
29 // better later, but never do. | |
30 | |
31 extern "C" | |
32 { | |
33 #ifndef _GLIBCXX_HAVE_FABSL | |
34 long double | |
35 fabsl(long double x) | |
36 { | |
37 return fabs((double) x); | |
38 } | |
39 #endif | |
40 | |
41 #ifndef _GLIBCXX_HAVE_ACOSL | |
42 long double | |
43 acosl(long double x) | |
44 { | |
45 return acos((double) x); | |
46 } | |
47 #endif | |
48 | |
49 #ifndef _GLIBCXX_HAVE_ASINL | |
50 long double | |
51 asinl(long double x) | |
52 { | |
53 return asin((double) x); | |
54 } | |
55 #endif | |
56 | |
57 #ifndef _GLIBCXX_HAVE_ATANL | |
58 long double | |
59 atanl(long double x) | |
60 { | |
61 return atan ((double) x); | |
62 } | |
63 #endif | |
64 | |
65 #ifndef _GLIBCXX_HAVE_ATAN2L | |
66 long double | |
67 atan2l(long double x, long double y) | |
68 { | |
69 return atan2((double) x, (double) y); | |
70 } | |
71 #endif | |
72 | |
73 #ifndef _GLIBCXX_HAVE_CEILL | |
74 long double | |
75 ceill(long double x) | |
76 { | |
77 return ceil((double) x); | |
78 } | |
79 #endif | |
80 | |
81 #ifndef _GLIBCXX_HAVE_COSL | |
82 long double | |
83 cosl(long double x) | |
84 { | |
85 return cos((double) x); | |
86 } | |
87 #endif | |
88 | |
89 #ifndef _GLIBCXX_HAVE_COSHL | |
90 long double | |
91 coshl(long double x) | |
92 { | |
93 return cosh((double) x); | |
94 } | |
95 #endif | |
96 | |
97 #ifndef _GLIBCXX_HAVE_EXPL | |
98 long double | |
99 expl(long double x) | |
100 { | |
101 return exp((double) x); | |
102 } | |
103 #endif | |
104 | |
105 #ifndef _GLIBCXX_HAVE_FLOORL | |
106 long double | |
107 floorl(long double x) | |
108 { | |
109 return floor((double) x); | |
110 } | |
111 #endif | |
112 | |
113 #ifndef _GLIBCXX_HAVE_FMODL | |
114 long double | |
115 fmodl(long double x, long double y) | |
116 { | |
117 return fmod((double) x, (double) y); | |
118 } | |
119 #endif | |
120 | |
121 #ifndef _GLIBCXX_HAVE_FREXPL | |
122 long double | |
123 frexpl(long double x, int *exp) | |
124 { | |
125 return frexp((double) x, exp); | |
126 } | |
127 #endif | |
128 | |
129 #ifndef _GLIBCXX_HAVE_SQRTL | |
130 long double | |
131 sqrtl(long double x) | |
132 { | |
133 return sqrt((double) x); | |
134 } | |
135 #endif | |
136 | |
137 #ifndef _GLIBCXX_HAVE_HYPOTL | |
138 long double | |
139 hypotl(long double x, long double y) | |
140 { | |
141 long double s = fabsl(x) + fabsl(y); | |
142 if (s == 0.0L) | |
143 return s; | |
144 x /= s; y /= s; | |
145 return s * sqrtl(x * x + y * y); | |
146 } | |
147 #endif | |
148 | |
149 #ifndef _GLIBCXX_HAVE_LDEXPL | |
150 long double | |
151 ldexpl(long double x, int exp) | |
152 { | |
153 return ldexp((double) x, exp); | |
154 } | |
155 #endif | |
156 | |
157 #ifndef _GLIBCXX_HAVE_LOGL | |
158 long double | |
159 logl(long double x) | |
160 { | |
161 return log((double) x); | |
162 } | |
163 #endif | |
164 | |
165 #ifndef _GLIBCXX_HAVE_LOG10L | |
166 long double | |
167 log10l(long double x) | |
168 { | |
169 return log10((double) x); | |
170 } | |
171 #endif | |
172 | |
173 #ifndef _GLIBCXX_HAVE_MODFL | |
174 long double | |
175 modfl(long double x, long double *iptr) | |
176 { | |
177 double result, temp; | |
178 | |
179 result = modf((double) x, &temp); | |
180 *iptr = temp; | |
181 return result; | |
182 } | |
183 #endif | |
184 | |
185 #ifndef _GLIBCXX_HAVE_POWL | |
186 long double | |
187 powl(long double x, long double y) | |
188 { | |
189 return pow((double) x, (double) y); | |
190 } | |
191 #endif | |
192 | |
193 #ifndef _GLIBCXX_HAVE_SINL | |
194 long double | |
195 sinl(long double x) | |
196 { | |
197 return sin((double) x); | |
198 } | |
199 #endif | |
200 | |
201 #ifndef _GLIBCXX_HAVE_SINHL | |
202 long double | |
203 sinhl(long double x) | |
204 { | |
205 return sinh((double) x); | |
206 } | |
207 #endif | |
208 | |
209 #ifndef _GLIBCXX_HAVE_TANL | |
210 long double | |
211 tanl(long double x) | |
212 { | |
213 return tan((double) x); | |
214 } | |
215 #endif | |
216 | |
217 #ifndef _GLIBCXX_HAVE_TANHL | |
218 long double | |
219 tanhl(long double x) | |
220 { | |
221 return tanh((double) x); | |
222 } | |
223 #endif | |
224 } // extern "C" | |
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