summaryrefslogtreecommitdiff
path: root/libm/float_wrappers.c
blob: 35887dde29c483edf1a963f2e00456eb22aea164 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
/*
 * Wrapper functions implementing all the float math functions
 * defined by SuSv3 by actually calling the double version of
 * each function and then casting the result back to a float
 * to return to the user.
 *
 * Copyright (C) 2005 by Erik Andersen <andersen@uclibc.org>
 *
 * GNU Lesser General Public License version 2.1 or later.
 */

#include <features.h>
/* Prevent math.h from defining colliding inlines */
#undef __USE_EXTERN_INLINES
#include <math.h>
#include <complex.h>


#define WRAPPER1(func) \
float func##f (float x) \
{ \
	return (float) func((double)x); \
}
#define int_WRAPPER1(func) \
int func##f (float x) \
{ \
	return func((double)x); \
}
#define long_WRAPPER1(func) \
long func##f (float x) \
{ \
	return func((double)x); \
}
#define long_long_WRAPPER1(func) \
long long func##f (float x) \
{ \
	return func((double)x); \
}

/* Implement the following, as defined by SuSv3 */
#if 0
float       asinhf(float);
float       atanf(float);
float       cargf(float complex);
float       cbrtf(float);
float       ceilf(float);
float       copysignf(float, float);
float       cosf(float);
float       erfcf(float);
float       erff(float);
float       expm1f(float);
float       fabsf(float);
float       floorf(float);
float       frexpf(float value, int *);
int         ilogbf(float);
float       ldexpf(float, int);
long long   llroundf(float);
float       log1pf(float);
float       logbf(float);
long        lroundf(float);
float       modff(float, float *);
float       rintf(float);
float       roundf(float);
float       scalbnf(float, int);
float       sinf(float);
float       tanf(float);
float       tanhf(float);
#endif

/* The following functions implemented as wrappers
 * in separate files (w_funcf.c)
 */
#if 0
float       acosf(float);
float       acoshf(float);
float       asinf(float);
float       atan2f(float, float);
float       atanhf(float);
float       coshf(float);
float       exp2f(float);
float       expf(float);
float       fmodf(float, float);
float       hypotf(float, float);
float       lgammaf(float);
float       log10f(float);
float       log2f(float);
float       logf(float);
float       powf(float, float);
float       remainderf(float, float);
float       sinhf(float);
float       sqrtf(float);
float		j0f(float x);
float		j1f(float x);
float		jnf(int n, float x);
float		y0f(float x);
float		y1f(float x);
float		ynf(int n, float x);
float 		tgammaf(float x);
float 		scalbf(float x, float fn);
float 		gammaf(float x);
float	 	scalbl(float x, float fn);
#endif

#ifdef L_asinhf
WRAPPER1(asinh)
#endif

#ifdef L_atanf
WRAPPER1(atan)
#endif

#ifdef L_cargf
float cargf (float complex x)
{
	return (float) carg( (double complex)x );
}
#endif

#ifdef L_cbrtf
WRAPPER1(cbrt)
#endif

#ifdef L_ceilf
WRAPPER1(ceil)
#endif

#ifdef L_copysignf
float copysignf (float x, float y)
{
	return (float) copysign( (double)x, (double)y );
}
#endif

#ifdef L_cosf
WRAPPER1(cos)
libm_hidden_def(cosf)
#endif

#ifdef L_erfcf
WRAPPER1(erfc)
#endif

#ifdef L_erff
WRAPPER1(erf)
#endif

#ifdef L_expm1f
WRAPPER1(expm1)
#endif

#ifdef L_fabsf
WRAPPER1(fabs)
#endif

#ifdef L_fdimf
float fdimf (float x, float y)
{
	return (float) fdim( (double)x, (double)y );
}
#endif

#ifdef L_floorf
WRAPPER1(floor)
#endif

#ifdef L_fmaf
float fmaf (float x, float y, float z)
{
	return (float) fma( (double)x, (double)y, (double)z );
}
#endif

#ifdef L_fmaxf
float fmaxf (float x, float y)
{
	return (float) fmax( (double)x, (double)y );
}
#endif

#ifdef L_fminf
float fminf (float x, float y)
{
	return (float) fmin( (double)x, (double)y );
}
#endif

#ifdef L_frexpf
float frexpf (float x, int *_exp)
{
	return (float) frexp( (double)x, _exp );
}
#endif

#ifdef L_ilogbf
int_WRAPPER1(ilogb)
#endif

#ifdef L_ldexpf
float ldexpf (float x, int _exp)
{
	return (float) ldexp( (double)x, _exp );
}
#endif

#ifdef L_llrintf
long_long_WRAPPER1(llrint)
#endif

#ifdef L_llroundf
long_long_WRAPPER1(llround)
#endif

#ifdef L_log1pf
WRAPPER1(log1p)
#endif

#ifdef L_logbf
WRAPPER1(logb)
#endif

#ifdef L_lrintf
long_WRAPPER1(lrint)
#endif

#ifdef L_lroundf
long_WRAPPER1(lround)
#endif

#ifdef L_modff
float modff (float x, float *iptr)
{
	double y, result;
	result = modf( (double)x, &y );
	*iptr = (float)y;
	return (float) result;
}
#endif

#ifdef L_nearbyintf
WRAPPER1(nearbyint)
#endif

#ifdef L_nexttowardf
float nexttowardf (float x, long double y)
{
	return (float) nexttoward( (double)x, (long double)y );
}
#endif

#ifdef L_remquof
float remquof (float x, float y, int *quo)
{
	return (float) remquo( (double)x, (double)y, quo );
}
#endif

#ifdef L_rintf
WRAPPER1(rint)
#endif

#ifdef L_roundf
WRAPPER1(round)
#endif

#ifdef L_scalblnf
float scalblnf (float x, long _exp)
{
	return (float) scalbln( (double)x, _exp );
}
#endif

#ifdef L_scalbnf
float scalbnf (float x, int _exp)
{
	return (float) scalbn( (double)x, _exp );
}
#endif

#ifdef L_sinf
WRAPPER1(sin)
libm_hidden_def(sinf)
#endif

#ifdef L_tanf
WRAPPER1(tan)
#endif

#ifdef L_tanhf
WRAPPER1(tanh)
#endif

#ifdef L_truncf
WRAPPER1(trunc)
#endif

#ifdef L_significandf
WRAPPER1(significand)
#endif