FFmpeg
math.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <math.h>
20 
21 #define FUN(name, type, op) \
22 type name(type x, type y) \
23 { \
24  if (fpclassify(x) == FP_NAN) return y; \
25  if (fpclassify(y) == FP_NAN) return x; \
26  return x op y ? x : y; \
27 }
28 
29 FUN(fmin, double, <)
30 FUN(fmax, double, >)
31 FUN(fminf, float, <)
32 FUN(fmaxf, float, >)
33 
34 long double fmodl(long double x, long double y)
35 {
36  return fmod(x, y);
37 }
38 
39 long double scalbnl(long double x, int exp)
40 {
41  return scalbn(x, exp);
42 }
43 
44 long double copysignl(long double x, long double y)
45 {
46  return copysign(x, y);
47 }
float fminf(float, float)
long double fmodl(long double x, long double y)
Definition: math.c:34
long double scalbnl(long double x, int exp)
Definition: math.c:39
#define FUN(name, type, op)
Definition: math.c:21
int8_t exp
Definition: eval.c:72
float fmaxf(float, float)
long double copysignl(long double x, long double y)
Definition: math.c:44
double fmax(double, double)
static av_always_inline double copysign(double x, double y)
Definition: libm.h:68
double fmin(double, double)