diff options
| author | William Pitcock <nenolod@dereferenced.org> | 2011-11-01 19:18:48 -0500 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2011-11-04 10:30:19 +0100 |
| commit | 7ae07d4f028849d30b4f260b3261d634f16d7331 (patch) | |
| tree | 855777d02d49d15c9bf362ebe1bf8a30c40f9b65 | |
| parent | 2086015b9a223586c1a2b8d7f015ad3a38bdf8bc (diff) | |
libm: implement a generic sincos().
We already provide sincos() on some archs, so we should ship a generic version.
Signed-off-by: William Pitcock <nenolod@dereferenced.org>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
| -rw-r--r-- | libc/sysdeps/linux/common/bits/mathcalls.h | 2 | ||||
| -rw-r--r-- | libm/Makefile.in | 2 | ||||
| -rw-r--r-- | libm/sincos.c | 48 |
3 files changed, 50 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/bits/mathcalls.h b/libc/sysdeps/linux/common/bits/mathcalls.h index 1e92b527e..013d2b2a7 100644 --- a/libc/sysdeps/linux/common/bits/mathcalls.h +++ b/libc/sysdeps/linux/common/bits/mathcalls.h @@ -90,7 +90,7 @@ __MATHCALLI (sinh,, (_Mdouble_ __x)) __MATHCALLI (tanh,, (_Mdouble_ __x)) _Mdouble_END_NAMESPACE -#if 0 /*def __USE_GNU*/ +#if defined __USE_GNU /* Cosine and sine of X. */ __MATHDECL (void,sincos,, (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx)) diff --git a/libm/Makefile.in b/libm/Makefile.in index af949e82c..23a55b369 100644 --- a/libm/Makefile.in +++ b/libm/Makefile.in @@ -73,7 +73,7 @@ libm_CSRC := \ s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \ s_fdim.c s_fma.c s_fmax.c s_fmin.c \ s_remquo.c w_exp2.c \ - cexp.c + cexp.c sincos.c # Not implemented [yet?], see comment in float_wrappers.c: # fdimf.o fmaf.o fmaxf.o fminf.o diff --git a/libm/sincos.c b/libm/sincos.c new file mode 100644 index 000000000..df6b670f8 --- /dev/null +++ b/libm/sincos.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <features.h> +#include <math.h> + +libm_hidden_proto(sincos) +void sincos(double x, double *s, double *c) +{ + *s = sin(x); + *c = cos(x); +} +libm_hidden_def(sincos) + +libm_hidden_proto(sincosf) +void sincosf(float x, float *s, float *c) +{ + *s = sinf(x); + *c = cosf(x); +} +libm_hidden_def(sincosf) + +#if defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ && !defined __NO_LONG_DOUBLE_MATH +libm_hidden_proto(sincosl) +void sincosl(long double x, long double *s, long double *c) +{ + *s = sinl(x); + *c = cosl(x); +} +libm_hidden_def(sincosl) +#endif |