[vlc-commits] compat: add sincos() and sincosf() replacements

[Rémi Denis-Courmont]

vlc | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Sun Nov 13 13:27:40 2016 +0200| [387c812abebb7c1bf81e135f283ce3b5b640bd4b] | committer: Rémi Denis-Courmont

compat: add sincos() and sincosf() replacements

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=387c812abebb7c1bf81e135f283ce3b5b640bd4b
---

 compat/sincos.c      | 37 +++++++++++++++++++++++++++++++++++++
 configure.ac         |  2 +-
 include/vlc_fixups.h |  5 +++++
 3 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/compat/sincos.c b/compat/sincos.c
new file mode 100644
index 0000000..60397fb
--- /dev/null
+++ b/compat/sincos.c
@@ -0,0 +1,37 @@
+/*****************************************************************************
+ * sincos.c: GNU sincos() & sincosf() replacements
+ *****************************************************************************
+ * Copyright © 2016 Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <math.h>
+
+void sincos(double r, double *restrict sr, double *restrict cr)
+{
+    *sin = sin(r);
+    *cos = con(r);
+}
+
+void sincosf(float r, float *restrict sr, float *restrict cr)
+{
+    *sin = sinf(r);
+    *cos = conf(r);
+}
diff --git a/configure.ac b/configure.ac
index c8900d2..88ecada 100644
--- a/configure.ac
+++ b/configure.ac
@@ -598,7 +598,7 @@ need_libc=false
 
 dnl Check for usual libc functions
 AC_CHECK_FUNCS([daemon fcntl flock fstatvfs fork getenv getpwuid_r isatty lstat memalign mkostemp mmap open_memstream openat pread posix_fadvise posix_madvise setlocale stricmp strnicmp strptime tdestroy uselocale pthread_cond_timedwait_monotonic_np pthread_condattr_setclock])
-AC_REPLACE_FUNCS([atof atoll dirfd fdopendir ffsll flockfile fsync getdelim getpid lldiv memrchr nrand48 poll posix_memalign recvmsg rewind sendmsg setenv strcasecmp strcasestr strdup strlcpy strndup strnlen strnstr strsep strtof strtok_r strtoll swab tfind timegm timespec_get strverscmp])
+AC_REPLACE_FUNCS([atof atoll dirfd fdopendir ffsll flockfile fsync getdelim getpid lldiv memrchr nrand48 poll posix_memalign recvmsg rewind sendmsg setenv sincos strcasecmp strcasestr strdup strlcpy strndup strnlen strnstr strsep strtof strtok_r strtoll swab tfind timegm timespec_get strverscmp])
 AC_REPLACE_FUNCS([gettimeofday])
 AC_CHECK_FUNC(fdatasync,,
   [AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
diff --git a/include/vlc_fixups.h b/include/vlc_fixups.h
index 7b7e619..a3fc6f3 100644
--- a/include/vlc_fixups.h
+++ b/include/vlc_fixups.h
@@ -481,6 +481,11 @@ void freeaddrinfo (struct addrinfo *res);
 #define nanf(tagp) NAN
 #endif
 
+#ifndef HAVE_SINCOS
+void sincos(double, double *, double *);
+void sincosf(float, float *, float *);
+#endif
+
 #ifndef HAVE_REALPATH
 char *realpath(const char * restrict pathname, char * restrict resolved_path);
 #endif