*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
#ifndef __GST_MATH_COMPAT_H__
/* This header is not included automatically via gst/gst.h, you need to
* include it explicitly if you need it. */
+#ifndef _USE_MATH_DEFINES
#define _USE_MATH_DEFINES /* so MSVC defines M_PI etc. */
+#endif
#include <math.h>
#include <glib.h>
#define __GST_MATH_COMPAT_NEED_RINT
#define __GST_MATH_COMPAT_NEED_RINTF
+#define __GST_MATH_COMPAT_NEED_ISNAN
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#undef __GST_MATH_COMPAT_NEED_RINT
#undef __GST_MATH_COMPAT_NEED_RINTF
+#undef __GST_MATH_COMPAT_NEED_ISNAN
#endif
#if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
#undef __GST_MATH_COMPAT_NEED_RINT
#undef __GST_MATH_COMPAT_NEED_RINTF
+#undef __GST_MATH_COMPAT_NEED_ISNAN
#endif
#ifndef M_PI
return floorf (x + 0.5);
}
+static inline gboolean
+__gst_math_compat_isnan (double x)
+{
+ return x != x;
+}
+
#if defined (__GST_MATH_COMPAT_NEED_RINT) && !defined (rint)
#define rint(x) __gst_math_compat_rint(x)
#endif
#define rintf(x) __gst_math_compat_rintf(x)
#endif
+#if defined (__GST_MATH_COMPAT_NEED_ISNAN) && !defined (isnan)
+#define isnan(x) __gst_math_compat_isnan (x)
+#endif
+
+#ifndef NAN
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+#define __GST_NAN_BYTES { 0x7f, 0xc0, 0, 0 }
+#elif G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define __GST_NAN_BYTES { 0, 0, 0xc0, 0x7f }
+#endif
+static union {
+ unsigned char __c[4];
+ float __d;
+} __gst_nan_union G_GNUC_UNUSED = {
+ __GST_NAN_BYTES
+};
+#define NAN (__gst_nan_union.__d)
+#endif
+
G_END_DECLS
#endif /* __GST_MATH_COMPAT_H__ */