X-Git-Url: https://git.libav.org/?p=libav.git;a=blobdiff_plain;f=libavutil%2Flibm.h;h=b5821e82679d397ea133b3a66b4aed5b73c1df11;hp=704bcf95541e08aa3fc20171d7276214e297343f;hb=46df708b45b34191973ef5181b052ce8e583bb4e;hpb=2912e87a6c9264d556734e2bf94a99c64cf9b102

diff --git a/libavutil/libm.h b/libavutil/libm.h
index 704bcf9554..b5821e8267 100644
--- a/libavutil/libm.h
+++ b/libavutil/libm.h
@@ -27,6 +27,14 @@
 #include <math.h>
 #include "config.h"
 #include "attributes.h"
+#include "intfloat.h"
+
+#if !HAVE_CBRTF
+static av_always_inline float cbrtf(float x)
+{
+    return x < 0 ? -powf(-x, 1.0 / 3.0) : powf(x, 1.0 / 3.0);
+}
+#endif
 
 #if !HAVE_EXP2
 #undef exp2
@@ -38,6 +46,26 @@
 #define exp2f(x) ((float)exp2(x))
 #endif /* HAVE_EXP2F */
 
+#if !HAVE_ISINF
+static av_always_inline av_const int isinf(float x)
+{
+    uint32_t v = av_float2int(x);
+    if ((v & 0x7f800000) != 0x7f800000)
+        return 0;
+    return !(v & 0x007fffff);
+}
+#endif /* HAVE_ISINF */
+
+#if !HAVE_ISNAN
+static av_always_inline av_const int isnan(float x)
+{
+    uint32_t v = av_float2int(x);
+    if ((v & 0x7f800000) != 0x7f800000)
+        return 0;
+    return v & 0x007fffff;
+}
+#endif /* HAVE_ISNAN */
+
 #if !HAVE_LLRINT
 #undef llrint
 #define llrint(x) ((long long)rint(x))
@@ -86,6 +114,13 @@ static av_always_inline av_const float roundf(float x)
 }
 #endif /* HAVE_ROUNDF */
 
+#if !HAVE_TRUNC
+static av_always_inline av_const double trunc(double x)
+{
+    return (x > 0) ? floor(x) : ceil(x);
+}
+#endif /* HAVE_TRUNC */
+
 #if !HAVE_TRUNCF
 static av_always_inline av_const float truncf(float x)
 {