Martin Storsjö <[email protected]> writes: > From: "Ronald S. Bultje" <[email protected]> > > Some compilers, MSVC among them, don't recognize the divisions by > zero as meaning infinity/nan. > > These macros should, according to the standard, expand to constant > expressions, but this shouldn't matter for our usage. > --- > libavutil/mathematics.h | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h > index a734b75..043dd0f 100644 > --- a/libavutil/mathematics.h > +++ b/libavutil/mathematics.h > @@ -25,6 +25,7 @@ > #include <math.h> > #include "attributes.h" > #include "rational.h" > +#include "intfloat.h" > > #ifndef M_LOG2_10 > #define M_LOG2_10 3.32192809488736234787 /* log_2 10 */ > @@ -33,10 +34,10 @@ > #define M_PHI 1.61803398874989484820 /* phi / golden ratio */ > #endif > #ifndef NAN > -#define NAN (0.0/0.0) > +#define NAN av_int2float(0x7fc00000) > #endif > #ifndef INFINITY > -#define INFINITY (1.0/0.0) > +#define INFINITY av_int2float(0x7f800000) > #endif > > /** > --
Seems OK, but did you make sure it works as expected? -- Måns Rullgård [email protected] _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
