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| author | Martin Storsjö <martin@martin.st> | 2011-04-21 13:02:38 +0200 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2011-04-21 14:13:09 +0300 |
| commit | 23d3931a6a8a37bb7e86bd6cb4709eb46031bfe1 (patch) | |
| tree | d11e8281215886b7ce648bd5f7fd115a8cba8638 | |
| parent | 32a128522ad392d2bca67165fda1d2fe30262189 (diff) | |
| download | ffmpeg-23d3931a6a8a37bb7e86bd6cb4709eb46031bfe1.tar.gz | |
Provide a fallback version of the libm function trunc
This fixes compilation on DOS.
Signed-off-by: Martin Storsjö <martin@martin.st>
| -rwxr-xr-x | configure | 2 | ||||
| -rw-r--r-- | libavutil/libm.h | 7 |
2 files changed, 9 insertions, 0 deletions
@@ -1119,6 +1119,7 @@ HAVE_LIST=" sys_videoio_h ten_operands threads + trunc truncf vfp_args VirtualAlloc @@ -2852,6 +2853,7 @@ check_mathfunc lrint check_mathfunc lrintf check_mathfunc round check_mathfunc roundf +check_mathfunc trunc check_mathfunc truncf # these are off by default, so fail if requested and not available diff --git a/libavutil/libm.h b/libavutil/libm.h index 704bcf9554..783f3cdfab 100644 --- a/libavutil/libm.h +++ b/libavutil/libm.h @@ -86,6 +86,13 @@ 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) { |