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Add truncf() replacement function.

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Patch by Michael Kostylev <mik at it-1 dot ru>

Originally committed as revision 16555 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Kostylev 2009-01-11 22:10:04 +00:00 committed by Ramiro Polla
parent b9609848f3
commit 7b04b8a057
2 changed files with 9 additions and 1 deletions
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3
configure vendored
View File

@ -886,6 +886,7 @@ HAVE_LIST="
sys_videoio_h sys_videoio_h
termios_h termios_h
threads threads
truncf
winsock2_h winsock2_h
yasm yasm
" "
@ -1875,7 +1876,7 @@ done
check_lib math.h sin -lm check_lib math.h sin -lm
# test for C99 functions in math.h # test for C99 functions in math.h
for func in llrint lrint lrintf round roundf; do for func in llrint lrint lrintf round roundf truncf; do
check_exec <<EOF && enable $func || disable $func check_exec <<EOF && enable $func || disable $func
#include <math.h> #include <math.h>
int main(void) { return ($func(3.999f) > 0)?0:1; } int main(void) { return ($func(3.999f) > 0)?0:1; }

7
libavutil/internal.h
View File

@ -294,4 +294,11 @@ static av_always_inline av_const float roundf(float x)
} }
#endif /* HAVE_ROUNDF */ #endif /* HAVE_ROUNDF */
#ifndef HAVE_TRUNCF
static av_always_inline av_const float truncf(float x)
{
return (x > 0) ? floor(x) : ceil(x);
}
#endif /* HAVE_TRUNCF */
#endif /* AVUTIL_INTERNAL_H */ #endif /* AVUTIL_INTERNAL_H */