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Add selftest code for av_cmp_q(). 

Originally committed as revision 25339 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-10-05 01:43:34 +00:00
parent dec1126915
commit 59a3bf0e51
1 changed files with 20 additions and 0 deletions
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20
libavutil/rational.c
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@ -133,3 +133,23 @@ int av_find_nearest_q_idx(AVRational q, const AVRational* q_list)
return nearest_q_idx;
}
#ifdef TEST
main(){
AVRational a,b;
for(a.num=-2; a.num<=2; a.num++){
for(a.den=-2; a.den<=2; a.den++){
for(b.num=-2; b.num<=2; b.num++){
for(b.den=-2; b.den<=2; b.den++){
int c= av_cmp_q(a,b);
double d= av_q2d(a) == av_q2d(b) ? 0 : (av_q2d(a) - av_q2d(b));
if(d>0) d=1;
else if(d<0) d=-1;
else if(d != d) d= INT_MIN;
if(c!=d) av_log(0, AV_LOG_ERROR, "%d/%d %d/%d, %d %f\n", a.num, a.den, b.num, b.den, c,d);
}
}
}
}
}
#endif