diff options
Diffstat (limited to 'core/math/convex_hull.cpp')
| -rw-r--r-- | core/math/convex_hull.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/core/math/convex_hull.cpp b/core/math/convex_hull.cpp index 684814b1ae..8146ba9baf 100644 --- a/core/math/convex_hull.cpp +++ b/core/math/convex_hull.cpp @@ -735,8 +735,6 @@ int32_t ConvexHullInternal::Rational64::compare(const Rational64 &b) const { return 0; } - // return (numerator * b.denominator > b.numerator * denominator) ? sign : (numerator * b.denominator < b.numerator * denominator) ? -sign : 0; - #ifdef USE_X86_64_ASM int32_t result; @@ -757,10 +755,9 @@ int32_t ConvexHullInternal::Rational64::compare(const Rational64 &b) const { : "=&b"(result), [tmp] "=&r"(tmp), "=a"(dummy) : "a"(denominator), [bn] "g"(b.numerator), [tn] "g"(numerator), [bd] "g"(b.denominator) : "%rdx", "cc"); - return result ? result ^ sign // if sign is +1, only bit 0 of result is inverted, which does not change the sign of result (and cannot result in zero) - // if sign is -1, all bits of result are inverted, which changes the sign of result (and again cannot result in zero) - : - 0; + // if sign is +1, only bit 0 of result is inverted, which does not change the sign of result (and cannot result in zero) + // if sign is -1, all bits of result are inverted, which changes the sign of result (and again cannot result in zero) + return result ? result ^ sign : 0; #else |