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Fix bug #996: fix comparisons to 0 instead of Scalar(0)

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(grafted from e0cff9ae0db1f37d9d463f8af09fd8298a6ccd0d
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This commit is contained in:
Gael Guennebaud 2015-04-15 14:48:53 +02:00
parent b03209a7a6
commit 058fa781d7
1 changed files with 2 additions and 2 deletions
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4
Eigen/src/Geometry/Quaternion.h
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@ -637,7 +637,7 @@ inline Quaternion<typename internal::traits<Derived>::Scalar> QuaternionBase<Der
{ {
// FIXME should this function be called multiplicativeInverse and conjugate() be called inverse() or opposite() ?? // FIXME should this function be called multiplicativeInverse and conjugate() be called inverse() or opposite() ??
Scalar n2 = this->squaredNorm(); Scalar n2 = this->squaredNorm();
if (n2 > 0) if (n2 > Scalar(0))
return Quaternion<Scalar>(conjugate().coeffs() / n2); return Quaternion<Scalar>(conjugate().coeffs() / n2);
else else
{ {
@ -710,7 +710,7 @@ QuaternionBase<Derived>::slerp(const Scalar& t, const QuaternionBase<OtherDerive
scale0 = sin( ( Scalar(1) - t ) * theta) / sinTheta; scale0 = sin( ( Scalar(1) - t ) * theta) / sinTheta;
scale1 = sin( ( t * theta) ) / sinTheta; scale1 = sin( ( t * theta) ) / sinTheta;
} }
if(d<0) scale1 = -scale1; if(d<Scalar(0)) scale1 = -scale1;
return Quaternion<Scalar>(scale0 * coeffs() + scale1 * other.coeffs()); return Quaternion<Scalar>(scale0 * coeffs() + scale1 * other.coeffs());
} }