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bug #1461: fix compilation of Map<const Quaternion>::x()

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This commit is contained in:
Gael Guennebaud
2017-08-22 15:10:42 +02:00
parent fc39d5954b
commit bc91a2df8b
2 changed files with 30 additions and 12 deletions
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13
test/geo_quaternion.cpp
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@@ -231,6 +231,19 @@ template<typename Scalar> void mapQuaternion(void){
VERIFY_IS_APPROX(mq3*mq2, q3*q2);
VERIFY_IS_APPROX(mcq1*mq2, q1*q2);
VERIFY_IS_APPROX(mcq3*mq2, q3*q2);
// Bug 1461, compilation issue with Map<const Quat>::w(), and other reference/constness checks:
VERIFY_IS_APPROX(mcq3.coeffs().x() + mcq3.coeffs().y() + mcq3.coeffs().z() + mcq3.coeffs().w(), mcq3.coeffs().sum());
VERIFY_IS_APPROX(mcq3.x() + mcq3.y() + mcq3.z() + mcq3.w(), mcq3.coeffs().sum());
mq3.w() = 1;
const Quaternionx& cq3(q3);
VERIFY( &cq3.x() == &q3.x() );
const MQuaternionUA& cmq3(mq3);
VERIFY( &cmq3.x() == &mq3.x() );
// FIXME the following should be ok. The problem is that currently the LValueBit flag
// is used to determine wether we can return a coeff by reference or not, which is not enough for Map<const ...>.
//const MCQuaternionUA& cmcq3(mcq3);
//VERIFY( &cmcq3.x() == &mcq3.x() );
}
template<typename Scalar> void quaternionAlignment(void){