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Fix test for nearly null input

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This commit is contained in:
Gael Guennebaud 2016-07-12 17:19:26 +02:00
parent 9ab35d8ba4
commit 263993a7b6
1 changed files with 10 additions and 5 deletions
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15
test/svd_common.h
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@ -42,9 +42,14 @@ void svd_check_full(const MatrixType& m, const SvdType& svd)
MatrixUType u = svd.matrixU(); MatrixUType u = svd.matrixU();
MatrixVType v = svd.matrixV(); MatrixVType v = svd.matrixV();
RealScalar scaling = m.cwiseAbs().maxCoeff(); RealScalar scaling = m.cwiseAbs().maxCoeff();
if(scaling<=(std::numeric_limits<RealScalar>::min)()) if(scaling<(std::numeric_limits<RealScalar>::min)())
scaling = RealScalar(1); {
VERIFY_IS_APPROX(m/scaling, u * (sigma/scaling) * v.adjoint()); VERIFY(sigma.cwiseAbs().maxCoeff() <= (std::numeric_limits<RealScalar>::min)());
}
else
{
VERIFY_IS_APPROX(m/scaling, u * (sigma/scaling) * v.adjoint());
}
VERIFY_IS_UNITARY(u); VERIFY_IS_UNITARY(u);
VERIFY_IS_UNITARY(v); VERIFY_IS_UNITARY(v);
} }
@ -336,7 +341,7 @@ void svd_underoverflow()
M << value_set(id(0)), value_set(id(1)), value_set(id(2)), value_set(id(3)); M << value_set(id(0)), value_set(id(1)), value_set(id(2)), value_set(id(3));
svd.compute(M,ComputeFullU|ComputeFullV); svd.compute(M,ComputeFullU|ComputeFullV);
CALL_SUBTEST( svd_check_full(M,svd) ); CALL_SUBTEST( svd_check_full(M,svd) );
id(k)++; id(k)++;
if(id(k)>=value_set.size()) if(id(k)>=value_set.size())
{ {
@ -344,7 +349,7 @@ void svd_underoverflow()
id.head(k).setZero(); id.head(k).setZero();
k=0; k=0;
} }
} while((id<int(value_set.size())).all()); } while((id<int(value_set.size())).all());
#if defined __INTEL_COMPILER #if defined __INTEL_COMPILER