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Protect further isnan/isfinite/isinf calls

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This commit is contained in:
Christoph Hertzberg
2015-08-16 14:00:02 +02:00
parent a40f6ab276
commit d6a4805fdf
5 changed files with 47 additions and 47 deletions
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50
test/stable_norm.cpp
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@@ -40,7 +40,7 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
&& "the stable norm algorithm cannot be guaranteed on this computer");
Scalar inf = std::numeric_limits<RealScalar>::infinity();
if(NumTraits<Scalar>::IsComplex && numext::isnan(inf*RealScalar(1)) )
if(NumTraits<Scalar>::IsComplex && (numext::isnan)(inf*RealScalar(1)) )
{
complex_real_product_ok = false;
static bool first = true;
@@ -81,18 +81,18 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
RealScalar size = static_cast<RealScalar>(m.size());
// test numext::isfinite
VERIFY(!numext::isfinite( std::numeric_limits<RealScalar>::infinity()));
VERIFY(!numext::isfinite(sqrt(-abs(big))));
VERIFY(!(numext::isfinite)( std::numeric_limits<RealScalar>::infinity()));
VERIFY(!(numext::isfinite)(sqrt(-abs(big))));
// test overflow
VERIFY(numext::isfinite(sqrt(size)*abs(big)));
VERIFY((numext::isfinite)(sqrt(size)*abs(big)));
VERIFY_IS_NOT_APPROX(sqrt(copy(vbig.squaredNorm())), abs(sqrt(size)*big)); // here the default norm must fail
VERIFY_IS_APPROX(vbig.stableNorm(), sqrt(size)*abs(big));
VERIFY_IS_APPROX(vbig.blueNorm(), sqrt(size)*abs(big));
VERIFY_IS_APPROX(vbig.hypotNorm(), sqrt(size)*abs(big));
// test underflow
VERIFY(numext::isfinite(sqrt(size)*abs(small)));
VERIFY((numext::isfinite)(sqrt(size)*abs(small)));
VERIFY_IS_NOT_APPROX(sqrt(copy(vsmall.squaredNorm())), abs(sqrt(size)*small)); // here the default norm must fail
VERIFY_IS_APPROX(vsmall.stableNorm(), sqrt(size)*abs(small));
VERIFY_IS_APPROX(vsmall.blueNorm(), sqrt(size)*abs(small));
@@ -115,39 +115,39 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
{
v = vrand;
v(i,j) = std::numeric_limits<RealScalar>::quiet_NaN();
VERIFY(!numext::isfinite(v.squaredNorm())); VERIFY(numext::isnan(v.squaredNorm()));
VERIFY(!numext::isfinite(v.norm())); VERIFY(numext::isnan(v.norm()));
VERIFY(!numext::isfinite(v.stableNorm())); VERIFY(numext::isnan(v.stableNorm()));
VERIFY(!numext::isfinite(v.blueNorm())); VERIFY(numext::isnan(v.blueNorm()));
VERIFY(!numext::isfinite(v.hypotNorm())); VERIFY(numext::isnan(v.hypotNorm()));
VERIFY(!(numext::isfinite)(v.squaredNorm())); VERIFY((numext::isnan)(v.squaredNorm()));
VERIFY(!(numext::isfinite)(v.norm())); VERIFY((numext::isnan)(v.norm()));
VERIFY(!(numext::isfinite)(v.stableNorm())); VERIFY((numext::isnan)(v.stableNorm()));
VERIFY(!(numext::isfinite)(v.blueNorm())); VERIFY((numext::isnan)(v.blueNorm()));
VERIFY(!(numext::isfinite)(v.hypotNorm())); VERIFY((numext::isnan)(v.hypotNorm()));
}
// +inf
{
v = vrand;
v(i,j) = std::numeric_limits<RealScalar>::infinity();
VERIFY(!numext::isfinite(v.squaredNorm())); VERIFY(isPlusInf(v.squaredNorm()));
VERIFY(!numext::isfinite(v.norm())); VERIFY(isPlusInf(v.norm()));
VERIFY(!numext::isfinite(v.stableNorm()));
VERIFY(!(numext::isfinite)(v.squaredNorm())); VERIFY(isPlusInf(v.squaredNorm()));
VERIFY(!(numext::isfinite)(v.norm())); VERIFY(isPlusInf(v.norm()));
VERIFY(!(numext::isfinite)(v.stableNorm()));
if(complex_real_product_ok){
VERIFY(isPlusInf(v.stableNorm()));
}
VERIFY(!numext::isfinite(v.blueNorm())); VERIFY(isPlusInf(v.blueNorm()));
VERIFY(!numext::isfinite(v.hypotNorm())); VERIFY(isPlusInf(v.hypotNorm()));
VERIFY(!(numext::isfinite)(v.blueNorm())); VERIFY(isPlusInf(v.blueNorm()));
VERIFY(!(numext::isfinite)(v.hypotNorm())); VERIFY(isPlusInf(v.hypotNorm()));
}
// -inf
{
v = vrand;
v(i,j) = -std::numeric_limits<RealScalar>::infinity();
VERIFY(!numext::isfinite(v.squaredNorm())); VERIFY(isPlusInf(v.squaredNorm()));
VERIFY(!numext::isfinite(v.norm())); VERIFY(isPlusInf(v.norm()));
VERIFY(!numext::isfinite(v.stableNorm()));
VERIFY(!(numext::isfinite)(v.squaredNorm())); VERIFY(isPlusInf(v.squaredNorm()));
VERIFY(!(numext::isfinite)(v.norm())); VERIFY(isPlusInf(v.norm()));
VERIFY(!(numext::isfinite)(v.stableNorm()));
if(complex_real_product_ok) {
VERIFY(isPlusInf(v.stableNorm()));
}
VERIFY(!numext::isfinite(v.blueNorm())); VERIFY(isPlusInf(v.blueNorm()));
VERIFY(!numext::isfinite(v.hypotNorm())); VERIFY(isPlusInf(v.hypotNorm()));
VERIFY(!(numext::isfinite)(v.blueNorm())); VERIFY(isPlusInf(v.blueNorm()));
VERIFY(!(numext::isfinite)(v.hypotNorm())); VERIFY(isPlusInf(v.hypotNorm()));
}
// mix
@@ -157,11 +157,11 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
v = vrand;
v(i,j) = -std::numeric_limits<RealScalar>::infinity();
v(i2,j2) = std::numeric_limits<RealScalar>::quiet_NaN();
VERIFY(!numext::isfinite(v.squaredNorm())); VERIFY(numext::isnan(v.squaredNorm()));
VERIFY(!numext::isfinite(v.norm())); VERIFY(numext::isnan(v.norm()));
VERIFY(!numext::isfinite(v.stableNorm())); VERIFY(numext::isnan(v.stableNorm()));
VERIFY(!numext::isfinite(v.blueNorm())); VERIFY(numext::isnan(v.blueNorm()));
VERIFY(!numext::isfinite(v.hypotNorm())); VERIFY(numext::isnan(v.hypotNorm()));
VERIFY(!(numext::isfinite)(v.squaredNorm())); VERIFY((numext::isnan)(v.squaredNorm()));
VERIFY(!(numext::isfinite)(v.norm())); VERIFY((numext::isnan)(v.norm()));
VERIFY(!(numext::isfinite)(v.stableNorm())); VERIFY((numext::isnan)(v.stableNorm()));
VERIFY(!(numext::isfinite)(v.blueNorm())); VERIFY((numext::isnan)(v.blueNorm()));
VERIFY(!(numext::isfinite)(v.hypotNorm())); VERIFY((numext::isnan)(v.hypotNorm()));
}
}