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Bug #1777: make the scalar and packet path consistent for the logistic function + respective unit test

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This commit is contained in:
Gael Guennebaud
2020-05-31 00:53:37 +02:00
parent 99b7f7cb9c
commit 029a76e115
2 changed files with 19 additions and 14 deletions
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15
test/packetmath.cpp
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@@ -447,6 +447,21 @@ template<typename Scalar,typename Packet> void packetmath_real()
VERIFY((numext::isnan)(data2[0]));
}
{
internal::scalar_logistic_op<Scalar> logistic;
for (int i=0; i<size; ++i)
{
data1[i] = internal::random<Scalar>(-20,20);
}
internal::pstore(data2, logistic.packetOp(internal::pload<Packet>(data1)));
for (int i=0; i<PacketSize; ++i) {
VERIFY_IS_APPROX(data2[i],logistic(data1[i]));
#ifdef EIGEN_VECTORIZE // don't check for exactness when using the i387 FPU
VERIFY_IS_EQUAL(data2[i],logistic(data1[i]));
#endif
}
}
#if EIGEN_HAS_C99_MATH && (__cplusplus > 199711L)
data1[0] = std::numeric_limits<Scalar>::infinity();
data1[1] = Scalar(-1);