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Moved some utilities to TensorMeta.h to make it easier to reuse them accross several tensor operations.

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Created the TensorDimensionList class to encode the list of all the dimensions of a tensor of rank n. This could be done using TensorIndexList, however TensorIndexList require cxx11 which isn't yet supported as widely as we'd like.
This commit is contained in:
Benoit Steiner
2015-06-29 10:49:55 -07:00
parent 392a30db82
commit 3625734bc8
7 changed files with 308 additions and 35 deletions
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25
test/packetmath.cpp
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@@ -351,12 +351,33 @@ template<typename Scalar> void packetmath_real()
CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasLog, std::log, internal::plog);
{
data1[0] = std::numeric_limits<Scalar>::quiet_NaN();
data1[1] = std::numeric_limits<Scalar>::epsilon();
packet_helper<internal::packet_traits<Scalar>::HasLog,Packet> h;
h.store(data2, internal::plog(h.load(data1)));
VERIFY(numext::isnan(data2[0]));
VERIFY(std::isnan(data2[0]));
// VERIFY_IS_EQUAL(std::log(std::numeric_limits<Scalar>::epsilon()), data2[1]);
data1[0] = -std::numeric_limits<Scalar>::epsilon();
data1[1] = 0;
h.store(data2, internal::plog(h.load(data1)));
VERIFY(std::isnan(data2[0]));
// VERIFY_IS_EQUAL(std::log(0), data2[1]);
data1[0] = (std::numeric_limits<Scalar>::min)();
data1[1] = -(std::numeric_limits<Scalar>::min)();
h.store(data2, internal::plog(h.load(data1)));
VERIFY_IS_EQUAL(std::log((std::numeric_limits<Scalar>::min)()), data2[0]);
// VERIFY(std::isnan(data2[1]));
data1[0] = std::numeric_limits<Scalar>::denorm_min();
data1[1] = -std::numeric_limits<Scalar>::denorm_min();
h.store(data2, internal::plog(h.load(data1)));
// VERIFY_IS_EQUAL(std::log(std::numeric_limits<Scalar>::denorm_min()), data2[0]);
// VERIFY(std::isnan(data2[1]));
data1[0] = -1.0f;
h.store(data2, internal::plog(h.load(data1)));
VERIFY(numext::isnan(data2[0]));
VERIFY(std::isnan(data2[0]));
#if !EIGEN_FAST_MATH
h.store(data2, internal::psqrt(h.load(data1)));
VERIFY(numext::isnan(data2[0]));