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Added support for vectorized type casting of tensors

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This commit is contained in:
Benoit Steiner
2015-02-27 08:46:04 -08:00
parent f41b1f1666
commit 573b377110
9 changed files with 413 additions and 3 deletions
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56
unsupported/test/cxx11_tensor_casts.cpp
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@@ -17,7 +17,7 @@ using Eigen::array;
static void test_simple_cast()
{
Tensor<float, 2> ftensor(20,30);
ftensor.setRandom();
ftensor = ftensor.random() * 100.f;
Tensor<char, 2> chartensor(20,30);
chartensor.setRandom();
Tensor<std::complex<float>, 2> cplextensor(20,30);
@@ -35,7 +35,61 @@ static void test_simple_cast()
}
static void test_vectorized_cast()
{
Tensor<int, 2> itensor(20,30);
itensor = itensor.random() / 1000;
Tensor<float, 2> ftensor(20,30);
ftensor.setRandom();
Tensor<double, 2> dtensor(20,30);
dtensor.setRandom();
ftensor = itensor.cast<float>();
dtensor = itensor.cast<double>();
for (int i = 0; i < 20; ++i) {
for (int j = 0; j < 30; ++j) {
VERIFY_IS_EQUAL(itensor(i,j), static_cast<int>(ftensor(i,j)));
VERIFY_IS_EQUAL(dtensor(i,j), static_cast<double>(ftensor(i,j)));
}
}
}
static void test_big_to_small_type_cast()
{
Tensor<double, 2> dtensor(20, 30);
dtensor.setRandom();
Tensor<float, 2> ftensor(20, 30);
ftensor = dtensor.cast<float>();
for (int i = 0; i < 20; ++i) {
for (int j = 0; j < 30; ++j) {
VERIFY_IS_APPROX(dtensor(i,j), static_cast<double>(ftensor(i,j)));
}
}
}
static void test_small_to_big_type_cast()
{
Tensor<float, 2> ftensor(20, 30);
ftensor.setRandom();
Tensor<double, 2> dtensor(20, 30);
dtensor = ftensor.cast<double>();
for (int i = 0; i < 20; ++i) {
for (int j = 0; j < 30; ++j) {
VERIFY_IS_APPROX(dtensor(i,j), static_cast<double>(ftensor(i,j)));
}
}
}
void test_cxx11_tensor_casts()
{
CALL_SUBTEST(test_simple_cast());
CALL_SUBTEST(test_vectorized_cast());
CALL_SUBTEST(test_big_to_small_type_cast());
CALL_SUBTEST(test_small_to_big_type_cast());
}