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/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <gtest/gtest.h>
#include <arrayfire.h>
#include <af/dim4.hpp>
#include <af/traits.hpp>
#include <string>
#include <vector>
#include <testHelpers.hpp>
using std::string;
using std::vector;
using af::cdouble;
using af::cfloat;
using af::array;
template<typename T>
class Var : public ::testing::Test
{
};
typedef ::testing::Types< float, double, cfloat, cdouble, uint, int, uintl, intl, char, uchar, short, ushort> TestTypes;
TYPED_TEST_CASE(Var, TestTypes);
template<typename T>
struct elseType {
typedef typename cond_type< is_same_type<T, uintl>::value ||
is_same_type<T, intl> ::value,
double,
T>::type type;
};
template<typename T>
struct varOutType {
typedef typename cond_type< is_same_type<T, float >::value ||
is_same_type<T, int >::value ||
is_same_type<T, uint >::value ||
is_same_type<T, short >::value ||
is_same_type<T, ushort>::value ||
is_same_type<T, uchar >::value ||
is_same_type<T, char >::value,
float,
typename elseType<T>::type>::type type;
};
//////////////////////////////// CPP ////////////////////////////////////
// test var_all interface using cpp api
template<typename T>
void testCPPVar(T const_value, af::dim4 dims)
{
typedef typename varOutType<T>::type outType;
if (noDoubleTests<T>()) return;
if (noDoubleTests<outType>()) return;
using af::array;
using af::var;
vector<T> hundred(dims.elements(), const_value);
outType gold = outType(0);
array a(dims, &(hundred.front()));
outType output = var<outType>(a, false);
ASSERT_NEAR(::real(output), ::real(gold), 1.0e-3);
ASSERT_NEAR(::imag(output), ::imag(gold), 1.0e-3);
output = var<outType>(a, true);
ASSERT_NEAR(::real(output), ::real(gold), 1.0e-3);
ASSERT_NEAR(::imag(output), ::imag(gold), 1.0e-3);
gold = outType(2.5);
outType tmp[] = { outType(0), outType(1), outType(2), outType(3),
outType(4) };
array b(5, tmp);
output = var<outType>(b, false);
ASSERT_NEAR(::real(output), ::real(gold), 1.0e-3);
ASSERT_NEAR(::imag(output), ::imag(gold), 1.0e-3);
gold = outType(2);
output = var<outType>(b, true);
ASSERT_NEAR(::real(output), ::real(gold), 1.0e-3);
ASSERT_NEAR(::imag(output), ::imag(gold), 1.0e-3);
}
TYPED_TEST(Var, AllCPPSmall)
{
testCPPVar<TypeParam>(2, af::dim4(10, 10, 1, 1));
}
TYPED_TEST(Var, AllCPPMedium)
{
testCPPVar<TypeParam>(2, af::dim4(100, 100, 1, 1));
}
TYPED_TEST(Var, AllCPPLarge)
{
testCPPVar<TypeParam>(2, af::dim4(1000, 1000, 1, 1));
}
TYPED_TEST(Var, DimCPPSmall)
{
typedef typename varOutType<TypeParam>::type outType;
if (noDoubleTests<TypeParam>()) return;
if (noDoubleTests<outType>()) return;
vector<af::dim4> numDims;
vector<vector<TypeParam> > in;
vector<vector<outType> > tests;
readTests<TypeParam, outType, double> (TEST_DIR"/var/var.data",numDims,in,tests);
for(size_t i = 0; i < in.size(); i++)
{
array input(numDims[i], &in[i].front(), afHost);
array bout = var(input, false);
array nbout = var(input, true);
array bout1 = var(input, false, 1);
array nbout1 = var(input, true, 1);
vector<vector<outType> > h_out(4);
h_out[0].resize(bout.elements());
h_out[1].resize(nbout.elements());
h_out[2].resize(bout1.elements());
h_out[3].resize(nbout1.elements());
bout.host( &h_out[0].front());
nbout.host( &h_out[1].front());
bout1.host( &h_out[2].front());
nbout1.host(&h_out[3].front());
for(size_t j = 0; j < tests.size(); j++) {
for(size_t jj = 0; jj < tests[j].size(); jj++) {
ASSERT_EQ(h_out[j][jj], tests[j][jj]);
}
}
}
}
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