cxx11_tensor_random.cpp File Reference

#include "main.h"
#include <Eigen/CXX11/Tensor>

Classes
struct	MyGenerator

Functions
template<typename Scalar >
static void	test_default ()
template<typename Scalar >
static void	test_normal ()
static void	test_custom ()
	EIGEN_DECLARE_TEST (cxx11_tensor_random)

Function Documentation

EIGEN_DECLARE_TEST()

EIGEN_DECLARE_TEST

(

cxx11_tensor_random

)

                                        {
  CALL_SUBTEST((test_default<float>()));
  CALL_SUBTEST((test_normal<float>()));
  CALL_SUBTEST((test_default<double>()));
  CALL_SUBTEST((test_normal<double>()));
  CALL_SUBTEST((test_default<Eigen::half>()));
  CALL_SUBTEST((test_normal<Eigen::half>()));
  CALL_SUBTEST((test_default<Eigen::bfloat16>()));
  CALL_SUBTEST((test_normal<Eigen::bfloat16>()));
  CALL_SUBTEST(test_custom());
}

References CALL_SUBTEST, and test_custom().

test_custom()

static void test_custom ( )

static

                          {
  Tensor<int, 1> vec(6);
  vec.setRandom<MyGenerator>();
 
  for (int i = 0; i < 6; ++i) {
    VERIFY_IS_EQUAL(vec(i), 3 * i);
  }
}

References i, Eigen::TensorBase< Derived, AccessLevel >::setRandom(), and VERIFY_IS_EQUAL.

Referenced by EIGEN_DECLARE_TEST().

test_default()

template<typename Scalar >

static void test_default ( )

static

                           {
  Tensor<Scalar, 1> vec(6);
  vec.setRandom();
 
  // Fixme: we should check that the generated numbers follow a uniform
  // distribution instead.
  for (int i = 1; i < 6; ++i) {
    VERIFY_IS_NOT_EQUAL(vec(i), vec(i - 1));
  }
}

References i, Eigen::TensorBase< Derived, AccessLevel >::setRandom(), and VERIFY_IS_NOT_EQUAL.

test_normal()

template<typename Scalar >

static void test_normal ( )

static

                          {
  Tensor<Scalar, 1> vec(6);
  vec.template setRandom<Eigen::internal::NormalRandomGenerator<Scalar>>();
 
  // Fixme: we should check that the generated numbers follow a gaussian
  // distribution instead.
  for (int i = 1; i < 6; ++i) {
    VERIFY_IS_NOT_EQUAL(vec(i), vec(i - 1));
  }
}

References i, and VERIFY_IS_NOT_EQUAL.