#pragma once

#include <thrust/detail/type_traits.h>
#include <thrust/extrema.h>

#include <iostream>
#include <string>
#include <typeinfo>

#include <unittest/system.h>

namespace unittest
{
template <typename T>
std::string type_name()
{
  return demangle(typeid(T).name());
} // end type_name()

// Use this with counting_iterator to avoid generating a range larger than we
// can represent.
template <typename T>
typename THRUST_NS_QUALIFIER::detail::disable_if<::cuda::std::is_floating_point<T>::value, T>::type
truncate_to_max_representable(std::size_t n)
{
  return static_cast<T>(
    THRUST_NS_QUALIFIER::min<std::size_t>(n, static_cast<std::size_t>(::cuda::std::numeric_limits<T>::max())));
}

// TODO: This probably won't work for `half`.
template <typename T>
typename ::cuda::std::enable_if_t<::cuda::std::is_floating_point<T>::value, T>
truncate_to_max_representable(std::size_t n)
{
  return THRUST_NS_QUALIFIER::min<T>(static_cast<T>(n), ::cuda::std::numeric_limits<T>::max());
}
} // namespace unittest

template <typename Iterator>
void PRINT(Iterator first, Iterator last)
{
  size_t n = 0;
  for (Iterator i = first; i != last; i++, n++)
  {
    std::cout << ">>> [" << n << "] = " << *i << '\n';
  }
}

template <typename Container>
void PRINT(const Container& c)
{
  PRINT(c.begin(), c.end());
}

template <size_t N>
void PRINT(const char (&c)[N])
{
  std::cout << std::string(c, c + N) << '\n';
}