// Ceres Solver - A fast non-linear least squares minimizer
// Copyright 2018 Google Inc. All rights reserved.
// http://ceres-solver.org/
//
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// modification, are permitted provided that the following conditions are met:
//
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//   this list of conditions and the following disclaimer.
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// Author: jodebo_beck@gmx.de (Johannes Beck)

#include "ceres/internal/integer_sequence.h"

#include <type_traits>

namespace ceres {
namespace internal {

// Unit test for integer_sequence<...>::value_type
static_assert(std::is_same<integer_sequence<unsigned int, 0>::value_type,
                           unsigned int>::value,
              "Unit test of integer sequence value type failed.");

// Unit tests for make_integer_sequence
static_assert(
    std::is_same<make_integer_sequence<int, 0>, integer_sequence<int>>::value,
    "Unit test of make integer sequence failed.");
static_assert(std::is_same<make_integer_sequence<int, 1>,
                           integer_sequence<int, 0>>::value,
              "Unit test of make integer sequence failed.");
static_assert(std::is_same<make_integer_sequence<int, 2>,
                           integer_sequence<int, 0, 1>>::value,
              "Unit test of make integer sequence failed.");
static_assert(std::is_same<make_integer_sequence<int, 3>,
                           integer_sequence<int, 0, 1, 2>>::value,
              "Unit test of make integer sequence failed.");

}  // namespace internal
}  // namespace ceres