1// Ceres Solver - A fast non-linear least squares minimizer
2// Copyright 2012 Google Inc. All rights reserved.
3// http://code.google.com/p/ceres-solver/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are met:
7//
8// * Redistributions of source code must retain the above copyright notice,
9//   this list of conditions and the following disclaimer.
10// * Redistributions in binary form must reproduce the above copyright notice,
11//   this list of conditions and the following disclaimer in the documentation
12//   and/or other materials provided with the distribution.
13// * Neither the name of Google Inc. nor the names of its contributors may be
14//   used to endorse or promote products derived from this software without
15//   specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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20// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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28//
29// Author: sameeragarwal@google.com (Sameer Agarwal)
30
31#include "ceres/array_utils.h"
32
33#include <limits>
34#include <cmath>
35#include "gtest/gtest.h"
36
37namespace ceres {
38namespace internal {
39
40TEST(ArrayUtils, IsArrayValid) {
41  double x[3];
42  x[0] = 0.0;
43  x[1] = 1.0;
44  x[2] = 2.0;
45  EXPECT_TRUE(IsArrayValid(3, x));
46  x[1] = std::numeric_limits<double>::infinity();
47  EXPECT_FALSE(IsArrayValid(3, x));
48  x[1] = std::numeric_limits<double>::quiet_NaN();
49  EXPECT_FALSE(IsArrayValid(3, x));
50  x[1] = std::numeric_limits<double>::signaling_NaN();
51  EXPECT_FALSE(IsArrayValid(3, x));
52  EXPECT_TRUE(IsArrayValid(1, NULL));
53  InvalidateArray(3, x);
54  EXPECT_FALSE(IsArrayValid(3, x));
55}
56
57}  // namespace internal
58}  // namespace ceres
59