71 lines
3 KiB
C++
71 lines
3 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2010, 2011, 2012 Google Inc. All rights reserved.
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// http://code.google.com/p/ceres-solver/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: keir@google.com (Keir Mierle)
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#include <string>
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#include "ceres/internal/port.h"
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#ifndef CERES_INTERNAL_TEST_UTIL_H_
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#define CERES_INTERNAL_TEST_UTIL_H_
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namespace ceres {
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namespace internal {
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// Expects that x and y have a relative difference of no more than
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// max_abs_relative_difference. If either x or y is zero, then the relative
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// difference is interpreted as an absolute difference.
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bool ExpectClose(double x, double y, double max_abs_relative_difference);
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// Expects that for all i = 1,.., n - 1
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//
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// |p[i] - q[i]| / max(|p[i]|, |q[i]|) < tolerance
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void ExpectArraysClose(int n,
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const double* p,
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const double* q,
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double tolerance);
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// Expects that for all i = 1,.., n - 1
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//
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// |p[i] / max_norm_p - q[i] / max_norm_q| < tolerance
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//
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// where max_norm_p and max_norm_q are the max norms of the arrays p
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// and q respectively.
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void ExpectArraysCloseUptoScale(int n,
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const double* p,
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const double* q,
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double tolerance);
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// Construct a fully qualified path for the test file depending on the
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// local build/testing environment.
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string TestFileAbsolutePath(const string& filename);
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} // namespace internal
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} // namespace ceres
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#endif // CERES_INTERNAL_TEST_UTIL_H_
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