mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-29 16:40:38 +08:00
Sameer Agarwal
0a53aa9054
1. Add abseil-cpp as a submodule. We are tracking the latest LTS release, which is lts_2024_01_16. 2. Replace glog/gflags with absl::log and absl::flags. 3. Remove miniglog 4. Also take a whack at making the bazel build work with abseil-cpp and gtest. There are a number of TODOs in this CL that still need to be resolved. Change-Id: I39355ed7d61375be4ebcbc8596d9cc70acc1c678
58 lines
2.4 KiB
C++
58 lines
2.4 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2023 Google Inc. All rights reserved.
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// http://ceres-solver.org/
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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: wjr@google.com (William Rucklidge)
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#include "ceres/parallel_utils.h"
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#include "ceres/internal/config.h"
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#include "gtest/gtest.h"
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namespace ceres::internal {
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// Tests that unfolding linear iterations to triangular iterations produces
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// indices that are in-range and unique.
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TEST(LinearIndexToUpperTriangularIndexTest, UniqueAndValid) {
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for (int n = 0; n < 100; n++) {
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std::set<std::pair<int, int>> seen_pairs;
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int actual_work_items = (n * (n + 1)) / 2;
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for (int k = 0; k < actual_work_items; k++) {
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int i, j;
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LinearIndexToUpperTriangularIndex(k, n, &i, &j);
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EXPECT_GE(i, 0);
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EXPECT_LT(i, n);
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EXPECT_GE(j, i);
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EXPECT_LT(j, n);
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seen_pairs.insert(std::make_pair(i, j));
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}
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EXPECT_EQ(actual_work_items, seen_pairs.size());
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}
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}
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} // namespace ceres::internal
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