diff options
author | Sergey Sharybin <sergey.vfx@gmail.com> | 2020-06-18 11:12:01 +0300 |
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committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2020-06-19 13:02:21 +0300 |
commit | 31ae83381106a7aaee5303710b818c13f42ceddc (patch) | |
tree | 6935ebe7e84db7e54c689ea3308fb6df67e03d73 /extern/ceres/internal/ceres/function_sample.cc | |
parent | 171c4fb238a2a65291540ac5406187bc69f3a6bc (diff) |
Ceres: Update to the latest upstream version
Using latest master because of various compilation error fixes.
Brings a lot of recent development. From most interesting parts:
- New threading model.
- Tiny solver.
- Compatibility with C++17.
Diffstat (limited to 'extern/ceres/internal/ceres/function_sample.cc')
-rw-r--r-- | extern/ceres/internal/ceres/function_sample.cc | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/extern/ceres/internal/ceres/function_sample.cc b/extern/ceres/internal/ceres/function_sample.cc new file mode 100644 index 00000000000..2fd3dbdf7c5 --- /dev/null +++ b/extern/ceres/internal/ceres/function_sample.cc @@ -0,0 +1,73 @@ +// Ceres Solver - A fast non-linear least squares minimizer +// Copyright 2015 Google Inc. All rights reserved. +// http://ceres-solver.org/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// * Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// * Neither the name of Google Inc. nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE +// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +// Author: sameeragarwal@google.com (Sameer Agarwal) + +#include "ceres/function_sample.h" +#include "ceres/stringprintf.h" + +namespace ceres { +namespace internal { + +FunctionSample::FunctionSample() + : x(0.0), + vector_x_is_valid(false), + value(0.0), + value_is_valid(false), + vector_gradient_is_valid(false), + gradient(0.0), + gradient_is_valid(false) {} + +FunctionSample::FunctionSample(const double x, const double value) + : x(x), + vector_x_is_valid(false), + value(value), + value_is_valid(true), + vector_gradient_is_valid(false), + gradient(0.0), + gradient_is_valid(false) {} + +FunctionSample::FunctionSample(const double x, + const double value, + const double gradient) + : x(x), + vector_x_is_valid(false), + value(value), + value_is_valid(true), + vector_gradient_is_valid(false), + gradient(gradient), + gradient_is_valid(true) {} + +std::string FunctionSample::ToDebugString() const { + return StringPrintf("[x: %.8e, value: %.8e, gradient: %.8e, " + "value_is_valid: %d, gradient_is_valid: %d]", + x, value, gradient, value_is_valid, gradient_is_valid); +} + +} // namespace internal +} // namespace ceres |