diff options
Diffstat (limited to 'extern/libmv/third_party/ceres/internal/ceres/array_utils.cc')
-rw-r--r-- | extern/libmv/third_party/ceres/internal/ceres/array_utils.cc | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/extern/libmv/third_party/ceres/internal/ceres/array_utils.cc b/extern/libmv/third_party/ceres/internal/ceres/array_utils.cc deleted file mode 100644 index 205ddaf27c9..00000000000 --- a/extern/libmv/third_party/ceres/internal/ceres/array_utils.cc +++ /dev/null @@ -1,113 +0,0 @@ -// Ceres Solver - A fast non-linear least squares minimizer -// Copyright 2012 Google Inc. All rights reserved. -// http://code.google.com/p/ceres-solver/ -// -// 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/array_utils.h" - -#include <algorithm> -#include <cmath> -#include <cstddef> -#include <string> -#include <vector> -#include "ceres/fpclassify.h" -#include "ceres/stringprintf.h" - -namespace ceres { -namespace internal { - -// It is a near impossibility that user code generates this exact -// value in normal operation, thus we will use it to fill arrays -// before passing them to user code. If on return an element of the -// array still contains this value, we will assume that the user code -// did not write to that memory location. -const double kImpossibleValue = 1e302; - -bool IsArrayValid(const int size, const double* x) { - if (x != NULL) { - for (int i = 0; i < size; ++i) { - if (!IsFinite(x[i]) || (x[i] == kImpossibleValue)) { - return false; - } - } - } - return true; -} - -int FindInvalidValue(const int size, const double* x) { - if (x == NULL) { - return size; - } - - for (int i = 0; i < size; ++i) { - if (!IsFinite(x[i]) || (x[i] == kImpossibleValue)) { - return i; - } - } - - return size; -}; - -void InvalidateArray(const int size, double* x) { - if (x != NULL) { - for (int i = 0; i < size; ++i) { - x[i] = kImpossibleValue; - } - } -} - -void AppendArrayToString(const int size, const double* x, string* result) { - for (int i = 0; i < size; ++i) { - if (x == NULL) { - StringAppendF(result, "Not Computed "); - } else { - if (x[i] == kImpossibleValue) { - StringAppendF(result, "Uninitialized "); - } else { - StringAppendF(result, "%12g ", x[i]); - } - } - } -} - -void MapValuesToContiguousRange(const int size, int* array) { - std::vector<int> unique_values(array, array + size); - std::sort(unique_values.begin(), unique_values.end()); - unique_values.erase(std::unique(unique_values.begin(), - unique_values.end()), - unique_values.end()); - - for (int i = 0; i < size; ++i) { - array[i] = std::lower_bound(unique_values.begin(), - unique_values.end(), - array[i]) - unique_values.begin(); - } -} - -} // namespace internal -} // namespace ceres |