mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-29 08:34:37 +08:00
Sergey Sharybin
b53c9667f5
In some cases there were missing includes of own header files from implementation files. In other cases moved function which are only used within single file into an anonymous namespace. Change-Id: I2c6b411bcfbc521e2a5f21265dc8e009a548b1c8
96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
|
|
// Copyright 2010, 2011, 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: keir@google.com (Keir Mierle)
|
|
//
|
|
// Really simple file IO.
|
|
|
|
#include "ceres/file.h"
|
|
|
|
#include <cstdio>
|
|
#include "glog/logging.h"
|
|
|
|
namespace ceres {
|
|
namespace internal {
|
|
|
|
using std::string;
|
|
|
|
void WriteStringToFileOrDie(const string &data, const string &filename) {
|
|
FILE* file_descriptor = fopen(filename.c_str(), "wb");
|
|
if (!file_descriptor) {
|
|
LOG(FATAL) << "Couldn't write to file: " << filename;
|
|
}
|
|
fwrite(data.c_str(), 1, data.size(), file_descriptor);
|
|
fclose(file_descriptor);
|
|
}
|
|
|
|
void ReadFileToStringOrDie(const string &filename, string *data) {
|
|
FILE* file_descriptor = fopen(filename.c_str(), "r");
|
|
|
|
if (!file_descriptor) {
|
|
LOG(FATAL) << "Couldn't read file: " << filename;
|
|
}
|
|
|
|
// Resize the input buffer appropriately.
|
|
fseek(file_descriptor, 0L, SEEK_END);
|
|
int num_bytes = ftell(file_descriptor);
|
|
data->resize(num_bytes);
|
|
|
|
// Read the data.
|
|
fseek(file_descriptor, 0L, SEEK_SET);
|
|
int num_read = fread(&((*data)[0]),
|
|
sizeof((*data)[0]),
|
|
num_bytes,
|
|
file_descriptor);
|
|
if (num_read != num_bytes) {
|
|
LOG(FATAL) << "Couldn't read all of " << filename
|
|
<< "expected bytes: " << num_bytes * sizeof((*data)[0])
|
|
<< "actual bytes: " << num_read;
|
|
}
|
|
fclose(file_descriptor);
|
|
}
|
|
|
|
string JoinPath(const string& dirname, const string& basename) {
|
|
#ifdef _WIN32
|
|
static const char separator = '\\';
|
|
#else
|
|
static const char separator = '/';
|
|
#endif // _WIN32
|
|
|
|
if ((!basename.empty() && basename[0] == separator) || dirname.empty()) {
|
|
return basename;
|
|
} else if (dirname[dirname.size() - 1] == separator) {
|
|
return dirname + basename;
|
|
} else {
|
|
return dirname + string(&separator, 1) + basename;
|
|
}
|
|
}
|
|
|
|
} // namespace internal
|
|
} // namespace ceres
|