internal/ceres/file.h

// 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.
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//   used to endorse or promote products derived from this software without
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//
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// Author: keir@google.com (Keir Mierle)
//
// Simple file IO support. This is a portability shim.

#ifndef CERES_INTERNAL_FILE_H_
#define CERES_INTERNAL_FILE_H_

#include <string>

#include "ceres/internal/port.h"

namespace ceres {
namespace internal {

void WriteStringToFileOrDie(const std::string& data,
                            const std::string& filename);
void ReadFileToStringOrDie(const std::string& filename, std::string* data);

// Join two path components, adding a slash if necessary.  If basename is an
// absolute path then JoinPath ignores dirname and simply returns basename.
CERES_EXPORT_INTERNAL std::string JoinPath(const std::string& dirname,
                                           const std::string& basename);

}  // namespace internal
}  // namespace ceres

#endif  // CERES_INTERNAL_FILE_H_