mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-30 17:10:38 +08:00
Keir Mierle
d16c34fb4a
This is a workaround for anyone building Ceres in an environment where there is a non-standard string implementation in the global namespace. Due to the way the standard is written, a "using namespace X" import is not high enough precedence to resolve a naked reference to "string". Instead, by explicitly importing string, the lookup becomes unambiguous. Change-Id: I8d70463de01c482796c5bc09da05b37d21e7af96
51 lines
2.3 KiB
C++
51 lines
2.3 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2010, 2011, 2012 Google Inc. All rights reserved.
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// http://code.google.com/p/ceres-solver/
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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: keir@google.com (Keir Mierle)
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#ifndef CERES_PUBLIC_INTERNAL_PORT_H_
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#define CERES_PUBLIC_INTERNAL_PORT_H_
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#include <string>
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namespace ceres {
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// It is unfortunate that this import of the entire standard namespace is
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// necessary. The reasons are historical and won't be explained here, but
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// suffice to say it is not a mistake and can't be removed without breaking
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// things outside of the Ceres optimization package.
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using namespace std;
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// This is necessary to properly handle the case that there is a different
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// "string" implementation in the global namespace.
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using std::string;
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} // namespace ceres
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#endif // CERES_PUBLIC_INTERNAL_PORT_H_
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