mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-29 16:40:38 +08:00
Sameer Agarwal
2569076ff0
Fix variable names in port.h and fix fpclassify when using gnustl. This was tested by switching to gnustl in the JNI build. Thanks to Carlos Hernandez for suggesting the gnustl fixes. Change-Id: I690b73caf495ccc79061f45288e416da1604cc72
88 lines
3.4 KiB
C++
88 lines
3.4 KiB
C++
// 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: keir@google.com (Keir Mierle)
|
|
//
|
|
// Portable floating point classification. The names are picked such that they
|
|
// do not collide with macros. For example, "isnan" in C99 is a macro and hence
|
|
// does not respect namespaces.
|
|
//
|
|
// TODO(keir): Finish porting!
|
|
|
|
#ifndef CERES_PUBLIC_FPCLASSIFY_H_
|
|
#define CERES_PUBLIC_FPCLASSIFY_H_
|
|
|
|
#if defined(_MSC_VER)
|
|
#include <float.h>
|
|
#endif
|
|
|
|
#include <limits>
|
|
|
|
namespace ceres {
|
|
|
|
#if defined(_MSC_VER)
|
|
|
|
inline bool IsFinite (double x) { return _finite(x); }
|
|
inline bool IsInfinite(double x) { return !_finite(x) && !_isnan(x); }
|
|
inline bool IsNaN (double x) { return _isnan(x); }
|
|
inline bool IsNormal (double x) {
|
|
int classification = _fpclass(x);
|
|
return classification == _FPCLASS_NN ||
|
|
classification == _FPCLASS_PN;
|
|
}
|
|
|
|
#elif defined(ANDROID) && defined(_STLPORT_VERSION)
|
|
|
|
// On Android, when using the STLPort, the C++ isnan and isnormal functions
|
|
// are defined as macros.
|
|
inline bool IsNaN (double x) { return isnan(x); }
|
|
inline bool IsNormal (double x) { return isnormal(x); }
|
|
// On Android NDK r6, when using STLPort, the isinf and isfinite functions are
|
|
// not available, so reimplement them.
|
|
inline bool IsInfinite(double x) {
|
|
return x == std::numeric_limits<double>::infinity() ||
|
|
x == -std::numeric_limits<double>::infinity();
|
|
}
|
|
inline bool IsFinite(double x) {
|
|
return !isnan(x) && !IsInfinite(x);
|
|
}
|
|
|
|
# else
|
|
|
|
// These definitions are for the normal Unix suspects.
|
|
inline bool IsFinite (double x) { return std::isfinite(x); }
|
|
inline bool IsInfinite(double x) { return std::isinf(x); }
|
|
inline bool IsNaN (double x) { return std::isnan(x); }
|
|
inline bool IsNormal (double x) { return std::isnormal(x); }
|
|
|
|
#endif
|
|
|
|
} // namespace ceres
|
|
|
|
#endif // CERES_PUBLIC_FPCLASSIFY_H_
|