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https://gitlab.kitware.com/vtk/vtk-m
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860649acf6
If Error.h was loaded before windows.h on windows compilers, then it happily defined GetMessage and then GetMessageA and GetMessageB. However, if the load order was reversed, then GetMessage is a macro that changes it to GetMessageA or GetMessageB and you get an error about the same method being declared twice. Get around the problem by not defining GetMessage if it is already declared as a macro.
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 Sandia Corporation.
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_cont_Error_h
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#define vtk_m_cont_Error_h
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// Note that this class and (most likely) all of its subclasses are not
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// templated. If there is any reason to create a VTKm control library,
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// this class and its subclasses should probably go there.
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#include <string>
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namespace vtkm {
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namespace cont {
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/// The superclass of all exceptions thrown by any VTKm function or method.
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///
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class Error
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{
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public:
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//See note about GetMessage macro below.
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#ifndef GetMessage
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const std::string &GetMessage() const { return this->Message; }
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#endif
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//GetMessage is a macro defined by <windows.h> to redirrect to
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//GetMessageA or W depending on if you are using ansi or unicode.
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//To get around this we make our own A/W variants on windows.
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#ifdef _WIN32
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const std::string &GetMessageA() const { return this->Message; }
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const std::string &GetMessageW() const { return this->Message; }
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#endif
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protected:
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Error() { }
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Error(const std::string message) : Message(message) { }
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void SetMessage(const std::string &message)
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{
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this->Message = message;
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}
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private:
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std::string Message;
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};
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}
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} // namespace vtkm::cont
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#endif //vtk_m_cont_Error_h
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