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https://gitlab.kitware.com/vtk/vtk-m
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5773ea3e13
Currently, VTK-m is using C++11. However, it is often useful to use features in the `std` namespace that are defined for C++14 or later. We can provide our own versions (sometimes), but it is preferable to use the version provided by the compiler if available. There were already some examples of defining portable versions of C++14 and C++17 classes in a `vtkmstd` namespace, but these were sprinkled around the source code. There is now a top level `vtkmstd` directory and in it are header files that provide portable versions of these future C++ classes. In each case, preprocessor macros are used to select which version of the class to use.
42 lines
1.3 KiB
C++
42 lines
1.3 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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//
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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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#ifndef vtk_m_std_is_trivially_copyable_h
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#define vtk_m_std_is_trivially_copyable_h
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#include <type_traits>
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#if defined(VTKM_USING_GLIBCXX_4)
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namespace vtkmstd
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{
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// GCC 4.8 and 4.9 standard library does not support std::is_trivially_copyable.
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// There is no relyable way to get this information (since it has to come special from
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// the compiler). For our purposes, we will report as nothing being trivially copyable,
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// which causes us to call the constructors with everything. This should be fine unless
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// some other part of the compiler is trying to check for trivial copies (perhaps nvcc
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// on top of GCC 4.8).
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template <typename>
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struct is_trivially_copyable : std::false_type
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{
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};
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} // namespace vtkmstd
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#else // NOT VTKM_USING_GLIBCXX_4
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namespace vtkmstd
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{
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using std::is_trivially_copyable;
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} // namespace vtkmstd
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#endif
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#endif //vtk_m_std_is_trivially_copyable_h
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