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15 lines
689 B
Markdown
15 lines
689 B
Markdown
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# Porting layer for future std features
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Currently, VTK-m is using C++11. However, it is often useful to use
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features in the `std` namespace that are defined for C++14 or later. We can
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provide our own versions (sometimes), but it is preferable to use the
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version provided by the compiler if available.
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There were already some examples of defining portable versions of C++14 and
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C++17 classes in a `vtkmstd` namespace, but these were sprinkled around the
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source code.
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There is now a top level `vtkmstd` directory and in it are header files
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that provide portable versions of these future C++ classes. In each case,
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preprocessor macros are used to select which version of the class to use.
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