optimizestatic const，more cplusplus and complire detect error #452
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chenshuo
reviewed
Apr 22, 2020
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constexpr variable is guaranteed to have a value available at compile time. whereas static const members or const variable could either mean a compile time value or a runtime value. Typing constexpr express your intent of a compile time value in a much more explicit way than const. One more thing, in C++17, constexpr static data member variables will be inline too. That means you can omit the out of line definition of static constexpr variables, but not static const. |
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constexpr is more c++ |
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