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C++如何在编译期 同一constexpr函数返回递增值？
source link: https://www.zhihu.com/question/432305232/answer/1599864864
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C++如何在编译期 同一constexpr函数返回递增值？
想为一些类分配独立的id，运行期分配倒是很容易，一个函数返回++i就行了，但是这工作能在编译期完成吗？ 起因主要是想实现类似java的.class功能…
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