If you have used reserve() at the start to ensure there is already enough allocated memory, the size() of the vector will increase when you ... ... <看更多>

Using std::vector::reserve whenever possible. ... Considering we pre-allocate certain amount of memory and vector can grow (or shrink) ... ... <看更多>

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... an std::vector , pybind11 ignores exceptions raised by len(arg) and erroneously calls std::vector ::reserve() with a very large value. ... <看更多>