> They had discovered that you could clear a string under MSVC by `memset()`ing ... | Hacker News

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		rewmie on Sept 9, 2023 \| parent \| context \| favorite \| on: Just how constexpr is C++20’s std:string? > They had discovered that you could clear a string under MSVC by `memset()`ing over it. Why was that? Was it too problematic to just call std::string::clear ?

phire on Sept 9, 2023 [–]

I'm guessing the string was part of a larger struct, and they wanted to clear the entire struct with a single memset.

It's a somewhat common pattern in C, but requires care.

rewmie on Sept 9, 2023 | [–]

> It's a somewhat common pattern in C (...)

C++ isn't C, though.

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