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by holy_city
2444 days ago
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I wouldn't say std::mem::drop acts like free at all, it's the equivalent of a destructor in C++. Mostly useful when you're dealing with manually allocated memory, FFI, implementing an RAII pattern, etc. One cool thing about Drop (and some other cool stuff, like MaybeUninit) is that it makes doing things like allocating/freeing in place just like any other Rust code. There may be some unsafe involved, but the syntax is consistent. Whereas in C++ seeing placement new and manually called destructors can raise eyebrows. |
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