Haskell的`Data.Vector.Mutable.unsafeNew`是否将内存归零？
[英]Does Haskell's `Data.Vector.Mutable.unsafeNew` zero the memory?
问题描述
The docs says that new "creates a mutable vector of the given length" and unsafeNew "creates a mutable vector of the given length. The length is not checked." 
文档说new “创建给定长度的可变向量”和unsafeNew “创建给定长度的可变向量。不检查长度。”
However this resolved github issue indicates that unsafeNew does not zero the memory while new does. 但是， 这个解决的github问题表明unsafeNew不会将内存归零，而new unsafeNew 。
Which one is it? 哪一个？
1 个解决方案
解决方案1
3 已采纳 2015-10-02 23:54:30
No, not in general. 不，不是一般的。 If you click through the source this is pretty clear: 如果你点击源代码，这很清楚：
https://hackage.haskell.org/package/vector-0.11.0.0/docs/src/Data-Vector-Generic-Mutable.html#new https://hackage.haskell.org/package/vector-0.11.0.0/docs/src/Data-Vector-Generic-Mutable.html#new
new is unsafeNew with the addition of basicInitialize . new是unsafeNew的新增了basicInitialize 。
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