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A comment on Git's list of banned C functions. Parent comment

Re:Git's list of banned C functions by JoeAltmaier on Saturday March 06, 2021 @06:35PM (#26371558)
Do they manage alignment? Say a source string starting at offset 3 inside a dword, to a destination at offset 1? That's the issue. Not just block copy of align register-sized memory.

Page fault is irrelevant. It already can happen in block copy instructions.

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Re:Git's list of banned C functions by renox on Sunday March 07, 2021 @03:12AM (#26374176)
No, they don't provide alignment but they provide a way to write code once whatever the size of the implementation's vector registers.

As for block copy instruction AFAIK there's no such things in RISC-V for example.

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Re:Git's list of banned C functions by JoeAltmaier on Sunday March 07, 2021 @04:14PM (#26379829)
So, no, they don't have anything like an arbitrary block copy that adjusts for alignment. Not surprising; nobody does. So we struggle in software, and have libraries with 11 bugs etc.
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