labath wrote:
Okay, I see what's happening. The libstdc++ implementaiton of any_of boils down
to something like `{ return __last == _GLIBCXX_STD_A::find_if(__first, __last,
__pred); }`, which means there's always an iterator comparison at the end.
libc++ implements it via a loop, which means it bails out as soon as the
predicate returns true (no iterator comparisons).
The libstdc++ behavior is a bit unfortunate, but they are probably within their
rights to do it this way (I don't want to dive into the standard right now to
confirm that).
LGTM, just add a short sentence about why we're making the local copy.
https://github.com/llvm/llvm-project/pull/219752
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