Fix (potentially) undefined behaviour with std::transform and tolower/toupper #2795
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Chaosvex
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🍰 Pull request
Fixes two potential problems with using tolower/toupper with std::transform. The first being that the argument should be converted explicitly to an unsigned char when used with iterators of type char (std::string) and second being non-addressable functions shouldn't be passed to the standard algorithms (applies to std::*).
Proof
Issues
How2Test
Todo / Checklist