[PATCH] D38461: [MC] - Don't assert when non-english characters are used.

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

cppreference suggests writing our own wrapper to avoid this issue: http://en.cppreference.com/w/cpp/string/byte/isdigit

I'd suggest adding `llvm::isDigit` and `llvm::isHexDigit` in StringExtras.h next to our other hex digit conversion routines, so we don't have to repeat this surprising cast everywhere.


https://reviews.llvm.org/D38461