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Summary: The underlying C locales provide the `thousands_sep` and `decimal_point` as strings, possible with more than one character. We currently don't handle this case even for `wchar_t`. This patch properly converts the mbs -> wide character for `moneypunct_byname<wchar_t>`. For the `moneypunct_byname<char>` case we attempt to narrow the WC and if that fails we also attempt to translate it to some reasonable value. For example we translate U00A0 (non-breaking space) into U0020 (regular space). If none of these conversions succeed then we simply allow the base class to provide a fallback value. Reviewers: mclow.lists, EricWF Subscribers: vangyzen, george.burgess.iv, cfe-commits Differential Revision: https://reviews.llvm.org/D24218 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@289347 91177308-0d34-0410-b5e6-96231b3b80d8