https://llvm.org/bugs/show_bug.cgi?id=30302
Bug ID: 30302
Summary: numpunt_byname and moneypunct_byname cannot represent
multibyte decimal_point or thousands_sep.
Product: libc++
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: e...@efcs.ca
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Classification: Unclassified
The virtual functions they use to return the separators only return a single
character. If the requested locale uses multibyte separators then these facets
have no way to represent those. For example ru_RU.UTF-8 uses \u00A0 as the
thousands_sep on glibc. Unfortunatly libc++ can only return the first byte of
that when the underlying char_type is 'char'. The first byte is 0xC2 which ends
up creating an invalid utf-8 string.
This probably requires a LWG issue and a fix in the standard.
See also: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16006
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