[Bug libstdc++/58628] Incorrect std::isalpha results with UTF-8 locale on illumos

[alp at rsu dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58628

--- Comment #1 from Alexander Pyhalov <alp at rsu dot ru> ---
Created attachment 30958
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30958&action=edit
ctype test