how to set locale with C++

[marco atzeri <marco dot atzeri at gmail dot com>]

Attached a small example taken from Bruce Eckel Thinking in C++

On cygwin both this call

  cout.imbue(locale("en_US.UTF-8"));

  cout.imbue(locale("fr_FR.UTF-8"));

raise exception

"terminate called after throwing an instance of 'std::runtime_error'
  what():  locale::facet::_S_create_c_locale name not valid
Aborted (core dumped)"

I could understand eventually the second one, but "English (US)" is the 
current windows locale so I expected that at least "en_US.UTF-8" is 
accepted.

What I am missing ?

Regards
Marco

Attachment: Locale.cpp
Description: Text document

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