________________________________ From: Adrián Chaves Fernández (Gallaecio) To: boost-users@lists.boost.org Sent: Tuesday, May 15, 2012 5:28 PM Subject: [Boost-users] Why does boost::locale::generator fail for some locale codes?

I am using boost::locale::generator with its default backend (ICU I assume)

ICU us default if Boost.Locale is compiled with ICU support.

when I pass certain locale codes to the generator, it fails and the application execution is interrupted with the following output messages:

  terminate called after throwing an instance of 'boost::locale::conv::conversion_error' what():  Conversion failed Abortado   I have tested the following values:   * gl —  FAILS * gl_ES —  FAILS * gl_ES.utf8 —  Works * en —  Works * en_US —  Works * en_US.utf8 —  Works

See: http://www.boost.org/doc/libs/1_49_0/libs/locale/doc/html/index.html In generally the locale should consist of LANGUAGE_TERRITORY.ENCODING So proper locale names are gl_ES.utf8 and en_US.utf8 Note, if encoding is not given US-ASCII is assumed... and so conversions of any non-ASCII characters like dictionaries during load would fail.

  Installed locales should not be the issue:   [user@localhost build]$ locale -a C en_US en_US.iso88591 en_US.utf8 galego galician gl_ES gl_ES@euro gl_ES.iso88591 gl_ES.iso885915@euro gl_ES.utf8 POSIX  

ICU does not use system installed locales rather its own locale DB.   Artyom Beilis -------------- CppCMS - C++ Web Framework:   http://cppcms.com/ CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/