Matwey V. Kornilov wrote:

Hi,

validation_error constructor signature was changed from

validation_error(const std::string &);

in boost 1.41.0

to

validation_error(kind_t, const std::string & = "", const std::string & = "");

in boost 1.42.0+

This way validation_error is backward-incompatible and "Custom Validators" (http://www.boost.org/doc/libs/1_43_0/doc/html/program_options/howto.html#id1...) section in html-documentations has an wrong example that uses 'validation_error(const std::string &)' signature.

Could you file a bug at http://svn.boost.org please? - Volodya