namespace
boost
{
class
exception
{
protected:
exception();
exception( exception const & x );
~exception();
};
template <class Tag,class T>
class error_info;
typedef error_info<struct tag_throw_function,char const *> throw_function;
typedef error_info<struct tag_throw_file,char const *> throw_file;
typedef error_info<struct tag_throw_line,int> throw_line;
template <class T>
---unspecified--- enable_error_info( T const & x );
template <class T>
---unspecified--- enable_current_exception( T const & e );
}