Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of Boost. Click here to view this page for the latest version.


namespace boost{

template <class charT, class implementationT = sensible_default_choice>
struct regex_traits : public implementationT
   regex_traits() : implementationT() {}

template <class charT>
struct c_regex_traits;

template <class charT>
class cpp_regex_traits;

template <class charT>
class w32_regex_traits;

} // namespace boost

The class regex_traits is just a thin wrapper around an actual implementation class, which may be one of:

The default behavior can be altered by defining one of the following configuration macros in boost/regex/user.hpp

All these traits classes fulfil the traits class requirements.