[Boost-users] Boost Regex use of &*string.begin()

From: Sudarshan Gaikaiwari (sudarshan_at_[hidden])
Date: 2007-10-18 21:32:16

Hi

The boost regex library makes liberal use of &*string.begin()

For example

----------------------------------------------------------------------------------------
   std::string result(++bytes, '\0');
   bytes = ::LCMapStringW(
      id,       // locale identifier
      LCMAP_SORTKEY,  // mapping transformation type
      p1,  // source string
      static_cast<int>(p2 - p1),        // number of characters in source string
      reinterpret_cast<wchar_t*>(&*result.begin()),  // destination
buffer *of bytes*
      bytes        // size of destination buffer
      );
--------------------------------------------------------------------------------------------------------------------

Is this construct safe? Are its semantics specified by the standard?

regards
Sudarshan

-- 
Sudarshan Gaikaiwari
www.sudarshan.org
sudarshan_at_[hidden]