[boost] MSVC 7.1 warnings for lexical_cast.hpp

From: Jurko Gospodnetiæ (jurko_for_boost_at_[hidden])
Date: 2005-08-18 11:40:18

  Hi all.

  I was wandering if someone could disable the following
warnings for the lexical_cast.hpp file when compiled with
the MSVC 7.1 compiler:
        * 4511 - Copy constructor shall not be generated.
        * 4512 - Assignment operator could not be generated.
        * 4127 - Conditional expression is constant.

  They are reported at high warning reporting levels and
easy to work around by preparing my own wrapper
header that disables them but I would really like it if
boost could do this out-of-the-box.

  Best regards,
    Jurko Gospodnetiæ