Re: [Boost-users] [bind] Surprising behavior

From: Peter Dimov (pdimov_at_[hidden])
Date: 2007-04-16 16:10:19

Christian Henning wrote:

>   for_each( as.begin()
>           , as.end()
>           , bind( &print
>                 , bind( &std::string::c_str
>                       , bind( &A::name, _1 ))));

The problem here is that A::name returns a temporary std::string; the code 
is similar to

    char const * s = it->name().c_str();
    print( s );

Since the temporary std::string is destroyed, s remains dangling. One way of 
avoiding the problem is to make print() take a std::string instead of a 
char*.