Subject: Re: [boost] [config] Macro for null pointer
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2012-12-04 22:16:32
On December 5, 2012 12:19:36 AM Eric Niebler <eric_at_[hidden]> wrote:
> On 12/4/2012 12:05 PM, Edward Diener wrote:
> >
> > Expecting an end-user to both include the Boost header file and then
> > somehow know or care whether or not his compiler supports 'nullptr' and
> > do something more when it does not before he can use 'nullptr' in his
> > code, seems to me to defeat the purpose of providing a nullptr emulation.
>
>
> ... until some other library ALSO defines a global nullptr symbol,
> making that library and boost mutually incompatible.
The global nullptr in the Boost header is going to be conditional on a
config macro. You just disable it in this (rare) case and the problem
is solved.