Re: [Boost-users] assign shared_ptr to 0 in initialization list

13 Aug 2006

      Hi Scott,

Thanks for the quick reply!

On Sun, 2006-08-13 at 18:11 -0400, me22 wrote:
...
Instead of
...
if (writer_.get() == 0) { /* create default error writer */ }
Why not just use
if ( !writer_ ) { /* create default error writer */ }
instead?  This would work with ordinary pointers too.
Thanks, that is clearer!
...
...
What is the equivalent to:
Parser testParser(0);
Parser testParser( ErrorWriterPtr() ); // would work
I'd be tempted instead to replace the constructor definition with
Parser(ErrorWriterPtr writer = ErrorWritePtr())
  : writer_(writer)
  {
  }
however, to be able to just say
Parser testParser;
if you don't want to specify the writer.
Perfect!  Thanks again.

Best,
Scott

Re: [Boost-users] assign shared_ptr to 0 in initialization list

Scott Amort