Re: [Boost-users] shared_ptr Initial Assignment

From: Lex Fridman (lexfridman_at_[hidden])
Date: 2008-04-24 22:24:42

Hi Richard,

That was foolish of me to think that bla will point to fooInstance. 
Obviously it will point to a copy of Foo instance. Thanks for that note.

However, you also mentioned that the two options are different:
(1) shared_ptr<Foo> bla(new Foo(fooInstance));

(2) 
shared_ptr<Foo> bla;
bla = shared_ptr<Foo>(new Foo(fooInstance));

You mentioned that the second will create a temporary that will "go 
away". Can you elaborate on that. It seems to me that it shouldn't go 
away, as long as bla is within scope. I guess that was my main question 
originally, whether the second option is a correct way to set bla (when, 
say, it's a class member).

Many thanks!
Lex