Re: How to find a STL class size?

From:
 James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Thu, 01 Nov 2007 09:40:55 -0000
Message-ID:
<1193910055.869026.326590@o38g2000hse.googlegroups.com>
On Oct 31, 7:26 pm, "webinfin...@gmail.com" <webinfin...@gmail.com>
wrote:

How to find a STL class size, for example: string. I would like to
know what the size of the implementation of this class, I am not
interested in the size of its object but the class itself. There are
discussion regarding addition of all the data member of the class/
structure to find out its size, but is there a neat way to find out
class' size?


I'm afraid I don't understand the question: formally, only
objects have size, not classes. So do you want to know:

 -- the actual size of the object: sizeof will give you that,
 -- the total memory used by the object: this will depend
    enormously on the implementation, and will probably vary
    from one object to the next, or
 -- the memory used by the class, independently of any
    instances---this is also very, very implementation
    dependent, and may also depend on which functions you use in
    the class.

--
James Kanze (GABI Software) email:james.kanze@gmail.com
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