Re: STL container and stack frame size

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From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c++
Subject	Re: STL container and stack frame size
Date	Tue, 09 Aug 2011 16:49:07 +1200
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On 08/ 9/11 04:42 PM, ittium wrote:
> On 04-08-2011 PM 07:51, Juha Nieminen wrote:
>> itt ium<ittium@gmail.com>   wrote:
>>> if the vector is of big size, making a local variable will occupy lot
>>> of stack space and may result in stack overflow.
>>
>>     Nope. There's a very simple way of seeing how much stack space an
>> object takes, namely:
>>
>> void foo()
>> {
>>       std::vector<int>   v(10000);
>>       std::cout<<   "v is taking"<<   sizeof(v)<<   " bytes of stack space.\n";
>> }
>>
>>     Here it says "v is taking 12 bytes of stack space."
>>
>>     The rest is allocated on the heap.
>
> This means, we really do not have any situation, where we should define
> STL containers with pointers. Container with normal variables are
> sufficient for most of the cases.

Except where the object is "large", dynamically allocated, isn't 
copyable or you don't want to copy it...

-- 
Ian Collins

Thread

STL container and stack frame size itt ium <ittium@gmail.com> - 2011-08-04 03:13 -0700
  Re: STL container and stack frame size "Alf P. Steinbach" <alf.p.steinbach:usenet@gmail.com> - 2011-08-04 12:19 +0200
  Re: STL container and stack frame size "Paul" <pchristor@yahoo.co.uk> - 2011-08-04 13:14 +0100
    Re: STL container and stack frame size "Paul" <pchristor@yahoo.co.uk> - 2011-08-05 21:34 +0100
  Re: STL container and stack frame size Juha Nieminen <nospam@thanks.invalid> - 2011-08-04 14:21 +0000
    Re: STL container and stack frame size ittium <ittium@gmail.com> - 2011-08-09 10:12 +0530
      Re: STL container and stack frame size Ian Collins <ian-news@hotmail.com> - 2011-08-09 16:49 +1200
      Re: STL container and stack frame size Asger-P <junk@asger-p.dk> - 2011-08-09 09:25 +0200

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