Can a class with out any instances present have it static members
updated.
If yes, on which object does the update happen.
-Parag
5  1491 
On 2007-12-18 15:00:56 -0500, "pa********@hot mail.com"
<pa********@hot mail.comsaid:
Can a class with out any instances present have it static members
updated.
Yes.
>
If yes, on which object does the update happen.
None. Static member variables belong to the class, not to any object.
--
-kira
On Dec 19, 1:00 am, "parag_p...@hot mail.com" <parag_p...@hot mail.com>
wrote:
Can a class with out any instances present have it static members
updated.
If yes, on which object does the update happen.
-Parag
But yes one needs to make sure that they are initialized once before
any usage.
The initialization makes sure that the memory is allocated for the
static member variables.
Any usage of static member variables without initialization could
cause unresolved external symbol linker error...
On Dec 19, 4:45 am, Rahul <sam_...@yahoo. co.inwrote:
On Dec 19, 1:00 am, "parag_p...@hot mail.com"
<parag_p...@hot mail.comwrote:
Can a class with out any instances present have it static
members updated.
If yes, on which object does the update happen.
But yes one needs to make sure that they are initialized once
before any usage.
That's true for most variables, but not for static POD types,
which are automatically zero initialized before any code is run.
The initialization makes sure that the memory is allocated for
the static member variables.
The initialization of a static variable has nothing to do with
memory allocation.
Any usage of static member variables without initialization
could cause unresolved external symbol linker error...
You'll likely get an unresolved external symbol error from the
linker if you fail to define the symbol, but the linker doesn't
care in the least about initialization.
--
James Kanze (GABI Software) email:ja******* **@gmail.com
Conseils en informatique orientée objet/
Beratung in objektorientier ter Datenverarbeitu ng
9 place Sémard, 78210 St.-Cyr-l'École, France, +33 (0)1 30 23 00 34
On Dec 19, 3:00 pm, James Kanze <james.ka...@gm ail.comwrote:
On Dec 19, 4:45 am, Rahul <sam_...@yahoo. co.inwrote:
On Dec 19, 1:00 am, "parag_p...@hot mail.com"
<parag_p...@hot mail.comwrote:
Can a class with out any instances present have it static
members updated.
If yes, on which object does the update happen.
But yes one needs to make sure that they are initialized once
before any usage.
That's true for most variables, but not for static POD types,
which are automatically zero initialized before any code is run.
The initialization makes sure that the memory is allocated for
the static member variables.
The initialization of a static variable has nothing to do with
memory allocation.
What is the initialization meant for?
>
Any usage of static member variables without initialization
could cause unresolved external symbol linker error...
You'll likely get an unresolved external symbol error from the
linker if you fail to define the symbol, but the linker doesn't
care in the least about initialization.
--
James Kanze (GABI Software) email:james.ka. ..@gmail.com
Conseils en informatique orientée objet/
Beratung in objektorientier ter Datenverarbeitu ng
9 place Sémard, 78210 St.-Cyr-l'École, France, +33 (0)1 30 23 00 34
Rahul wrote:
On Dec 19, 3:00 pm, James Kanze <james.ka...@gm ail.comwrote:
>On Dec 19, 4:45 am, Rahul <sam_...@yahoo. co.inwrote:
>>On Dec 19, 1:00 am, "parag_p...@hot mail.com"
<parag_p...@h otmail.comwrote :
Can a class with out any instances present have it static
members updated.
If yes, on which object does the update happen.
But yes one needs to make sure that they are initialized once
before any usage.
That's true for most variables, but not for static POD types,
which are automatically zero initialized before any code is run.
>>The initialization makes sure that the memory is allocated for
the static member variables.
The initialization of a static variable has nothing to do with
memory allocation.
What is the initialization meant for?
To initialise the state of the variable, just like any other. Leaving a
static member uninitialised doesn't mean it's not there.
--
Ian Collins. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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