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Storage Class
Joined: 06 Jan 2005
Posts: 2
Storage Class
HI,
itz about a storage class.as we know that the
storage classes are register,auto,static,extern.
so which of the classes will be given the highest
priority like order of operatores and where they
are
stored (i mean the memory like data segemnt,stack
like friend).
Regards
Sakthivel
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Joined: 07 Jan 2005
Posts: 2
Storage Class
Your first question, priority(precedence) of storage class
specifiers...
There is no question of priority here because u can use only one
such specifier in one declaration. ie, u cannot do anything like,
static register int i; /* this is an error */
And your second question, the storage location...
All auto variables are stored on the stack, more precisely in the
activation record of the function.
All register variables are same as auto, only that it recomends to
the compiler that, if it is possible place the variable in a
register. But it is solely up to the compiler to decide.
All static variable are stored in the initilized data segment of the
program.
Extern variable declaration do not allocate any memory. Hence no
question of storage. But if the extern variable is initilized in the
declaration then, it allocates memory again in the initilized data
segment.
Hope it is clear.
Raghavendra.
--- In Programmers-Town@yahoogroups.com, Sakthivel
Dhanabalakrishnanan <cgroup_sakthi@y...> wrote:
>
> HI,
>
> itz about a storage class.as we know that the
> storage classes are register,auto,static,extern.
>
> so which of the classes will be given the highest
> priority like order of operatores and where they
> are
> stored (i mean the memory like data segemnt,stack
> like friend).
>
> Regards
> Sakthivel
>
>
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
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