Re: A simple query about memory mgmt

Rene Herman <rene.herman@xxxxxxxxxxxx> · Wed, 13 Aug 2008 08:10:23 +0200

On 13-08-08 07:53, Manish Katiyar wrote:

On Wed, Aug 13, 2008 at 11:21 AM, Johannes Weiner <hannes@xxxxxxxxxxxx> wrote:

"Manish Katiyar" <mkatiyar@xxxxxxxxx> writes:

On Wed, Aug 13, 2008 at 10:07 AM, Rene Herman <rene.herman@xxxxxxxxxxxx> wrote:

int main()
{
   char *p_name = "santosh";
   char *q_name = "santosh";

It is unspecified whether or not the compiler will allocate one or two
copies of the character sequence "santosh" and therefore whether or not
p_name != q_name;

Refer to below link ...... first bullet clearly says that gcc will
store only one copy if strings are identical.

http://gcc.gnu.org/onlinedocs/gcc-3.4.6/gcc/Incompatibilities.html

gcc is one compiler out of many.  While gcc might always collapse them,
others might not always or never at all do so.

Yeah... I completely agree :-) ... the output will be compiler
dependant.......was just saying that if you use gcc you are guaranteed
to get the same address.

Damned if I'm going to check but I remember this being an issue with GCC 

at some point so I doubt that that the first version of GCC that I used 

(2.7.2) already did or reliably did in fact...

Rene.

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