Re: A simple query about memory mgmt

[Rene Herman <rene.herman@xxxxxxxxxxxx>]

On 13-08-08 02:57, Peter Teoh wrote:

> But since u have assigned it to the same address of NAME, it will 
> always print HELLO world.   So the whole thing has nothing got to do 
> with optimization (gcc -O0 to disable it, which is also default).

Can y'all please just listen to Johannes? It definitely does. We have:

> 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;

Just replace it by

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

to understand that allocating it just once is an optimization.

Rene.

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