• monarch_dodra (12/12) Aug 27 2012 When comparing pointers, is there any difference when writing:
• bearophile (6/8) Aug 27 2012 For two pointers using "==" or "is" is the same. And I don't
• monarch_dodra (2/10) Aug 28 2012 TY for your reply.

"monarch_dodra" <monarchdodra gmail.com> writes:

When comparing pointers, is there any difference when writing:

int* p1, p2;
if(p1 == p2) {...}
if(p1 is p2) {...}

?

My guess would be that no, there isn't *but*:
*Using "==" shows the *intent* of comparing the pointer values?
*Using "is" shows the *intent* of checking if the pointed objects 
are the same?

Either that, or is it considered "best practice" to use "is" to 
compare pointers, because "==" and "is" have a different meaning 
in the context of using classes?

"bearophile" <bearophileHUGS lycos.com> writes:

monarch_dodra:

 Either that, or is it considered "best practice" to use "is" to 
 compare pointers,

For two pointers using "==" or "is" is the same. And I don't 
remember "best practices" about this. If your pointers later risk 
becoming class references, then it's better to use "is".

Bye,
bearophile

"monarch_dodra" <monarchdodra gmail.com> writes:

On Monday, 27 August 2012 at 16:33:46 UTC, bearophile wrote:
 monarch_dodra:

 Either that, or is it considered "best practice" to use "is" 
 to compare pointers,

 For two pointers using "==" or "is" is the same. And I don't 
 remember "best practices" about this. If your pointers later 
 risk becoming class references, then it's better to use "is".

 Bye,
 bearophile

TY for your reply.