Comments on: Post-Increment vs Pre-Increment

By: Ofek

Ofek — Sat, 30 Jan 2010 21:57:16 +0000

Huh?? some markup mix trashed my comment. Here goes again, with explicit URLs:
Andrew Koenig probably sealed the pre/post increment argument permanently: http://dobbscodetalk.com/index.php?option=com_myblog&show=Efficiency-versus-intent.html&Itemid=29 .
Or at least should have. The question still arises now and then, and there’s a wide consensus that in regular uses (e.g. using integers to iterate in a loop) there’s no performance difference for ~3 decades now: http://stackoverflow.com/questions/24886?tab=oldest#tab-top

By: Ofek

Ofek — Sat, 30 Jan 2010 21:54:28 +0000

probably sealed the pre/post increment argument permanently. Or at least should have. The question now and then, and there's a wide consensus that in regular uses (e.g. using integers to iterate in a loop) there's no performance difference for ~3 decades now.

By: ondra

ondra — Fri, 29 Jan 2010 16:07:42 +0000

There isn’t any reason for these two to differ if you don’t use the result at all.

By: KristofU

KristofU — Fri, 29 Jan 2010 15:14:48 +0000

The best reason for always using pre-increment/decrement is the genericity of the code.
A certain algorithm may one day become a generic one, and the types passed into it may no longer be simple ints.