Possible Duplicate:
Difference between i++ and ++i in a loop?
Is there a performance difference between i++ and ++i in C++?
Incrementing in C++ - When to use x++ or ++x?
Why use ++i instead of i++ in cases where the value is not used anywhere else in the statement?
Why in C++ textbooks is there a preference for writing ++x
rather than x++
when this occurs in a context where the pre/post nature doesn't matter ?
In general, it seems that actions are given in object,verb order
eg:
foo.size()
is the 'object' foo
, with 'verb' size
a + b
is 'object' a
, with verb +
In EXCEL you always select the object , then specify the action (verb).
note : Lotus 1-2-3 did things in verb-object order which caused enormous problems for people who had developed muscle memory in the 123 to XL transition...
I prefer ++x
over x++
because, to me, it emphasizes the increment operation over the name of the variable. It's strictly a matter of preference, but I think it highlights my intention more clearly.
More important is that you choose one or the other and use it consistently. Code that's peppered with ++x
and x++
used arbitrarily when their effect is identical is just a recipe for unmaintainability. Sooner or later, someone's going to "fix" it to be consistent, and they'll probably introduce bugs when they change an instance that really does matter.