best-practice on for loop's condition

Posted by guest on Stack Overflow See other posts from Stack Overflow or by guest
Published on 2010-05-25T23:14:31Z Indexed on 2010/05/25 23:21 UTC
Read the original article Hit count: 190

Filed under:

best-practices

|

for-loop

|

compilation

|

compile-time

what is considered best-practice in this case?

for (i=0; i<array.length(); ++i)

or

for (i=array.length(); i>0; --i)

assuming i don't want to iterate from a certain direction, but rather over the bare length of the array. also, i don't plan to alter the array's size in the loop body.

so, will the array.length() become constant during compilation? if not, then the second approach should be the one to go for..

© Stack Overflow or respective owner

Related posts about best-practices

Batch Best Practices and Technical Best Practices Updated

as seen on Oracle Blogs - Search for 'Oracle Blogs'
The Batch Best Practices for Oracle Utilities Application Framework based products (Doc Id: 836362.1) and Technical Best Practices for Oracle Utilities Application Framework Based Products (Doc Id: 560367.1) have been updated with updated and new advice for the various versions of the Oracle… >>> More
Partial template specialization of free functions - best practices

as seen on Stack Overflow - Search for 'Stack Overflow'
As most C++ programmers should know, partial template specialization of free functions is disallowed. For example, the following is illegal C++: template <class T, int N> T mul(const T& x) { return x * N; } template <class T> T mul<T, 0>(const T& x) { return T(0); } //… >>> More
Object Oriented PHP Best Practices

as seen on Stack Overflow - Search for 'Stack Overflow'
Say I have a class which represents a person, a variable within that class would be $name. Previously, In my scripts I would create an instance of the object then set the name by just using: $object->name = "x"; However, I was told this was not best practice? That I should have a function set_name()… >>> More
Good place to look for example Database Designs - Best practices

as seen on Stack Overflow - Search for 'Stack Overflow'
I have been given the task to design a database to store a lot of information for our company. Because the task is rather big and contains multiple modules where users should be able to do stuff, I'm worried about designing a good data model for this. I just don't want to end up with a badly designed… >>> More
Notification Email Best Practices--From Server Setup to Programming

as seen on Stack Overflow - Search for 'Stack Overflow'
All, I'm in the process now of building a SaaS tool that allows network admins to generate notification emails to the members of the end-users of our platform (among many many other things). I'm running into a bit of an "out of my expertise" wall, as I know there are a lot of variables involved… >>> More

Related posts about for-loop

Label in PyQt4 GUI not updating with every loop of FOR loop

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having a problem, where I wish to run several command line functions from a python program using a GUI. I don't know if my problem is specific to PyQt4 or if it has to do with my bad use of python code. What I wish to do is have a label on my GUI change its text value to inform the user which… >>> More
breaking out of for loop when running a function inside a for loop

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm embarrassed that I'm asking this question, but here I go: Suppose you have the following function foo. When I'm running a for loop, I'd like it to skip the remainder of foo when foo initially returns the value of 0. However, break doesn't work when it's inside a function. As it's currently… >>> More
breaking out of for loop when running a function inside a for loop in R

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm embarrassed that I'm asking this question, but here I go: Suppose you have the following function foo. When I'm running a for loop, I'd like it to skip the remainder of foo when foo initially returns the value of 0. However, break doesn't work when it's inside a function. As it's currently… >>> More
Help with converting foreach loop to while loop in c#

as seen on Stack Overflow - Search for 'Stack Overflow'
I had learnt by reading your great answers here, that it is not good practice deleting items from within a foreach loop, as it is (and I quote) "Sawing off the branch you're sitting on". My code currently removes the text from the dropdownlist, but the actual item remains (just without text displayed)… >>> More
How John Got 15x Improvement Without Really Trying

as seen on Oracle Blogs - Search for 'Oracle Blogs'
The following article was published on a Sun Microsystems website a number of years ago by John Feo. It is still useful and worth preserving. So I'm republishing it here. How I Got 15x Improvement Without Really Trying John Feo, Sun Microsystems Taking ten "personal" program… >>> More