Which for loop format to use?

Question

When I am writing code, I sometimes wonder which format is faster;

The old fashioned use of an incrementing variable: i

or

A foreach loop?

And when writing your code, have you ever tried to test it yourself? — Ondrej Janacek, Feb 06 '14 at 14:30
Duplicate http://stackoverflow.com/q/365615/1284902 http://stackoverflow.com/q/4661138/1284902 — Tarec, Feb 06 '14 at 14:32

score 2 · Accepted Answer · edited May 23 '17 at 10:26

2

Neither is "faster" you need to use the right tool for the job, sometimes for is faster sometimes foreach is faster.

"micro optimizations" like you are taking about are so insignificant that you will NEVER recover the time in speed up than you will compared to the amount of extra time you took implementing it.

If your program is slow use a profiler on it and find where the real problem is.

edited May 23 '17 at 10:26

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answered Feb 06 '14 at 14:30

Scott Chamberlain

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score 0 · Answer 2 · answered Feb 06 '14 at 14:37

Please refer the following links, which might give you more idea about for and foeach.

for: http://msdn.microsoft.com/en-us/library/ch45axte.aspx

foreach: http://msdn.microsoft.com/en-us/library/ttw7t8t6.aspx

for vs foreach

http://social.msdn.microsoft.com/Forums/vstudio/en-US/4ede2e82-e3df-44dc-a863-a871925c5cc5/foreach-or-for-loop-to-improve-performance-c-code http://blogs.msdn.com/b/ericlippert/archive/2009/05/18/foreach-vs-foreach.aspx

Which for loop format to use?

2 Answers2