Does Int32 return decimals?

Question

Trying to define an Int32 variable here, but need it to return whole number, not decimals.

So I have this:

Int32 HalfCount = Convert.ToInt32(Math.Round(11 / 2, 0));

But get error.

Than I use this:

Int32 HalfCount = Math.Round(11/2);

Get another error. Can not convert Double to Decimal or something like that.

How am I supposed to declare an Int32 to be rounded in half? Or does Int32 automatically round it?

Could I just do this?

Int32 HalfCount = (11/2);

Doesn't look like a syntax error, but I have to know before I run the code, cause it will jack everything up if it is wrong.

I just need to return a whole number (without decimals), I don't care which way it goes (up or down is fine by me).

What do you mean by "I have to know before I run the code, cause it will jack everything up if it is wrong." — BoltClock, Mar 09 '14 at 12:26
Can't you just try these things out in a small console application, and see? — Arve Systad, Mar 09 '14 at 12:27
Write a test method first instead of writing code and running it directly on productionand hoping it works. — CodeCaster, Mar 09 '14 at 12:28
"But get error" is *never* enough description of what is wrong. Please read http://tinyurl.com/so-list — Jon Skeet, Mar 09 '14 at 12:29
@BoltClock - It will completely ruin the site. Does that make any sense now? — Solomon Closson, Mar 09 '14 at 12:30
How about writing a small separate test program? Then any site won´t be affected. — deviantfan, Mar 09 '14 at 12:30
Simple question... and all I get are downvotes. Thanks guys! — Solomon Closson, Mar 09 '14 at 12:31
possible duplicate of [Why integer division in c# returns an integer but not a float?](http://stackoverflow.com/questions/10851273/why-integer-division-in-c-sharp-returns-an-integer-but-not-a-float) — CodeCaster, Mar 09 '14 at 12:36
@lucounu - I don't mock a test environment. I simply don't have enough knowledge on how to set one up. — Solomon Closson, Mar 09 '14 at 12:36
@Solomon Closson: File > New Project, Console Application. You can easily test a simple integer division in a console application without jacking anything up (except that console application). — BoltClock, Mar 09 '14 at 12:37
Jon, your link is a dead one, or is it a self-referential wheeze? — HenryRootTwo, Aug 08 '14 at 21:27

score 1 · Accepted Answer · answered Mar 09 '14 at 12:31

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Your last example will work, especially since you don't care which way the value is rounded.

Int32 HalfCount = (11/2);  // result is 5

This will drop the decimal portion of the result, storing only the integer portion in HalfCount.

answered Mar 09 '14 at 12:31

Grant Winney

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Thank You VERY VERY MUCH! And also Thanks for not being a smart ass about it! – Solomon Closson Mar 09 '14 at 12:32
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@Solomon Closson , no one was a smart ass. You should flat-out not be in a position to "jack things up" in any production environment before you fix how you're working. – Iucounu Mar 09 '14 at 12:35
Yeah, I agree, but don't know how to set up a test environment either, other than on localhost, which is what I'm doing now. – Solomon Closson Mar 09 '14 at 12:37
Thanks, I need to start doing that! – Solomon Closson Mar 09 '14 at 13:15

score 0 · Answer 2 · answered Mar 09 '14 at 12:31

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Int32 simply return unsigned integer which it does not return any decimal digits.

answered Mar 09 '14 at 12:31

James Aster

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Int32 is signed. Also, this question is about more than just the data type, it's about division. :) – CodeCaster Mar 09 '14 at 12:43
The result of the division is finally storing in integer variable. – James Aster Mar 09 '14 at 13:36

Does Int32 return decimals?

2 Answers2