Re: "make positive" function
Re: "make positive" function
- Subject: Re: "make positive" function
- From: Matt Neuburg <email@hidden>
- Date: Mon, 11 Sep 2006 12:02:51 -0700
- Thread-topic: "make positive" function
On Mon, 11 Sep 2006 19:28:29 +0100, Mike Abdullah <email@hidden>
said:
>I'm not a C expert, so apologies for this one:
>
>Basically, I want to take a double and get its closest positive
>integer. I haven't been able to find anything that does what I want
>(I have a feeling it might be a modulus?).
>
>Anyway, it seems to me I have 3 options:
>
>1. There is an existing, simple function in C - if so can someone
>tell me what it is ? :)
>
>2. Do the incredibly clunky, square variable, find square root
>
>3. Write my own function.
It isn't a question of being a C expert. Use the headers, use the docs. Look
in math.h. If you don't know what the functions do, and you don't have K&R,
use Xcode's help. For example, search on "fabs". It contains links to the
rest of what you probably want to know. m.
--
matt neuburg, phd = email@hidden, <http://www.tidbits.com/matt/>
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