Re: [Boost-users] use boost::lambda library with count_if

From: yinglcs2_at_[hidden]
Date: 2006-02-25 12:51:44

Sorry, you are right. that code compiles fine. I made
a mistake somewhere else.

You mention "be careful with literal floating 
 point comparisons in general.".  I thought doing
float point == comparision is bad. But I am just doing
less than (<), so i am okay. Is that true?

--- Kevin Heifner <heifner_k_at_[hidden]> wrote:

> yinglcs2_at_[hidden] wrote:
> > What is the easiest way to use boost::lambda
> library
> > with count_if to count how many item is less than
> > 0.05?
> > 
> > I try the following, but that not work:
> > 	int no = count_if(myList.begin() myList.end(), _1
> <
> > 0.05);
> 
> I think we are going to need more information.  Can
> you provide 
> more of the code?  This looks fine except you are
> doing a literal 
> floating point comparison.  Be careful with literal
> floating 
> point comparisons in general.
> 
> KevinH
> -- 
> Kevin Heifner  heifner @ ociweb.com 
> http://heifner.blogspot.com
>            Object Computing, Inc. (OCI)
> www.ociweb.com
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