Boost logo

Boost :

Subject: Re: [boost] [numeric_limits] min() for floating point versus integers (Was: [xint] Third release is ready, requesting preliminary review)
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2010-05-04 07:34:51


Frank Mori Hess wrote:
>
> Speaking of numeric_limits, anyone know why they defined
> numeric_limits::min()
> to mean something completely different for floating and integer types?
>
> numeric_limits<double>::min is: 2.22507e-308
> numeric_limits<int>::min is: -2147483648

That is a pain, isn't it? I can only assume it was to avoid adding yet more attributes. (You'd need biggest, smallest, maximum, and minimum, or some such set to express everything.) Floating point types don't have asymmetrical ranges like integral types.

_____
Rob Stewart robert.stewart_at_[hidden]
Software Engineer, Core Software using std::disclaimer;
Susquehanna International Group, LLP http://www.sig.com

IMPORTANT: The information contained in this email and/or its attachments is confidential. If you are not the intended recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments. Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer, solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of the information contained herein or that this message or any of its attachments is free of viruses.


Boost list run by bdawes at acm.org, gregod at cs.rpi.edu, cpdaniel at pacbell.net, john at johnmaddock.co.uk