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Re: [Gnash-dev] Re: JPEGs offset

From: Benjamin Wolsey
Subject: Re: [Gnash-dev] Re: JPEGs offset
Date: Thu, 16 Oct 2008 20:52:06 +0200

> This solution seems acceptable to me, but I'm curious if anyone can
> shed some light on the floating point conversion:
> return static_cast<boost::int32_t>(static_cast<boost::uint32_t>(a * 20));
> used in PIXELS_TO_TWIPS.  Is there a compiler flag or something that
> allows negative floating point numbers to be converted to a non-zero
> unsigned int that I'm missing for my cross compile?

It's undefined behaviour, so there's nothing you can do to be sure on
any platform. I think we should be using the safe conversion all the


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