Re: EndianU32_NtoB
Re: EndianU32_NtoB
- Subject: Re: EndianU32_NtoB
- From: Jens Alfke <email@hidden>
- Date: Fri, 30 Oct 2009 10:46:34 -0700
On Oct 30, 2009, at 10:31 AM, Sean McBride wrote:
I don't get why for ints they have host<->big, host<->little,
etc. for the floats they don't. Instead they have those weird host<-
swapped. And though they take floats, they return structs.
I think this is to avoid storing swapped floats in 'float' variables.
A swapped int is a valid int, but a swapped float is often an invalid
IEEE floating-point value. My suspicion is that the CPU might mistreat
such values when they're read into FP registers, even if no arithmetic
is done on them in that state. (But that's just a suspicion; anyone
know the gory details?)
—Jens_______________________________________________
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