RE: [arm-gnu] doubles display way off in gdb/insight

["James Kehl" <jamesk@xxxxxxxxxxx>]

> -----Original Message-----
> From: Gene Smith [mailto:gds@xxxxxxxxxxxxx]
> Sent: Sunday, 7 February 2010 9:30 AM
> To: arm-gnu@xxxxxxxxxxxxxxxx
> Subject: [arm-gnu] doubles display way off in gdb/insight
> 
> In my program doubles work fine. But when I inspect them in gdb (or
> insight) they appear wildly off: example: 3.14e0 => 943.3e315. Plain
> floats are OK. This is with cortex m3. Doubles display fine when
> debugging with insight with native x86 programs. Anyone else see this
> and, if so, know a solution?
> 

There can be lots of hassles with ARM doubles and endianness - depending
on the architecture and ABI, they can be big-, little- or even
middle-endian.

This wouldn't turn 3.14e0 into 943.3e315, though - 943.3e315 is actually
larger than DBL_MAX, so I don't know where that could have come from.
Was that the exact number?

Does 0.0 map to 0.0?

J