[Flightgear-devel] GCC 3.0 Floating Point

[David M. <da...@me...>]

I've noticed that GCC/G++ 3.0 uses double rather than float by default
for floating point constants, so that (under IA86)

  1.0 => 8 bytes
  1.0F => 4 bytes
  1.0L => 12 bytes

This causes some interesting problems, especially in JSBSim, which is
using float rather than double math most of the time.  To be safe,
then, if you want to be sure you have a float constant (and that
everything doesn't get promoted to double in every equation), make
sure you add the 'F' to the end.


All the best,


David

-- 
David Megginson
da...@me...