(j3.2006) (SC22WG5.3932) Two requirements for critical software at JPL
Wed Jan 28 20:19:00 EST 2009
On Wed, 2009-01-28 at 16:00 -0800, Bill Long wrote:
> I would note that our compiler (as a C program itself) contains an
> enormous number of asserts. They help in pinpointing bugs closer to
> the point where something went wrong (as opposed to much farther down
> the execution sequence when the consequences of the bug manifest as a
> fatal error). As such they are useful. We also get complaints that
> the compiler is slow. For a compiler that's not horribly serious.
> For production Fortran code poor performance is a non-starter.
> Different environments and different objectives. At a minimum, if we
> wanted asserts in Fortran, there would have to be a simple way to make
> them appear to be comments to the compiler. (Basically the old "D"
Dick's proposal (04-212) suggested something aimed in that direction.
Dan's proposals (04-14) had more more concrete features aimed in
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