Optimization (was Re: volatile)

[Richard A. O'Keefe]

Having expressed vehement opposition to 'noalias', I'd like to balance
things out by supporting 'volatile'.  The effect of 'volatile' has to
be available somehow if C is to be useful for writing device drivers &
so on, and it shouldn't be a #pragma because #pragma isn't supposed to
change what anything _means_.  The very worst thing about 'volatile'
is that on the evidence of this newsgroup, a lot of people have trouble
spelling it (:-).