Questions about NCEG

[Paul Eggert]

Andrew P. Mullhaupt asks (re `#define infinity (1e300*1e300)'):

	Will this work if the compiler supports IEEE extended format for constants?

In theory, yes.  In practice, no.  I'd prefer

 	#define infinity (1.0/0.0)

which should work on ANSI C + IEEE 754 implementations regardless of format.
However, some compilers balk at `1.0/0.0'.  `1e300*1e300' works on all IEEE 754
implementations that I know of, and also gets through the broken compilers.