386/3.0e bug in cc

[Larry Jones]

I just ran across a bug in the c compiler on 386/3.0e.  If you
compare an unsigned constant expression to a signed constant
expression, the result of the comparison is computed at compile
time using a SIGNED comparison rather than an UNSIGNED comparison.

For example:

	~(unsigned)0 < 1000

is evaluated as 1 when it should clearly be 0.  If you stick in a
variable so that the compiler has to generate code, the code gets
the right answer.

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Larry Jones                         UUCP: uunet!sdrc!scjones
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