Re: [9fans] Compiler bug

[Charles Forsyth <charles.forsyth@gmail.com>]

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On 30 May 2014 14:03, Julius Schmidt <aiju@phicode.de> wrote:

> Comparing an int to a u16int causes the int to be cast to unsigned int,
> instead of the u16int being promoted to int and then compared (as I would
> argue the C89 standard specifies).


Ken's compiler implements the original unsigned-preserving rule instead of
ANSI's later invention.
That has the advantage of the type not being dependent on the underlying
storage size,
but as you say the disadvantage of not using the so-called value-preserving
rule.
I suppose if I add some code that detects where it made a difference it
might not cause too
much trouble to change from the simple rule. I imagine p9p has already
found most cases anyway.
Otherwise, it's another more subtler nsec!

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