RE: Bug report: sort.c or AIX compiler

[Lemley James - jlemle]

Paul, Jim and other interested parties:  
The problem isn't with bool or _Bool; the problem reproduces with char
and unsigned char as well.  Moreover, the assert won't catch it. 

Looks like a rather severe compiler bug to me.

Example program output: 

-2 + b is -1
-2 + b is -1
-2 + b is -1
&d[-2 + (int) b] is ffffffffffff658
&d[-2 + (char) b] is 10000000fffff658
&d[-2 + (bool) b] is 10000000fffff658

That's not index overflow.  That's off by A LOT.  

Summary:  don't do anything to sort.c or friends; this is a compiler
problem.   It may be debatable practice to do math with a bool assuming
the value of true is always 1, but in this case it doesn't look wrong.  

Thanks for listening.


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