Shifting question

[John F. Haugh II]

In article <11592 at steinmetz.ge.com> davidsen at crdos1.UUCP (bill davidsen) writes:
>  If I sound really disgusted about this, I am. Compilers on brain
>damaged hardware should work correctly.

i have to disagree.  the only way to inform the compiler that the shift
will always be by a positive amount is to cast the shift count to an
unsigned and the only way to inform the compiler the value is in range
is to have subranges ala pascal.

C does not have subranges as pascal has and expecting bounds checking on
all shift operations seems to deviate from the standard C idiom of little
or no run time checking.  C does not check array bounds, even where it is
possible, and it should not be forced to check shift counts.

- john.
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