Character types in ANSI C

[meissner at dg_rtp.UUCP]

In article <472 at myrias.UUCP> cg at myrias.UUCP (Chris Gray) writes:
> 
> What exactly are the compatibility rules for character types in ANSI C?
> I.e. which of the following are legal:
> 
>     char *p1;
>     unsigned char *p2;
>     signed char *p3;
> 
>     p1 = p2;	    /* case 1 */
>     p1 = p3;	    /* case 2 */
>     p2 = p3;	    /* case 3 */
> 
These are illegal.  Even though the underlying bit representation may be
the same, they are different types.  The same holds for pointers to int
and pointers to long on a machines where sizeof(int) == sizeof(long).
-- 
	Michael Meissner, Data General	Uucp: ...mcnc!rti-sel!dg_rtp!meissner

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