CTRL(x)

[Joseph S. D. Yao]

In article <1319 at sunybcs.UUCP> colonel at sunybcs.UUCP (Col. G. L. Sicherman) writes:
>) >But. . .is there a way to write an ANSI cpp version of
>) >        #define CTRL(c)
>		   ...  What's wrong with this old trick?
>	#define Q "
>	#define CTRL(z) (Q z "[1]^0100)

The XOR, (x^0100), will not generally work.  Use (x&037).  Also,
there was some concern that "..."[x] will not work where a
constant is required, such as in a case statement.
-- 

	Joe Yao		hadron!jsdy at seismo.{CSS.GOV,ARPA,UUCP}
			jsdy at hadron.COM (not yet domainised)