macros with parameters in MSC 5.0

[Joe Baker]

I am a C neophyte and am looking for a solution to the following problem:

I am attempting to port the latest version of the public domain spreadsheet
calculator, sc 5.1, to an IBM PC.  I am using Microsoft C 5.0.  The
code uses the following macro to produce control characters for
comparison to input characters in case statements and the like:

#define ctl(c) ('c'&037)

This requires parameter substitution within a character constant, which
is not allowed in MSC5.0 (My reading of Kernighan & Ritchie pg. 207
seems to indicate that they don't allow it either.  However, the 
program compiles and runs on lots of systems.)

The Microsoft manual suggests use of the 'stringizing' operator, #,
but this produces a string literal instead of a character constant.

I have come up with some ugly fixes, but would like to know: what is
the Right Way to do this?

Thanks,


- Joe Baker, Dept. of Electrical Engineering
6731 Boelter Hall, UCLA, L.A., CA 90024 (213) 825-7079, 825-2327
ARPA: jbaker at ee.ucla.edu UUCP: {ihnp4|randvax|ucbvax}!ucla-cs!uclaee!jbaker

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