b18 ctype.h isXXX and -Wall -pedantic
Richard H. Gumpertz
rhg@cps.com
Wed Nov 19 09:56:00 GMT 1997
When I use isdigit (and similar isXXX macros) from b18 ctype.h and
compile with -Wall -pedantic, I get spurious warnings for each use
of the macro:
"warning: subscript has type `char'"
An appropriate fix would probably be to replace
(_ctype_+1)[c]
in each of the macros with either
(_ctype_+1)[(int)(c)]
or
_ctype_[1+(int)(c)]
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