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From: vander@nssdcb.gsfc.nasa.gov (John Vanderpool)
Newsgroups: comp.lang.c
Subject: _tolower and _toupper macros
Message-ID: <2891@dftsrv.gsfc.nasa.gov>
Date: 24 Jul 90 19:49:02 GMT
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Organization: NASA - Goddard Space Flight Center
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its  amazing that _toupper and _tolower "misbehave" on the SUN's
it seems like they do the masking without doing the checking

from VAXC v3.0 ctype.h

#define _toupper(c)	((c) >= 'a' && (c) <= 'z' ? (c) & 0x5F:(c))
#define _tolower(c)	((c) >= 'A' && (c) <= 'Z' ? (c) | 0x20:(c))

work good-to-go

--
John R. Vanderpool				vander@nssdca.gsfc.nasa.gov
NASA / Goddard Space Flight Center (634)
Greenbelt, MD  20771