Question about toupper and tolower
Hal Perkins
hal at cornell.UUCP
Sat Nov 12 11:26:23 AEST 1983
You can't just turn on or off the high-order bit on any character to
convert between upper and lower case. You still need to test that the
character you are converting is really a letter, and not a digit or
punctuation mark that should not be changed by toupper and tolower.
Hal Perkins UUCP: {decvax|vax135|...}!cornell!hal
Cornell Computer Science ARPA: hal at cornell BITNET: hal at crnlcs
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