anders@verity.com (Anders Wallgren) (12/22/90)
I think I've found a bug in the PLstrcat routine in the MPW QR1 libraries (on ETO #1): if the second string (the one being concated to the end of the first one) is zero-length, the routine will trash memory. This seems to happen because it subtracts one from the length of the second string without checking the length for zero first. Since this number is then used to control the loop that does the actual copying, this causes it to concat 255 bytes to the end of the first string, writing past the end if it already has characters in it. An easy workaround is to just check the length of the second string and not make the call if it's zero. anders
ldo@waikato.ac.nz (Lawrence D'Oliveiro, Waikato University) (12/24/90)
Ack! Obviously there are still *more* people inside Apple who don't know how to use a DBRA instruction properly... Lawrence D'Oliveiro fone: +64-71-562-889 Computer Services Dept fax: +64-71-384-066 University of Waikato electric mail: ldo@waikato.ac.nz Hamilton, New Zealand 37^ 47' 26" S, 175^ 19' 7" E, GMT+13:00