In article <3265 at umcp-cs.UUCP>, I left out a declaration: > reader(f, buf, len) > FILE *f; char *buf; int len; > { ... (`len' would have defaulted properly, of course.) -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 1516) UUCP: seismo!umcp-cs!chris CSNet: chris at umcp-cs ARPA: chris at mimsy.umd.edu