On 6/29/05, Michael G Schwern <[EMAIL PROTECTED]> wrote: > On Tue, Jun 28, 2005 at 06:25:31PM -0000, Justin Mason wrote: > > However, there is one key difference: "while (<$io>)" and "while > > ($io->getline)" ha ve different behaviour. If the last line of an input > > file > > contains "0" (with no trailing newline), "while (<$io>)" will read it and > > perform an iteration of the while loop, but "while ($io->getline)" will read > > it, consider it a false value, and instead break out of the while loop. > > Confirmed. while(<FH>) must have some sort of special case to consider > "0" true to avoid this sort of gotcha.
while (<FH>) { is documented to be equivelent to while (defined($_=<FH>)) { in perlvar I/O Operators. -- perl -Mre=debug -e "/just|another|perl|hacker/"