On Thu, Jul 04, 2019 at 02:10:22PM +0200, Vincent Lefevre wrote: > Package: perl > Version: 5.28.1-6 > Severity: normal > > The following does no yield any error: > > perl -e 'use strict; my $x = - Inf;' > > This does not seem to be intended.
Inf is not special here, other strings behave similarly. Googling a bit turns up https://stackoverflow.com/questions/23215511/ambiguous-use-of-constant-resolved-as-constant https://www.perlmonks.org/?node_id=1047125 and the following passage in perlop: Unary "-" performs arithmetic negation if the operand is numeric, including any string that looks like a number. If the operand is an identifier, a string consisting of a minus sign concatenated with the identifier is returned. So it looks like this is intentional or at least documented behaviour that we're stuck with. -- Niko Tyni nt...@debian.org
