diff options
| author | Father Chrysostomos <sprout@cpan.org> | 2010-10-04 13:58:49 -0700 |
|---|---|---|
| committer | Father Chrysostomos <sprout@cpan.org> | 2010-10-04 13:58:49 -0700 |
| commit | afa74577a6e8d7cf96f7c62e4acca52fda973699 (patch) | |
| tree | a269635929639ed9dbf10beae4f99382f480a8f7 /pod | |
| parent | b20c4ee1fc23699f6cbe3ce96cc8fe6eb4c52c4c (diff) | |
| download | perl-afa74577a6e8d7cf96f7c62e4acca52fda973699.tar.gz | |
[perl #45133] -0.0 has variable Boolean value
This patch makes -0.0 stringify as "0" (while leaving sprintf %g/%f
unchanged).
Diffstat (limited to 'pod')
| -rw-r--r-- | pod/perldelta.pod | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index 5cd276e3d4..7e1cca2618 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -131,6 +131,14 @@ The unary negation operator C<-> now treats strings that look like numbers as numbers L<[perl #57706]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=57706>. +=head2 Negative zero + +Negative zero (-0.0), when converted to a string, now becomes "0" on all +platforms. It used to become "-0" on some, but "0" on others. + +If you still need to determine whether a zero is negative, use +C<sprintf("%g", $zero) =~ /^-/> or the L<Data::Float> module on CPAN. + =head1 Deprecations XXX Any deprecated features, syntax, modules etc. should be listed here. @@ -677,6 +685,12 @@ L<[perl #48332]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=48332>. The C<&> C<|> C<^> bitwise operators no longer coerce read-only arguments L<[perl #20661]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=20661>. +=item * + +Stringifying a scalar containing -0.0 no longer has the affect of turning +false into true +L<[perl #45133]|http://rt.perl.org/rt3/Public/Bug/Display.html?id=45133>. + =back =head1 Known Problems |