Re: usage of '+' sign in say statement

Howdy!

The "+" forces scalar context for the call to localize_strftime. I'm not clear on the benefit of that in this specific example, given that the sub is not context sensitive.

yours,
Michael

Comment on Re: usage of '+' sign in say statement

Replies are listed 'Best First'.
Re^2: usage of '+' sign in say statement by Eily (Monsignor) on Dec 05, 2017 at 16:49 UTC
Unary + doesn't do anything on its operand, unlike unary - which does force scalar context: `use v5.14; use warnings; use strict; sub array { my @array = ("Hello ", "World"); @array; } say array; say+array; say-array; # warning here say scalar array;` [download] `Ambiguous use of -array resolved as -&array() at context.pl line 13. Hello World Hello World -2 2` [download]	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re^2: usage of '+' sign in say statement
by Eily (Monsignor) on Dec 05, 2017 at 16:49 UTC

Unary + doesn't do anything on its operand, unlike unary - which does force scalar context:

use v5.14;
use warnings;
use strict;

sub array
{
  my @array = ("Hello ", "World");
  @array;
}

say array;
say+array;
say-array; # warning here
say scalar array;
[download]

Ambiguous use of -array resolved as -&array() at context.pl line 13.
Hello World
Hello World
-2
2
[download]

[reply]
[d/l]
[select]