On 2020-01-20 08:32, Peter Pentchev wrote:
On Sun, Jan 19, 2020 at 08:25:15PM -0800, ToddAndMargo via perl6-users wrote:
One last question on htis. What does
multi sub prefix:<+^>(Any --> Int:D)
Mean. Prefix means before. +^(Any) get
me a participation trophy, so I do not
understand.
:'(
On Sun, Jan 19, 2020 at 08:25:15PM -0800, ToddAndMargo via perl6-users wrote:
> One last question on htis. What does
>
> multi sub prefix:<+^>(Any --> Int:D)
>
> Mean. Prefix means before. +^(Any) get
> me a participation trophy, so I do not
> understand.
>
>
> :'(
>
> INQUIRING MINDS WANT
One last question on htis. What does
multi sub prefix:<+^>(Any --> Int:D)
Mean. Prefix means before. +^(Any) get
me a participation trophy, so I do not
understand.
:'(
INQUIRING MINDS WANT TO KNOW! (That is
a joke referencing a tabloid commercial.)
-T
On 2020-01-19 08:52, Marcel Timmerman wrote:
On 1/19/20 2:47 AM, ToddAndMargo via perl6-users wrote:
Hi All,
Thank you all for the wonderful help on this.
What I am still confused about is how to
read these silly definition lines:
multi sub infix:<+>($a, $b --> Numeric:D)
multi
On 1/19/20 2:47 AM, ToddAndMargo via perl6-users wrote:
Hi All,
Thank you all for the wonderful help on this.
What I am still confused about is how to
read these silly definition lines:
multi sub infix:<+>($a, $b --> Numeric:D)
multi sub infix:<+^>($a, $b --> Int:D)
How exactly
On 2020-01-18 15:59, Elizabeth Mattijsen wrote:
s/he/it/
The idea that no gentleman ever swears is all wrong.
He can swear and still be a gentleman, if he does
it in a nice and benevolent and affectionate way.
--Mark Twain - Private and Public Morals speech, 1906
:-)
Hi All,
Thank you all for the wonderful help on this.
What I am still confused about is how to
read these silly definition lines:
multi sub infix:<+>($a, $b --> Numeric:D)
multi sub infix:<+^>($a, $b --> Int:D)
How exactly does the above tell me to do this?
$c = $a + $b
On 2020-01-18 15:59, Elizabeth Mattijsen wrote:
infix: foo + bar
prefix:+foo
postfix: foo++
circumfix: [foo]
postcircumfix: foo[bar]
Hi Liz,
You are still putting the cart before the horse.
This is the step you jumped over:
An "infix" is a term that ...
You
> On 19 Jan 2020, at 00:24, ToddAndMargo via perl6-users
> wrote:
> Wonderful so far. But then he DOES not describe what
> "infix, prefix, postfix, circumfix, postcircumfix"
> arfe/means before jumping into details. This is bad
> form in technical writing.
s/he/it/
> Again, wonderful so far.
On 2020-01-18 13:16, Brad Gilbert wrote:
Note that Int:D does NOT do any coercions.
Int:D() does do coercions.
Specifically Int:D() is short for Int:D(Any). Which means it coerces
from Any to Int, and the result must be defined.
Does the same apply to UInt:D and UInt:D()?
On 2020-01-18 13:16, Curt Tilmes wrote:
On Sat, Jan 18, 2020, 3:39 PM ToddAndMargo via perl6-users
mailto:perl6-us...@perl.org>> wrote:
4) infix:<+> means you can call it as a sub that
gives you back the wrong answer.
$c = +($a, $b)
$c = +^($a,
On 2020-01-18 13:16, Brad Gilbert wrote:
Most operators in Raku are subroutines.
1 + 2
infix:<+>( 1, 2 )
-1
prefix:<->( 1 )
My mistake was thinking `infix:<+>` meqan to put the `+`
before the `)`
Note that Int:D does NOT do any coercions.
Int:D() does do coercions.
On 2020-01-18 13:10, Veesh Goldman wrote:
Hi Todd,
I would suggest reading https://docs.raku.org/language/optut.
This one starts out with:
Operators are declared by using the sub keyword followed
by prefix, infix, postfix, circumfix, or postcircumfix;
then a colon and the operator
On 2020-01-18 13:11, Marcel Timmerman wrote:
my $a=2; my $b=3; my $c = +($a, $b)
Here is the mistake that + in front of a list means (...).elems (also
used as a prefix, not infix), so there are 2 items in the list which is
true. So '+(1,2,3)' returns 3 and '+(^10)' is 10 and
Most operators in Raku are subroutines.
1 + 2
infix:<+>( 1, 2 )
-1
prefix:<->( 1 )
You can add your own operators by creating such a subroutine.
sub postfix: ( UInt \n ) { [×] 2..n }
say 5!; # 120
Because it is so easy to add operators. Operators only do one thing.
On Sat, Jan 18, 2020, 3:39 PM ToddAndMargo via perl6-users <
perl6-us...@perl.org> wrote:
>
> 4) infix:<+> means you can call it as a sub that
> gives you back the wrong answer.
>
> $c = +($a, $b)
> $c = +^($a, $b)
>
You left off the infix:<> part of the sub's name.
Hi Todd,
I would suggest reading https://docs.raku.org/language/optut.
For a slightly more thorough read
https://docs.raku.org/language/functions#Defining_operators.
On Sat, Jan 18, 2020 at 10:39 PM ToddAndMargo via perl6-users <
perl6-us...@perl.org> wrote:
> Hi All,
>
> Okay, I clearly do not
Hi All,
Okay, I clearly do not understand what is
going on with these definitions, so please
correct my assumptions!
https://docs.raku.org/language/operators#infix_+
https://docs.raku.org/routine/+$CIRCUMFLEX_ACCENT
Question: would some kind soul please tell me how:
multi sub
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