Author: moritz
Date: 2009-10-04 19:15:43 +0200 (Sun, 04 Oct 2009)
New Revision: 28596
Modified:
docs/Perl6/Spec/S03-operators.pod
Log:
[S03] be more consequent in removing :by
Modified: docs/Perl6/Spec/S03-operators.pod
===================================================================
--- docs/Perl6/Spec/S03-operators.pod 2009-10-04 17:15:29 UTC (rev 28595)
+++ docs/Perl6/Spec/S03-operators.pod 2009-10-04 17:15:43 UTC (rev 28596)
@@ -678,7 +678,7 @@
^$limit
-Constructs a range of C<0 ..^ $limit> or locates a metaclass as a shortcut
+Constructs a range of C<0 ..^ +$limit> or locates a metaclass as a shortcut
for C<$limit.HOW>. See L</Range and RangeIterator semantics>.
=back
@@ -3109,7 +3109,7 @@
Smart matching against a C<Range> object smartmatches the
endpoints in the domain of the object being matched, so fractional
-numbers are C<not> truncated before comparison to integer ranges:
+numbers are I<not> truncated before comparison to integer ranges:
1.5 ~~ 1^..^2 # true, equivalent to 1 < 1.5 < 2
2.1 ~~ 1..2 # false, equivalent to 1 <= 2.1 <= 2
@@ -3141,10 +3141,6 @@
for ^4 { say $_ } # 0, 1, 2, 3
-or with :by
-
- for ^4 :by(0.5) { say $_ } # 0, 0.5, 1.5, 2.0, 2.5, 3.0, 3.5
-
If applied to a type name, it indicates the metaclass instance instead,
so C<^Moose> is short for C<HOW(Moose)> or C<Moose.HOW>. It still kinda
means "what is this thing's domain" in an abstract sort of way.
@@ -3171,15 +3167,7 @@
In other words, operators of numeric and other ordered types are
generally overloaded to do something sensible on C<Range> objects.
-In particular, multiplicative operators not only multiply the endpoints
-but also the "by" of the C<Range> object:
- (1..11:by(2)) * 5 # same as 5..55:by(10)
- 5,15,25,35,45,45,55
-
-Conjecture: non-linear functions might even produce non-uniform "by" values!
-Think of log scaling, for instance.
-
=back
=head1 Chained comparisons
