Author: colomon Date: 2010-04-27 01:51:12 +0200 (Tue, 27 Apr 2010) New Revision: 30480
Modified: docs/Perl6/Spec/S32-setting-library/Containers.pod Log: [Spec] Add .minmax method along the lines of the .min and .max methods. Modified: docs/Perl6/Spec/S32-setting-library/Containers.pod =================================================================== --- docs/Perl6/Spec/S32-setting-library/Containers.pod 2010-04-26 23:20:02 UTC (rev 30479) +++ docs/Perl6/Spec/S32-setting-library/Containers.pod 2010-04-26 23:51:12 UTC (rev 30480) @@ -378,6 +378,30 @@ For a C<max> function that does not require an ordering, see the C<[max]> reduction operator. +=item minmax + + our multi method minmax( @values: *&by ) + our multi method minmax( @values: Ordering @by ) + our multi method minmax( @values: Ordering $by = &infix:<cmp> ) + + our multi minmax( Ordering @by, *...@values ) + our multi minmax( Ordering $by, *...@values ) + +Returns the earliest (i.e., lowest index) minimum and maximum elements +of C<@values> , using criteria C<$by> or C<@by> for +comparisons. C<@by> differs from C<$by> in that each criterion +is applied, in order, until a non-zero (tie) result is achieved. + +C<Ordering> is as described in L<"Type Declarations">. Any +C<Ordering> may receive the mixin C<canonicalized(Code $how)> to +adjust the case, sign, or other order sensitivity of C<cmp>. +(Mixins are applied to values using C<but>.) If a C<Signature> +is used as an C<Ordering> then sort-specific traits such as C<is +canonicalized($how)> are allowed on the positional elements. + +For a C<minmax> function that does not require an ordering, see the +C<[minmax]> reduction operator. + =item any our Junction multi method any( @values: )
