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Major cell search: Difference between revisions
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Roger didn't add support to set functions
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== History == | == History == | ||
Major cell searching is supported for all relevant primitives in [[A+]] and [[J]]. | Major cell searching is supported for all relevant primitives in [[A+]] and [[J]]. Some support was added to [[Dyalog APL]] under the direction of J implementer [[Roger Hui]] in 2014. The more recent array languages [[BQN]] and [[Uiua]] also define search functions to work on major cells. | ||
[[Index Of]] searching major cells was added to [[Dyalog APL 14.0]] in 2014, and [[Interval Index]] also featured the extension when it was included in [[Dyalog APL 16.0]]. Several other APL dialects have extended Index Of in ways that are incompatible with major cell searching: in [[SHARP APL]] it has [[function rank]] <syntaxhighlight lang=apl inline>1 0</syntaxhighlight> (while major cell searching would imply a function rank that depends on the rank of the left argument), and in [[GNU APL]] and [[NARS2000]] elements are searched to give a multi-dimensional index. NARS2000 defines dyadic <syntaxhighlight lang=apl inline>⍸</syntaxhighlight>, called Array Lookup, to provide Index Of on cells. | [[Index Of]] searching major cells was added to [[Dyalog APL 14.0]] in 2014, and [[Interval Index]] also featured the extension when it was included in [[Dyalog APL 16.0]]. Several other APL dialects have extended Index Of in ways that are incompatible with major cell searching: in [[SHARP APL]] it has [[function rank]] <syntaxhighlight lang=apl inline>1 0</syntaxhighlight> (while major cell searching would imply a function rank that depends on the rank of the left argument), and in [[GNU APL]] and [[NARS2000]] elements are searched to give a multi-dimensional index. NARS2000 defines dyadic <syntaxhighlight lang=apl inline>⍸</syntaxhighlight>, called Array Lookup, to provide Index Of on cells. | ||