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scryer-prolog/src
Markus Triska 237c855f10 ADDED: group_pairs_by_key/2
Pairs must be keysorted and may also contain variables as keys.

Examples:

    ?-  group_pairs_by_key([1-a,1-b,2-c], Ps).
       Ps = [1-[a,b],2-[c]].

    ?-  group_pairs_by_key([X-a,X-b,2-c], Ps).
       Ps = [X-[a,b],2-[c]].
2020-04-14 00:10:33 +02:00
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2020-04-14 00:10:33 +02:00