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Pack dialect-ciao -- prolog/dialect/ciao/hiordlib.pl |
The following predicates are exported from this file while their implementation is defined in imported modules or non-module files loaded by this module.
foldl
family of predicates is defined as
follows, with V0 an initial value and V the final value of the
folding operation:
foldl(G, [X_11, ..., X_1n], [X_21, ..., X_2n], ..., [X_m1, ..., X_mn], V0, V) :- call(G, X_11, ..., X_m1, V0, V1), call(G, X_12, ..., X_m2, V1, V2), ... call(G, X_1n, ..., X_mn, V<n-1>, V).
No implementation for a corresponding foldr
is given. A foldr
implementation would consist in first calling reverse/2 on each of
the m input lists, then applying the appropriate foldl
. This is
actually more efficient than using a properly programmed-out
recursive algorithm that cannot be tail-call optimized.
The following predicates are exported, but not or incorrectly documented.