SWI-Prolog -- dicts_to_same_keys/3

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SWI-Prolog owl logo Predicate dicts_to_same_keys/3

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Documentation
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  - The SWI-Prolog library
    - library(dicts): Dict utilities
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Availability::- use_module(library(dicts)).(can be autoloaded)

Source dicts_to_same_keys(+DictsIn, :OnEmpty, -DictsOut)

DictsOut is a copy of DictsIn, where each dict contains all keys appearing in all dicts of DictsIn. Values for keys that are added to a dict are produced by calling OnEmpty as below. The predicate dict_fill/4 provides an implementation that fills all new cells with a predefined value.

call(:OnEmpty, +Key, +Dict, -Value)

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