char_array<-ensure_suffix

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char_array<-ensure_suffix

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char_array <-ensure_suffix: suffix=char_array -> char_array

If the receiving char_array object already has suffix, just return it, otherwise return a copy with the suffix char_array<-append’ed. Examples:

?- get(hello, ensure_suffix, '.pl', X).
?- get('hello.pl', ensure_suffix, '.pl', X).

both yield hello.pl.