Procedures in this SRFI are drawn primarily from SRFI 69 and R6RS. In addition, the following sources are acknowledged:
hash-table-mutable?procedure and the second argument ofhash-table-copy(which allows the creation of immutable hash tables) are from R6RS, renamed in the style of this SRFI.hash-table-intern!procedure is from Racket, renamed in the style of this SRFI.hash-table-findprocedure is a modified version oftable-searchin Gambit.procedures
hash-table-unfoldandhash-table-countwere suggested by SRFI 1.procedures
hash-table=?andhash-table-mapwere suggested by Haskell'sData.Map.Strictmodule.procedure
hash-table-map->listis from Guile.
The procedures hash-table-empty?, hash-table-empty-copy, hash-table-pop!, hash-table-map!, hash-table-intersection!, hash-table-difference!, and hash-table-xor! were added for convenience and completeness.