16 PLT 3x hash utilities

(require (planet untyped/unlib/hash-table))

Useful hash utilities. These procedures are compatible with the PLT 3 / mzscheme language procedure names for hashes.

(make-hash-table/pairs data ...) → hash-table?

data : pair

Creates a hash table from the supplied data. The result has strong keys and uses equal? as a key comparison function.

(hash-table-mapped? hash key) → boolean?

hash : hash?

key : any

Returns #t if key is stored in hash, #f otherwise.

(hash-table-keys hash) → list?

hash : hash?

Returns a (randomly ordered) list of the keys stored in hash.

(hash-table-values hash) → list?

hash : hash?

Returns a (randomly ordered) list of the values stored in hash.

1	Changes in Unlib 4.x
2	Bytes utilities
3	Write-through cache
4	Contract utilities
5	CRC checksums
6	Time-zone-aware date utilities
7	Debugging tools
8	Enumerations (deprecated)
9	Enumerations (revised)
10	Exception utilities
11	File and path utilities
12	for variants
13	Generators
14	Generators (short names)
15	PLT 4x hash utilities
16	PLT 3x hash utilities
17	Keyword utilities
18	Logging utilities
19	List utilities
20	Match utilities
21	Number utilities
22	Parameter utilities
23	Pipelines
24	Profiling tools
25	Require utilities
26	Scribble utilities
27	String utilities
28	Symbol utilities
29	Syntax utilities
30	SRFI19 time utilities
31	URL utilities
32	Yieldable procedures
33	Acknowledgements