13 Functions

5.3.6

This library is unstable; compatibility will not be maintained. See Unstable: May Change Without Warning for more information.

This module provides tools for higher-order programming and creating functions.

procedure
((conjoin f ...) x ...) → boolean?
f : (-> A ... boolean?)
x : A

Combines calls to each function with and. Equivalent to (and (f x ...) ...)

Examples:

(define f (conjoin exact? integer?))

> (f 1)
#t
> (f 1.0)
#f
> (f 1/2)
#f
> (f 0.5)
#f

procedure
((disjoin f ...) x ...) → boolean?
f : (-> A ... boolean?)
x : A

Combines calls to each function with or. Equivalent to (or (f x ...) ...)

Examples:

(define f (disjoin exact? integer?))

> (f 1)
#t
> (f 1.0)
#t
> (f 1/2)
#t
> (f 0.5)
#f

1	Guidelines for Developing unstable Libraries
2	Automata: Compiling State Machines
3	Bytes
4	Contracts
5	Contracts for Macro Subexpressions
6	Debugging
7	Definitions
8	Errors
9	Filesystem
10	Find
11	Flonums
12	Futures
13	Functions
14	Hash Tables
15	Interface-Oriented Programming for Classes
16	Lazy Require
17	Lists
18	Logging
19	Macro Testing
20	Mark Parameters
21	Match
22	Open place expressions
23	Options
24	Parameter Groups
25	Pretty-Printing
26	Re-Contracting Identifiers
27	Sandbox
28	Sequences
29	Strings
30	Structs
31	Struct Printing
32	Syntax
33	Temporal Contracts: Explicit Contract Monitors
34	Unix Domain Sockets
35	2D Syntax
36	GUI Libraries