1Bool(3)                          OCaml library                         Bool(3)
2
3
4

NAME

6       Bool - Boolean values.
7

Module

9       Module   Bool
10

Documentation

12       Module Bool
13        : sig end
14
15
16       Boolean values.
17
18
19       Since 4.08
20
21
22
23
24
25
26
27   Booleans
28       type t = bool =
29        | false
30        | true
31
32
33       The type of booleans (truth values).
34
35       The  constructors  false  and  true are included here so that they have
36       paths, but they are not intended to be used in user-defined data types.
37
38
39
40       val not : bool -> bool
41
42
43       not b is the boolean negation of b .
44
45
46
47       val (&&) : bool -> bool -> bool
48
49
50       e0 && e1 is the lazy boolean conjunction of expressions e0 and e1 .  If
51       e0 evaluates to false , e1 is not evaluated. Right-associative operator
52       at precedence level 3/11.
53
54
55
56       val (||) : bool -> bool -> bool
57
58
59       e0 || e1 is the lazy boolean disjunction of expressions e0 and e1 .  If
60       e0  evaluates to true , e1 is not evaluated. Right-associative operator
61       at precedence level 2/11.
62
63
64
65
66   Predicates and comparisons
67       val equal : bool -> bool -> bool
68
69
70       equal b0 b1 is true if and only if b0 and b1  are  both  true  or  both
71       false .
72
73
74
75       val compare : bool -> bool -> int
76
77
78       compare  b0  b1  is  a total order on boolean values.  false is smaller
79       than true .
80
81
82
83
84   Converting
85       val to_int : bool -> int
86
87
88       to_int b is 0 if b is false and 1 if b is true .
89
90
91
92       val to_float : bool -> float
93
94
95       to_float b is 0.  if b is false and 1.  if b is true .
96
97
98
99       val to_string : bool -> string
100
101
102       to_string b is "true" if b is true and "false" if b is false .
103
104
105
106
107
108OCamldoc                          2023-01-23                           Bool(3)