1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
const cmp = @import("cmp.zig");
const testing = @import("std").testing;
fn test__cmpsi2(a: i32, b: i32, expected: i32) !void {
const result = cmp.__cmpsi2(a, b);
try testing.expectEqual(expected, result);
}
test "cmpsi2" {
// minInt == -2147483648
// maxInt == 2147483647
// minInt/2 == -1073741824
// maxInt/2 == 1073741823
// 1. equality minInt, minInt+1, minInt/2, -1, 0, 1, maxInt/2, maxInt-1, maxInt
try test__cmpsi2(-2147483648, -2147483648, 1);
try test__cmpsi2(-2147483647, -2147483647, 1);
try test__cmpsi2(-1073741824, -1073741824, 1);
try test__cmpsi2(-1, -1, 1);
try test__cmpsi2(0, 0, 1);
try test__cmpsi2(1, 1, 1);
try test__cmpsi2(1073741823, 1073741823, 1);
try test__cmpsi2(2147483646, 2147483646, 1);
try test__cmpsi2(2147483647, 2147483647, 1);
// 2. cmp minInt, { minInt + 1, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
try test__cmpsi2(-2147483648, -2147483647, 0);
try test__cmpsi2(-2147483648, -1073741824, 0);
try test__cmpsi2(-2147483648, -1, 0);
try test__cmpsi2(-2147483648, 0, 0);
try test__cmpsi2(-2147483648, 1, 0);
try test__cmpsi2(-2147483648, 1073741823, 0);
try test__cmpsi2(-2147483648, 2147483646, 0);
try test__cmpsi2(-2147483648, 2147483647, 0);
// 3. cmp minInt+1, {minInt, minInt/2, -1,0,1, maxInt/2, maxInt-1, maxInt}
try test__cmpsi2(-2147483647, -2147483648, 2);
try test__cmpsi2(-2147483647, -1073741824, 0);
try test__cmpsi2(-2147483647, -1, 0);
try test__cmpsi2(-2147483647, 0, 0);
try test__cmpsi2(-2147483647, 1, 0);
try test__cmpsi2(-2147483647, 1073741823, 0);
try test__cmpsi2(-2147483647, 2147483646, 0);
try test__cmpsi2(-2147483647, 2147483647, 0);
// 4. cmp minInt/2, {minInt, minInt + 1, -1,0,1, maxInt/2, maxInt-1, maxInt}
try test__cmpsi2(-1073741824, -2147483648, 2);
try test__cmpsi2(-1073741824, -2147483647, 2);
try test__cmpsi2(-1073741824, -1, 0);
try test__cmpsi2(-1073741824, 0, 0);
try test__cmpsi2(-1073741824, 1, 0);
try test__cmpsi2(-1073741824, 1073741823, 0);
try test__cmpsi2(-1073741824, 2147483646, 0);
try test__cmpsi2(-1073741824, 2147483647, 0);
// 5. cmp -1, {minInt, minInt + 1, minInt/2, 0,1, maxInt/2, maxInt-1, maxInt}
try test__cmpsi2(-1, -2147483648, 2);
try test__cmpsi2(-1, -2147483647, 2);
try test__cmpsi2(-1, -1073741824, 2);
try test__cmpsi2(-1, 0, 0);
try test__cmpsi2(-1, 1, 0);
try test__cmpsi2(-1, 1073741823, 0);
try test__cmpsi2(-1, 2147483646, 0);
try test__cmpsi2(-1, 2147483647, 0);
// 6. cmp 0, {minInt, minInt + 1, minInt/2, -1, 1, maxInt/2, maxInt-1, maxInt}
try test__cmpsi2(0, -2147483648, 2);
try test__cmpsi2(0, -2147483647, 2);
try test__cmpsi2(0, -1073741824, 2);
try test__cmpsi2(0, -1, 2);
try test__cmpsi2(0, 1, 0);
try test__cmpsi2(0, 1073741823, 0);
try test__cmpsi2(0, 2147483646, 0);
try test__cmpsi2(0, 2147483647, 0);
// 7. cmp 1, {minInt, minInt + 1, minInt/2, -1,0, maxInt/2, maxInt-1, maxInt}
try test__cmpsi2(1, -2147483648, 2);
try test__cmpsi2(1, -2147483647, 2);
try test__cmpsi2(1, -1073741824, 2);
try test__cmpsi2(1, -1, 2);
try test__cmpsi2(1, 0, 2);
try test__cmpsi2(1, 1073741823, 0);
try test__cmpsi2(1, 2147483646, 0);
try test__cmpsi2(1, 2147483647, 0);
// 8. cmp maxInt/2, {minInt, minInt + 1, minInt/2, -1, 0, 1, maxInt-1, maxInt}
try test__cmpsi2(1073741823, -2147483648, 2);
try test__cmpsi2(1073741823, -2147483647, 2);
try test__cmpsi2(1073741823, -1073741824, 2);
try test__cmpsi2(1073741823, -1, 2);
try test__cmpsi2(1073741823, 0, 2);
try test__cmpsi2(1073741823, 1, 2);
try test__cmpsi2(1073741823, 2147483646, 0);
try test__cmpsi2(1073741823, 2147483647, 0);
// 9. cmp maxInt-1, {minInt, minInt + 1, minInt/2, -1, 0, 1, maxInt/2, maxInt}
try test__cmpsi2(2147483646, -2147483648, 2);
try test__cmpsi2(2147483646, -2147483647, 2);
try test__cmpsi2(2147483646, -1073741824, 2);
try test__cmpsi2(2147483646, -1, 2);
try test__cmpsi2(2147483646, 0, 2);
try test__cmpsi2(2147483646, 1, 2);
try test__cmpsi2(2147483646, 1073741823, 2);
try test__cmpsi2(2147483646, 2147483647, 0);
// 10.cmp maxInt, {minInt, minInt + 1, minInt/2, -1, 0, 1, maxInt/2, maxInt-1, }
try test__cmpsi2(2147483647, -2147483648, 2);
try test__cmpsi2(2147483647, -2147483647, 2);
try test__cmpsi2(2147483647, -1073741824, 2);
try test__cmpsi2(2147483647, -1, 2);
try test__cmpsi2(2147483647, 0, 2);
try test__cmpsi2(2147483647, 1, 2);
try test__cmpsi2(2147483647, 1073741823, 2);
try test__cmpsi2(2147483647, 2147483646, 2);
}
|
