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
|
#include "../src/math.c"
#include "../src/testing.h"
static void
test_mul_size(void) {
test_start("mul_size()");
size_t val;
{
testing("zero values");
assert(mul_size(1U, 1U, &val) == 0);
assert(val == 1U);
test_ok();
}
{
testing("small values");
assert(mul_size(2U, 3U, &val) == 0);
assert(val == 6U);
assert(mul_size(10U, 10U, &val) == 0);
assert(val == 100U);
assert(mul_size(15U, 15U, &val) == 0);
assert(val == 225U);
test_ok();
}
{
testing("big values");
assert(mul_size(SIZE_MAX, 1U, &val) == 0);
assert(val == SIZE_MAX);
assert(mul_size(1U, SIZE_MAX, &val) == 0);
assert(val == SIZE_MAX);
assert(mul_size(SIZE_MAX / 2U, 2U, &val) == 0);
assert(val == SIZE_MAX - 1U);
test_ok();
}
{
testing("overflowing values");
val = 123U;
assert(mul_size(SIZE_MAX, 2U, &val) != 0);
assert(val == 123U);
assert(mul_size(3U, SIZE_MAX / 2U, &val) != 0);
assert(val == 123U);
test_ok();
}
}
int
main(void) {
test_mul_size();
return 0;
}
|
