This source file includes following definitions.
- main
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19 #include <config.h>
20
21 #include <ieee754.h>
22 #include <stdio.h>
23
24 static struct {
25 float x;
26 unsigned sign; unsigned exponent; unsigned frac;
27 } const float_tests[] =
28 {
29 {0, 0, 0, 0},
30 {-0.0, 1, 0, 0},
31 {0.1, 0, 0x7b, 0x4ccccd}
32 };
33
34 static struct {
35 double x;
36 unsigned sign; unsigned exponent; unsigned frac_hi; unsigned frac_lo;
37 } const double_tests[] =
38 {
39 {0, 0, 0, 0},
40 {-0.0, 1, 0, 0 },
41 {0.1, 0, 0x3fb, 0x99999, 0x9999999a}
42 };
43
44 int
45 main (void)
46 {
47 int i;
48
49 for (i = 0; i < sizeof float_tests / sizeof *float_tests; i++)
50 {
51 union ieee754_float u;
52 u.f = float_tests[i].x;
53 if (float_tests[i].sign != u.ieee.negative)
54 return 1;
55 if (float_tests[i].exponent != u.ieee.exponent)
56 return 2;
57 if (float_tests[i].frac != u.ieee.mantissa)
58 return 3;
59 }
60
61 for (i = 0; i < sizeof double_tests / sizeof *double_tests; i++)
62 {
63 union ieee754_double u;
64 u.d = double_tests[i].x;
65 if (double_tests[i].sign != u.ieee.negative)
66 return 4;
67 if (double_tests[i].exponent != u.ieee.exponent)
68 return 5;
69 if (double_tests[i].frac_hi != u.ieee.mantissa0)
70 return 6;
71 if (double_tests[i].frac_lo != u.ieee.mantissa1)
72 return 7;
73 }
74
75 return 0;
76 }