1 #include <float.h>
2 #include <math.h>
3 #include <stdio.h>
4 #include <string.h>
5
6 static int
do_test(void)7 do_test (void)
8 {
9 #if LDBL_MANT_DIG >= 106
10 volatile union { long double l; long long x[2]; } u, v;
11 char buf[64];
12 #endif
13 int result = 0;
14
15 #if LDBL_MANT_DIG == 106 || LDBL_MANT_DIG == 113
16 # define COMPARE_LDBL(u, v) \
17 ((u).l == (v).l && (u).x[0] == (v).x[0] && (u).x[1] == (v).x[1])
18 #else
19 # define COMPARE_LDBL(u, v) ((u).l == (v).l)
20 #endif
21
22 #define TEST(val) \
23 do \
24 { \
25 u.l = (val); \
26 snprintf (buf, sizeof buf, "%LaL", u.l); \
27 if (strcmp (buf, #val) != 0) \
28 { \
29 printf ("Error on line %d: %s != %s\n", __LINE__, buf, #val); \
30 result = 1; \
31 } \
32 if (sscanf (#val, "%La", &v.l) != 1 || !COMPARE_LDBL (u, v)) \
33 { \
34 printf ("Error sscanf on line %d: %La != %La\n", __LINE__, \
35 u.l, v.l); \
36 result = 1; \
37 } \
38 /* printf ("%s %La %016Lx %016Lx\n", #val, u.l, u.x[0], u.x[1]); */ \
39 } \
40 while (0)
41
42 #if LDBL_MANT_DIG >= 106
43 # if LDBL_MANT_DIG == 106
44 TEST (0x0.ffffffffffffp-1022L);
45 TEST (0x0.ffffffffffff1p-1022L);
46 TEST (0x0.fffffffffffffp-1022L);
47 # endif
48 TEST (0x1p-1022L);
49 TEST (0x1.0000000000001p-1022L);
50 TEST (0x1.00000000001e7p-1022L);
51 TEST (0x1.fffffffffffffp-1022L);
52 TEST (0x1p-1021L);
53 TEST (0x1.00000000000008p-1021L);
54 TEST (0x1.0000000000001p-1021L);
55 TEST (0x1.00000000000018p-1021L);
56 TEST (0x1.0000000000000f8p-1017L);
57 TEST (0x1.0000000000001p-1017L);
58 TEST (0x1.000000000000108p-1017L);
59 TEST (0x1.000000000000dcf8p-1013L);
60 TEST (0x1.000000000000ddp-1013L);
61 TEST (0x1.000000000000dd08p-1013L);
62 TEST (0x1.ffffffffffffffffffffffffffp-1L);
63 TEST (0x1.ffffffffffffffffffffffffff8p-1L);
64 TEST (0x1p+0L);
65 TEST (0x1.000000000000000000000000008p+0L);
66 TEST (0x1.00000000000000000000000001p+0L);
67 TEST (0x1.000000000000000000000000018p+0L);
68 TEST (0x1.23456789abcdef123456789abc8p+0L);
69 TEST (0x1.23456789abcde7123456789abc8p+0L);
70 TEST (0x1.23456789abcdef123456789abc8p+64L);
71 TEST (0x1.23456789abcde7123456789abc8p+64L);
72 TEST (0x1.123456789abcdef123456789p-969L);
73 # if LDBL_MANT_DIG == 106
74 TEST (-0x1.2d71957cc1263bbbeb1d365f1e8p-969L);
75 TEST (0x1.23456789abcdef0123456789abp-970L);
76 TEST (0x1.579bde02468acp-1001L);
77 TEST (0x0.abcdef0123456p-1022L);
78 TEST (0x1.abcdef0123456p-1022L);
79 TEST (0x1.abcdef012345678p-1014L);
80 TEST (0x1.abcdef0123456f8p-1014L);
81 # endif
82 #endif
83 return result;
84 }
85
86 #define TEST_FUNCTION do_test ()
87 #include "../test-skeleton.c"
88