trunctfdf2_test.c revision 1.1.1.1 
1//===-------------- trunctfdf2_test.c - Test __trunctfdf2 -----------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file tests __trunctfdf2 for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include <stdio.h>
15
16#if __LDBL_MANT_DIG__ == 113
17
18#include "fp_test.h"
19
20double __trunctfdf2(long double a);
21
22int test__trunctfdf2(long double a, uint64_t expected)
23{
24    double x = __trunctfdf2(a);
25    int ret = compareResultD(x, expected);
26
27    if (ret)
28    {
29        printf("error in test__trunctfdf2(%.20Lf) = %lf, "
30               "expected %lf\n", a, x, fromRep64(expected));
31    }
32    return ret;
33}
34
35char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
36
37#endif
38
39int main()
40{
41#if __LDBL_MANT_DIG__ == 113
42    // qNaN
43    if (test__trunctfdf2(makeQNaN128(),
44                         UINT64_C(0x7ff8000000000000)))
45        return 1;
46    // NaN
47    if (test__trunctfdf2(makeNaN128(UINT64_C(0x810000000000)),
48                         UINT64_C(0x7ff8100000000000)))
49        return 1;
50    // inf
51    if (test__trunctfdf2(makeInf128(),
52                         UINT64_C(0x7ff0000000000000)))
53        return 1;
54    // zero
55    if (test__trunctfdf2(0.0L, UINT64_C(0x0)))
56        return 1;
57
58    if (test__trunctfdf2(0x1.af23456789bbaaab347645365cdep+5L,
59                         UINT64_C(0x404af23456789bbb)))
60        return 1;
61    if (test__trunctfdf2(0x1.dedafcff354b6ae9758763545432p-9L,
62                         UINT64_C(0x3f6dedafcff354b7)))
63        return 1;
64    if (test__trunctfdf2(0x1.2f34dd5f437e849b4baab754cdefp+4534L,
65                         UINT64_C(0x7ff0000000000000)))
66        return 1;
67    if (test__trunctfdf2(0x1.edcbff8ad76ab5bf46463233214fp-435L,
68                         UINT64_C(0x24cedcbff8ad76ab)))
69        return 1;
70
71#else
72    printf("skipped\n");
73
74#endif
75    return 0;
76}
77