2 * Copyright (c) 2005 David Schultz <das@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * Test for lround(), lroundf(), llround(), and llroundf().
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
40 #define test(func, x, result, excepts) do { \
41 assert(feclearexcept(FE_ALL_EXCEPT) == 0); \
42 assert((func)(x) == (result) || fetestexcept(FE_INVALID)); \
43 assert(fetestexcept(FE_ALL_EXCEPT) == (excepts)); \
46 #define testall(x, result, excepts) do { \
47 test(lround, x, result, excepts); \
48 test(lroundf, x, result, excepts); \
49 test(llround, x, result, excepts); \
50 test(llroundf, x, result, excepts); \
55 #pragma STDC FENV_ACCESS ON
58 main(int argc, char *argv[])
64 testall(0.25, 0, FE_INEXACT);
65 testall(0.5, 1, FE_INEXACT);
66 testall(-0.5, -1, FE_INEXACT);
68 testall(0x12345000p0, 0x12345000, 0);
69 testall(0x1234.fp0, 0x1235, FE_INEXACT);
70 testall(INFINITY, IGNORE, FE_INVALID);
71 testall(NAN, IGNORE, FE_INVALID);
73 #if (LONG_MAX == 0x7fffffffl)
74 test(lround, 0x7fffffff.8p0, IGNORE, FE_INVALID);
75 test(lround, -0x80000000.8p0, IGNORE, FE_INVALID);
76 test(lround, 0x80000000.0p0, IGNORE, FE_INVALID);
77 test(lround, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT);
78 test(lround, -0x80000000.4p0, -0x80000000l, FE_INEXACT);
79 test(lroundf, 0x80000000.0p0f, IGNORE, FE_INVALID);
80 test(lroundf, 0x7fffff80.0p0f, 0x7fffff80l, 0);
81 #elif (LONG_MAX == 0x7fffffffffffffffll)
82 test(lround, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
83 test(lroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
84 test(lround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0);
85 test(lroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0);
86 test(lround, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
87 test(lroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
88 test(lround, -0x8000000000000000.0p0, -0x8000000000000000l, 0);
89 test(lroundf, -0x8000000000000000.0p0f, -0x8000000000000000l, 0);
91 #error "Unsupported long size"
94 #if (LLONG_MAX == 0x7fffffffffffffffLL)
95 test(llround, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
96 test(llroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
97 test(llround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0);
98 test(llroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0);
99 test(llround, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
100 test(llroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
101 test(llround, -0x8000000000000000.0p0, -0x8000000000000000ll, 0);
102 test(llroundf, -0x8000000000000000.0p0f, -0x8000000000000000ll, 0);
104 #error "Unsupported long long size"
107 printf("ok 1 - lround\n");