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 lrint(), lrintf(), llrint(), and llrintf().
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(lrint, x, result, excepts); \
48 test(lrintf, x, result, excepts); \
49 test(llrint, x, result, excepts); \
50 test(llrintf, x, result, excepts); \
55 #pragma STDC FENV_ACCESS ON
58 main(int argc, char *argv[])
63 assert(fesetround(FE_DOWNWARD) == 0);
64 testall(0.75, 0, FE_INEXACT);
65 testall(-0.5, -1, FE_INEXACT);
67 assert(fesetround(FE_TONEAREST) == 0);
69 testall(0.25, 0, FE_INEXACT);
70 testall(0.5, 0, FE_INEXACT);
71 testall(-2.5, -2, FE_INEXACT);
73 testall(0x12345000p0, 0x12345000, 0);
74 testall(0x1234.fp0, 0x1235, FE_INEXACT);
75 testall(INFINITY, IGNORE, FE_INVALID);
76 testall(NAN, IGNORE, FE_INVALID);
78 #if (LONG_MAX == 0x7fffffffl)
79 assert(fesetround(FE_UPWARD) == 0);
80 test(lrint, 0x7fffffff.8p0, IGNORE, FE_INVALID);
81 test(lrint, -0x80000000.4p0, -0x80000000l, FE_INEXACT);
83 assert(fesetround(FE_DOWNWARD) == 0);
84 test(lrint, -0x80000000.8p0, IGNORE, FE_INVALID);
85 test(lrint, 0x80000000.0p0, IGNORE, FE_INVALID);
86 test(lrint, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT);
87 test(lrintf, 0x80000000.0p0f, IGNORE, FE_INVALID);
88 test(lrintf, 0x7fffff80.0p0f, 0x7fffff80l, 0);
90 assert(fesetround(FE_TOWARDZERO) == 0);
91 test(lrint, 0x7fffffff.8p0, 0x7fffffffl, FE_INEXACT);
92 test(lrint, -0x80000000.8p0, -0x80000000l, FE_INEXACT);
93 test(lrint, 0x80000000.0p0, IGNORE, FE_INVALID);
94 test(lrintf, 0x80000000.0p0f, IGNORE, FE_INVALID);
95 test(lrintf, 0x7fffff80.0p0f, 0x7fffff80l, 0);
96 #elif (LONG_MAX == 0x7fffffffffffffffll)
97 assert(fesetround(FE_TONEAREST) == 0);
98 test(lrint, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
99 test(lrintf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
100 test(lrint, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0);
101 test(lrintf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0);
102 test(lrint, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
103 test(lrintf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
104 test(lrint, -0x8000000000000000.0p0, -0x8000000000000000l, 0);
105 test(lrintf, -0x8000000000000000.0p0f, -0x8000000000000000l, 0);
107 #error "Unsupported long size"
110 #if (LLONG_MAX == 0x7fffffffffffffffLL)
111 assert(fesetround(FE_TONEAREST) == 0);
112 test(llrint, 0x8000000000000000.0p0, IGNORE, FE_INVALID);
113 test(llrintf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID);
114 test(llrint, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0);
115 test(llrintf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0);
116 test(llrint, -0x8000000000000800.0p0, IGNORE, FE_INVALID);
117 test(llrintf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID);
118 test(llrint, -0x8000000000000000.0p0, -0x8000000000000000ll, 0);
119 test(llrintf, -0x8000000000000000.0p0f, -0x8000000000000000ll, 0);
121 #error "Unsupported long long size"
124 printf("ok 1 - lrint\n");