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Diffstat (limited to 'lib/msun/tests/lround_test.c')
| -rw-r--r-- | lib/msun/tests/lround_test.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/lib/msun/tests/lround_test.c b/lib/msun/tests/lround_test.c new file mode 100644 index 000000000000..a61672617081 --- /dev/null +++ b/lib/msun/tests/lround_test.c @@ -0,0 +1,118 @@ +/*- + * Copyright (c) 2005 David Schultz <das@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Test for lround(), lroundf(), llround(), and llroundf(). + */ + +#include <sys/cdefs.h> +#include <fenv.h> +#include <limits.h> +#include <math.h> +#include <stdio.h> + +#include "test-utils.h" + +#define IGNORE 0x12345 + +#define test(func, x, result, excepts) do { \ + ATF_REQUIRE_EQ(0, feclearexcept(FE_ALL_EXCEPT)); \ + long long _r = (func)(x); \ + CHECK_FP_EXCEPTIONS_MSG(excepts, FE_ALL_EXCEPT, "for %s(%s)", \ + #func, #x); \ + if ((excepts & FE_INVALID) != 0) { \ + ATF_REQUIRE_EQ(result, IGNORE); \ + ATF_CHECK_EQ_MSG(FE_INVALID, fetestexcept(FE_INVALID), \ + "FE_INVALID not set correctly for %s(%s)", #func, #x); \ + } else { \ + ATF_REQUIRE_MSG(result != IGNORE, "Expected can't be IGNORE!"); \ + ATF_REQUIRE_EQ(result, (__STRING(func(_d)), _r)); \ + } \ +} while (0) + +#define testall(x, result, excepts) do { \ + test(lround, x, result, excepts); \ + test(lroundf, x, result, excepts); \ + test(llround, x, result, excepts); \ + test(llroundf, x, result, excepts); \ +} while (0) + +#pragma STDC FENV_ACCESS ON + +ATF_TC_WITHOUT_HEAD(main); +ATF_TC_BODY(main, tc) +{ + testall(0.0, 0, 0); + testall(0.25, 0, FE_INEXACT); + testall(0.5, 1, FE_INEXACT); + testall(-0.5, -1, FE_INEXACT); + testall(1.0, 1, 0); + testall(0x12345000p0, 0x12345000, 0); + testall(0x1234.fp0, 0x1235, FE_INEXACT); + testall(INFINITY, IGNORE, FE_INVALID); + testall(NAN, IGNORE, FE_INVALID); + +#if (LONG_MAX == 0x7fffffffl) + test(lround, 0x7fffffff.8p0, IGNORE, FE_INVALID); + test(lround, -0x80000000.8p0, IGNORE, FE_INVALID); + test(lround, 0x80000000.0p0, IGNORE, FE_INVALID); + test(lround, 0x7fffffff.4p0, 0x7fffffffl, FE_INEXACT); + test(lround, -0x80000000.4p0, -0x80000000l, FE_INEXACT); + test(lroundf, 0x80000000.0p0f, IGNORE, FE_INVALID); + test(lroundf, 0x7fffff80.0p0f, 0x7fffff80l, 0); +#elif (LONG_MAX == 0x7fffffffffffffffll) + test(lround, 0x8000000000000000.0p0, IGNORE, FE_INVALID); + test(lroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); + test(lround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00l, 0); + test(lroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000l, 0); + test(lround, -0x8000000000000800.0p0, IGNORE, FE_INVALID); + test(lroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); + test(lround, -0x8000000000000000.0p0, (long)-0x8000000000000000l, 0); + test(lroundf, -0x8000000000000000.0p0f, (long)-0x8000000000000000l, 0); +#else +#error "Unsupported long size" +#endif + +#if (LLONG_MAX == 0x7fffffffffffffffLL) + test(llround, 0x8000000000000000.0p0, IGNORE, FE_INVALID); + test(llroundf, 0x8000000000000000.0p0f, IGNORE, FE_INVALID); + test(llround, 0x7ffffffffffffc00.0p0, 0x7ffffffffffffc00ll, 0); + test(llroundf, 0x7fffff8000000000.0p0f, 0x7fffff8000000000ll, 0); + test(llround, -0x8000000000000800.0p0, IGNORE, FE_INVALID); + test(llroundf, -0x8000010000000000.0p0f, IGNORE, FE_INVALID); + test(llround, -0x8000000000000000.0p0, (long long)-0x8000000000000000ll, 0); + test(llroundf, -0x8000000000000000.0p0f, (long long)-0x8000000000000000ll, 0); +#else +#error "Unsupported long long size" +#endif +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, main); + + return (atf_no_error()); +} |