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-rw-r--r--contrib/netbsd-tests/lib/libm/t_ldexp.c480
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diff --git a/contrib/netbsd-tests/lib/libm/t_ldexp.c b/contrib/netbsd-tests/lib/libm/t_ldexp.c
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index 000000000000..eaf8a4bfdb18
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+++ b/contrib/netbsd-tests/lib/libm/t_ldexp.c
@@ -0,0 +1,480 @@
+/* $NetBSD: t_ldexp.c,v 1.14 2014/11/04 00:20:19 justin Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_ldexp.c,v 1.14 2014/11/04 00:20:19 justin Exp $");
+
+#include <sys/param.h>
+
+#include <atf-c.h>
+
+#include <math.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#define SKIP 9999
+#define FORMAT "%23.23lg"
+
+static const int exps[] = { 0, 1, -1, 100, -100 };
+
+struct ldexp_test {
+ double x;
+ int exp1;
+ int exp2;
+ const char *result;
+};
+
+struct ldexp_test ldexp_basic[] = {
+ { 1.0, 5, SKIP, " 32" },
+ { 1.0, 1022, SKIP, "4.4942328371557897693233e+307" },
+ { 1.0, 1023, -1, "4.4942328371557897693233e+307" },
+ { 1.0, 1023, SKIP, "8.9884656743115795386465e+307" },
+ { 1.0, 1022, 1, "8.9884656743115795386465e+307" },
+ { 1.0, -1022, 2045, "8.9884656743115795386465e+307" },
+ { 1.0, -5, SKIP, " 0.03125" },
+ { 1.0, -1021, SKIP, "4.4501477170144027661805e-308" },
+ { 1.0, -1022, 1, "4.4501477170144027661805e-308" },
+ { 1.0, -1022, SKIP, "2.2250738585072013830902e-308" },
+ { 1.0, -1021, -1, "2.2250738585072013830902e-308" },
+ { 1.0, 1023, -2045, "2.2250738585072013830902e-308" },
+ { 1.0, 1023, -1023, " 1" },
+ { 1.0, -1022, 1022, " 1" },
+ { 0, 0, 0, NULL }
+};
+
+struct ldexp_test ldexp_zero[] = {
+ { 0.0, -1, SKIP, " 0" },
+ { 0.0, 0, SKIP, " 0" },
+ { 0.0, 1, SKIP, " 0" },
+ { 0.0, 1024, SKIP, " 0" },
+ { 0.0, 1025, SKIP, " 0" },
+ { 0.0, -1023, SKIP, " 0" },
+ { 0.0, -1024, SKIP, " 0" },
+ { 0, 0, 0, NULL }
+};
+
+struct ldexp_test ldexp_infinity[] = {
+ { 1.0, 1024, -1, " inf" },
+ { 1.0, 1024, 0, " inf" },
+ { 1.0, 1024, 1, " inf" },
+ { -1.0, 1024, -1, " -inf" },
+ { -1.0, 1024, 0, " -inf" },
+ { -1.0, 1024, 1, " -inf" },
+ { 0, 0, 0, NULL }
+};
+
+struct ldexp_test ldexp_overflow[] = {
+ { 1.0, 1024, SKIP, " inf" },
+ { 1.0, 1023, 1, " inf" },
+ { 1.0, -1022, 2046, " inf" },
+ { 1.0, 1025, SKIP, " inf" },
+ { -1.0, 1024, SKIP, " -inf" },
+ { -1.0, 1023, 1, " -inf" },
+ { -1.0, -1022, 2046, " -inf" },
+ { -1.0, 1025, SKIP, " -inf" },
+ { 0, 0, 0, NULL }
+};
+
+struct ldexp_test ldexp_denormal[] = {
+ { 1.0, -1023, SKIP, "1.1125369292536006915451e-308" },
+ { 1.0, -1022, -1, "1.1125369292536006915451e-308" },
+ { 1.0, 1023, -2046, "1.1125369292536006915451e-308" },
+ { 1.0, -1024, SKIP, "5.5626846462680034577256e-309" },
+ { 1.0, -1074, SKIP, "4.9406564584124654417657e-324" },
+ { -1.0, -1023, SKIP, "-1.1125369292536006915451e-308" },
+ { -1.0, -1022, -1, "-1.1125369292536006915451e-308" },
+ { -1.0, 1023, -2046, "-1.1125369292536006915451e-308" },
+ { -1.0, -1024, SKIP, "-5.5626846462680034577256e-309" },
+ { -1.0, -1074, SKIP, "-4.9406564584124654417657e-324" },
+ { 0, 0, 0, NULL }
+};
+
+struct ldexp_test ldexp_underflow[] = {
+ { 1.0, -1075, SKIP, " 0" },
+ { 1.0, -1074, -1, " 0" },
+ { 1.0, 1023, -2098, " 0" },
+ { 1.0, -1076, SKIP, " 0" },
+ { -1.0, -1075, SKIP, " -0" },
+ { -1.0, -1074, -1, " -0" },
+ { -1.0, 1023, -2098, " -0" },
+ { -1.0, -1076, SKIP, " -0" },
+ { 0, 0, 0, NULL }
+};
+
+struct ldexp_test ldexp_denormal_large[] = {
+ { 1.0, -1028, 1024, " 0.0625" },
+ { 1.0, -1028, 1025, " 0.125" },
+ { 1.0, -1028, 1026, " 0.25" },
+ { 1.0, -1028, 1027, " 0.5" },
+ { 1.0, -1028, 1028, " 1" },
+ { 1.0, -1028, 1029, " 2" },
+ { 1.0, -1028, 1030, " 4" },
+ { 1.0, -1028, 1040, " 4096" },
+ { 1.0, -1028, 1050, " 4194304" },
+ { 1.0, -1028, 1060, " 4294967296" },
+ { 1.0, -1028, 1100, " 4722366482869645213696" },
+ { 1.0, -1028, 1200, "5.9863107065073783529623e+51" },
+ { 1.0, -1028, 1300, "7.5885503602567541832791e+81" },
+ { 1.0, -1028, 1400, "9.6196304190416209014353e+111" },
+ { 1.0, -1028, 1500, "1.2194330274671844653834e+142" },
+ { 1.0, -1028, 1600, "1.5458150092069033378781e+172" },
+ { 1.0, -1028, 1700, "1.9595533242629369747791e+202" },
+ { 1.0, -1028, 1800, "2.4840289476811342962384e+232" },
+ { 1.0, -1028, 1900, "3.1488807865122869393369e+262" },
+ { 1.0, -1028, 2000, "3.9916806190694396233127e+292" },
+ { 1.0, -1028, 2046, "2.808895523222368605827e+306" },
+ { 1.0, -1028, 2047, "5.6177910464447372116541e+306" },
+ { 1.0, -1028, 2048, "1.1235582092889474423308e+307" },
+ { 1.0, -1028, 2049, "2.2471164185778948846616e+307" },
+ { 1.0, -1028, 2050, "4.4942328371557897693233e+307" },
+ { 1.0, -1028, 2051, "8.9884656743115795386465e+307" },
+ { 0, 0, 0, NULL }
+};
+
+static void
+run_test(struct ldexp_test *table)
+{
+ char outbuf[64];
+ size_t i;
+ double v;
+
+ for (i = 0; table->result != NULL; table++, i++) {
+
+ v = ldexp(table->x, table->exp1);
+
+ if (table->exp2 == SKIP)
+ continue;
+
+ v = ldexp(v, table->exp2);
+
+ (void)snprintf(outbuf, sizeof(outbuf), FORMAT, v);
+
+ ATF_CHECK_STREQ_MSG(table->result, outbuf,
+ "Entry %zu:\n\tExp: \"%s\"\n\tAct: \"%s\"",
+ i, table->result, outbuf);
+ }
+}
+
+/*
+ * ldexp(3)
+ */
+ATF_TC(ldexp_exp2);
+ATF_TC_HEAD(ldexp_exp2, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexp(x, n) == x * exp2(n)");
+}
+
+ATF_TC_BODY(ldexp_exp2, tc)
+{
+ const double n[] = { 1, 2, 3, 10, 50, 100 };
+#if __DBL_MIN_10_EXP__ <= -40
+ const double eps = 1.0e-40;
+#else
+ const double eps = __DBL_MIN__*4.0;
+#endif
+ const double x = 12.0;
+ double y;
+ size_t i;
+
+ for (i = 0; i < __arraycount(n); i++) {
+
+ y = ldexp(x, n[i]);
+
+ if (fabs(y - (x * exp2(n[i]))) > eps) {
+ atf_tc_fail_nonfatal("ldexp(%0.01f, %0.01f) "
+ "!= %0.01f * exp2(%0.01f)", x, n[i], x, n[i]);
+ }
+ }
+}
+
+ATF_TC(ldexp_nan);
+ATF_TC_HEAD(ldexp_nan, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexp(NaN) == NaN");
+}
+
+ATF_TC_BODY(ldexp_nan, tc)
+{
+ const double x = 0.0L / 0.0L;
+ double y;
+ size_t i;
+
+ ATF_REQUIRE(isnan(x) != 0);
+
+ for (i = 0; i < __arraycount(exps); i++) {
+ y = ldexp(x, exps[i]);
+ ATF_CHECK(isnan(y) != 0);
+ }
+}
+
+ATF_TC(ldexp_inf_neg);
+ATF_TC_HEAD(ldexp_inf_neg, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexp(-Inf) == -Inf");
+}
+
+ATF_TC_BODY(ldexp_inf_neg, tc)
+{
+ const double x = -1.0L / 0.0L;
+ size_t i;
+
+ for (i = 0; i < __arraycount(exps); i++)
+ ATF_CHECK(ldexp(x, exps[i]) == x);
+}
+
+ATF_TC(ldexp_inf_pos);
+ATF_TC_HEAD(ldexp_inf_pos, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexp(+Inf) == +Inf");
+}
+
+ATF_TC_BODY(ldexp_inf_pos, tc)
+{
+ const double x = 1.0L / 0.0L;
+ size_t i;
+
+ for (i = 0; i < __arraycount(exps); i++)
+ ATF_CHECK(ldexp(x, exps[i]) == x);
+}
+
+ATF_TC(ldexp_zero_neg);
+ATF_TC_HEAD(ldexp_zero_neg, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexp(-0.0) == -0.0");
+}
+
+ATF_TC_BODY(ldexp_zero_neg, tc)
+{
+ const double x = -0.0L;
+ double y;
+ size_t i;
+
+ ATF_REQUIRE(signbit(x) != 0);
+
+ for (i = 0; i < __arraycount(exps); i++) {
+ y = ldexp(x, exps[i]);
+ ATF_CHECK(x == y);
+ ATF_CHECK(signbit(y) != 0);
+ }
+}
+
+ATF_TC(ldexp_zero_pos);
+ATF_TC_HEAD(ldexp_zero_pos, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexp(+0.0) == +0.0");
+}
+
+ATF_TC_BODY(ldexp_zero_pos, tc)
+{
+ const double x = 0.0L;
+ double y;
+ size_t i;
+
+ ATF_REQUIRE(signbit(x) == 0);
+
+ for (i = 0; i < __arraycount(exps); i++) {
+ y = ldexp(x, exps[i]);
+ ATF_CHECK(x == y);
+ ATF_CHECK(signbit(y) == 0);
+ }
+}
+
+/*
+ * ldexpf(3)
+ */
+
+ATF_TC(ldexpf_exp2f);
+ATF_TC_HEAD(ldexpf_exp2f, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexpf(x, n) == x * exp2f(n)");
+}
+
+ATF_TC_BODY(ldexpf_exp2f, tc)
+{
+ const float n[] = { 1, 2, 3, 10, 50, 100 };
+ const float eps = 1.0e-9;
+ const float x = 12.0;
+ float y;
+ size_t i;
+
+ for (i = 0; i < __arraycount(n); i++) {
+
+ y = ldexpf(x, n[i]);
+
+ if (fabsf(y - (x * exp2f(n[i]))) > eps) {
+ atf_tc_fail_nonfatal("ldexpf(%0.01f, %0.01f) "
+ "!= %0.01f * exp2f(%0.01f)", x, n[i], x, n[i]);
+ }
+ }
+}
+
+ATF_TC(ldexpf_nan);
+ATF_TC_HEAD(ldexpf_nan, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexpf(NaN) == NaN");
+}
+
+ATF_TC_BODY(ldexpf_nan, tc)
+{
+ const float x = 0.0L / 0.0L;
+ float y;
+ size_t i;
+
+ ATF_REQUIRE(isnan(x) != 0);
+
+ for (i = 0; i < __arraycount(exps); i++) {
+ y = ldexpf(x, exps[i]);
+ ATF_CHECK(isnan(y) != 0);
+ }
+}
+
+ATF_TC(ldexpf_inf_neg);
+ATF_TC_HEAD(ldexpf_inf_neg, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexpf(-Inf) == -Inf");
+}
+
+ATF_TC_BODY(ldexpf_inf_neg, tc)
+{
+ const float x = -1.0L / 0.0L;
+ size_t i;
+
+ for (i = 0; i < __arraycount(exps); i++)
+ ATF_CHECK(ldexpf(x, exps[i]) == x);
+}
+
+ATF_TC(ldexpf_inf_pos);
+ATF_TC_HEAD(ldexpf_inf_pos, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexpf(+Inf) == +Inf");
+}
+
+ATF_TC_BODY(ldexpf_inf_pos, tc)
+{
+ const float x = 1.0L / 0.0L;
+ size_t i;
+
+ for (i = 0; i < __arraycount(exps); i++)
+ ATF_CHECK(ldexpf(x, exps[i]) == x);
+}
+
+ATF_TC(ldexpf_zero_neg);
+ATF_TC_HEAD(ldexpf_zero_neg, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexpf(-0.0) == -0.0");
+}
+
+ATF_TC_BODY(ldexpf_zero_neg, tc)
+{
+ const float x = -0.0L;
+ float y;
+ size_t i;
+
+ ATF_REQUIRE(signbit(x) != 0);
+
+ for (i = 0; i < __arraycount(exps); i++) {
+ y = ldexpf(x, exps[i]);
+ ATF_CHECK(x == y);
+ ATF_CHECK(signbit(y) != 0);
+ }
+}
+
+ATF_TC(ldexpf_zero_pos);
+ATF_TC_HEAD(ldexpf_zero_pos, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test ldexpf(+0.0) == +0.0");
+}
+
+ATF_TC_BODY(ldexpf_zero_pos, tc)
+{
+ const float x = 0.0L;
+ float y;
+ size_t i;
+
+ ATF_REQUIRE(signbit(x) == 0);
+
+ for (i = 0; i < __arraycount(exps); i++) {
+ y = ldexpf(x, exps[i]);
+ ATF_CHECK(x == y);
+ ATF_CHECK(signbit(y) == 0);
+ }
+}
+
+#define TEST(name, desc) \
+ ATF_TC(name); \
+ ATF_TC_HEAD(name, tc) \
+ { \
+ \
+ atf_tc_set_md_var(tc, "descr", \
+ "Test ldexp(3) for " ___STRING(desc)); \
+ } \
+ ATF_TC_BODY(name, tc) \
+ { \
+ if (strcmp("vax", MACHINE_ARCH) == 0) \
+ atf_tc_skip("Test not valid for " MACHINE_ARCH); \
+ run_test(name); \
+ }
+
+TEST(ldexp_basic, basics)
+TEST(ldexp_zero, zero)
+TEST(ldexp_infinity, infinity)
+TEST(ldexp_overflow, overflow)
+TEST(ldexp_denormal, denormal)
+TEST(ldexp_denormal_large, large)
+TEST(ldexp_underflow, underflow)
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, ldexp_basic);
+ ATF_TP_ADD_TC(tp, ldexp_zero);
+ ATF_TP_ADD_TC(tp, ldexp_infinity);
+ ATF_TP_ADD_TC(tp, ldexp_overflow);
+ ATF_TP_ADD_TC(tp, ldexp_denormal);
+ ATF_TP_ADD_TC(tp, ldexp_underflow);
+ ATF_TP_ADD_TC(tp, ldexp_denormal_large);
+
+ ATF_TP_ADD_TC(tp, ldexp_exp2);
+ ATF_TP_ADD_TC(tp, ldexp_nan);
+ ATF_TP_ADD_TC(tp, ldexp_inf_neg);
+ ATF_TP_ADD_TC(tp, ldexp_inf_pos);
+ ATF_TP_ADD_TC(tp, ldexp_zero_neg);
+ ATF_TP_ADD_TC(tp, ldexp_zero_pos);
+
+ ATF_TP_ADD_TC(tp, ldexpf_exp2f);
+ ATF_TP_ADD_TC(tp, ldexpf_nan);
+ ATF_TP_ADD_TC(tp, ldexpf_inf_neg);
+ ATF_TP_ADD_TC(tp, ldexpf_inf_pos);
+ ATF_TP_ADD_TC(tp, ldexpf_zero_neg);
+ ATF_TP_ADD_TC(tp, ldexpf_zero_pos);
+
+ return atf_no_error();
+}