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-rw-r--r--math/libm-test-signbit.inc52
1 files changed, 52 insertions, 0 deletions
diff --git a/math/libm-test-signbit.inc b/math/libm-test-signbit.inc
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+/* Test signbit.
+   Copyright (C) 1997-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+static const struct test_f_i_data signbit_test_data[] =
+  {
+    TEST_f_b (signbit, 0, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, minus_zero, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, plus_infty, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, minus_infty, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, qnan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, -qnan_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, snan_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, -snan_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+
+    /* signbit (x) != 0 for x < 0.  */
+    TEST_f_b (signbit, -1, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, -min_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, -min_subnorm_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, -max_value, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    /* signbit (x) == 0 for x >= 0.  */
+    TEST_f_b (signbit, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, min_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, min_subnorm_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_b (signbit, max_value, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+  };
+
+static void
+signbit_test (void)
+{
+  ALL_RM_TEST (signbit, 1, signbit_test_data, RUN_TEST_LOOP_f_b_tg, END);
+}
+
+/*
+ * Local Variables:
+ * mode:c
+ * End:
+ */