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-rw-r--r--math/libm-test-ilogb.inc64
1 files changed, 64 insertions, 0 deletions
diff --git a/math/libm-test-ilogb.inc b/math/libm-test-ilogb.inc
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+/* Test ilogb.
+   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 ilogb_test_data[] =
+  {
+    TEST_f_i (ilogb, 1, 0, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_i (ilogb, lit_e, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_i (ilogb, 1024, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_i (ilogb, -2000, 10, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_i (ilogb, 0.5, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+    TEST_f_i (ilogb, -0.5, -1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+
+#if MANT_DIG >= 57
+    TEST_f_i (ilogb, 0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_i (ilogb, -0x1.ffffffffffffffp1L, 1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+#endif
+
+    TEST_f_i (ilogb, min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+    TEST_f_i (ilogb, -min_subnorm_value, MIN_EXP-MANT_DIG, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+    TEST_f_i (ilogb, min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+    TEST_f_i (ilogb, -min_value, MIN_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+    TEST_f_i (ilogb, max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+    TEST_f_i (ilogb, -max_value, MAX_EXP-1, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED);
+
+    /* ilogb (0.0) == FP_ILOGB0 plus invalid exception  */
+    TEST_f_i (ilogb, 0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_i (ilogb, -0.0, FP_ILOGB0, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    /* ilogb (qNaN) == FP_ILOGBNAN plus invalid exception  */
+    TEST_f_i (ilogb, qnan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_i (ilogb, -qnan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_i (ilogb, snan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    TEST_f_i (ilogb, -snan_value, FP_ILOGBNAN, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    /* ilogb (inf) == INT_MAX plus invalid exception  */
+    TEST_f_i (ilogb, plus_infty, INT_MAX, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+    /* ilogb (-inf) == INT_MAX plus invalid exception  */
+    TEST_f_i (ilogb, minus_infty, INT_MAX, NO_INEXACT_EXCEPTION|INVALID_EXCEPTION|ERRNO_EDOM),
+  };
+
+static void
+ilogb_test (void)
+{
+  ALL_RM_TEST (ilogb, 1, ilogb_test_data, RUN_TEST_LOOP_f_i, END);
+}
+
+/*
+ * Local Variables:
+ * mode:c
+ * End:
+ */