1 files changed, 64 insertions, 0 deletions
diff --git a/math/libm-test-carg.inc b/math/libm-test-carg.inc
new file mode 100644
index 0000000000..e92d4fbcce
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+++ b/math/libm-test-carg.inc
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+/* Test carg.
+   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_c_f_data carg_test_data[] =
+  {
+    /* carg (x + iy) is specified as atan2 (y, x) */
+
+    /* carg (inf + i y) == +0 for finite y > 0.  */
+    TEST_c_f (carg, plus_infty, 2.0, 0),
+
+    /* carg (inf + i y) == -0 for finite y < 0.  */
+    TEST_c_f (carg, plus_infty, -2.0, minus_zero),
+
+    /* carg(x + i inf) == pi/2 for finite x.  */
+    TEST_c_f (carg, 10.0, plus_infty, lit_pi_2_d),
+
+    /* carg(x - i inf) == -pi/2 for finite x.  */
+    TEST_c_f (carg, 10.0, minus_infty, -lit_pi_2_d),
+
+    /* carg (-inf + i y) == +pi for finite y > 0.  */
+    TEST_c_f (carg, minus_infty, 10.0, lit_pi),
+
+    /* carg (-inf + i y) == -pi for finite y < 0.  */
+    TEST_c_f (carg, minus_infty, -10.0, -lit_pi),
+
+    TEST_c_f (carg, plus_infty, plus_infty, lit_pi_4_d),
+
+    TEST_c_f (carg, plus_infty, minus_infty, -lit_pi_4_d),
+
+    TEST_c_f (carg, minus_infty, plus_infty, lit_pi_3_m_4_d),
+
+    TEST_c_f (carg, minus_infty, minus_infty, -lit_pi_3_m_4_d),
+
+    TEST_c_f (carg, qnan_value, qnan_value, qnan_value),
+
+    AUTO_TESTS_c_f (carg),
+  };
+
+static void
+carg_test (void)
+{
+  ALL_RM_TEST (carg, 0, carg_test_data, RUN_TEST_LOOP_c_f, END);
+}
+
+/*
+ * Local Variables:
+ * mode:c
+ * End:
+ */