1 files changed, 109 insertions, 0 deletions
diff --git a/argp/tst-ldbl-argp.c b/argp/tst-ldbl-argp.c
new file mode 100644
index 0000000000..4465f812af
--- /dev/null
+++ b/argp/tst-ldbl-argp.c
@@ -0,0 +1,109 @@
+/* Testing of long double conversions in argp.h functions.
+   Copyright (C) 2018 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/>.  */
+
+#include <argp.h>
+#include <string.h>
+
+#include <support/capture_subprocess.h>
+#include <support/check.h>
+
+static const struct argp_option
+options[] =
+{
+  { "error", 'e', "format", OPTION_ARG_OPTIONAL,
+    "Run argp_error function with a format string", 0 },
+  { "failure", 'f', "format", OPTION_ARG_OPTIONAL,
+    "Run argp_failure function with a format string", 0 },
+  { NULL, 0, NULL, 0, NULL }
+};
+
+static error_t
+parser (int key, char *arg, struct argp_state *state)
+{
+  switch (key)
+    {
+      case 'e':
+	argp_error (state, "%Lf%f%Lf%f", (long double) -1, (double) -2,
+		    (long double) -3, (double) -4);
+	break;
+      case 'f':
+	argp_failure (state, 0, 0, "%Lf%f%Lf%f", (long double) -1,
+		      (double) -2, (long double) -3, (double) -4);
+	break;
+      default:
+	return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+static struct argp
+argp =
+{
+  options, parser
+};
+
+int argc = 2;
+char *argv[3] = { (char *) "test-argp", NULL, NULL };
+
+static void
+do_test_call (void)
+{
+  int remaining;
+  argp_parse (&argp, argc, argv, 0, &remaining, NULL);
+}
+
+static int
+do_one_test (const char *expected)
+{
+  struct support_capture_subprocess result;
+  result = support_capture_subprocess ((void *) &do_test_call, NULL);
+
+  if (strcmp (result.err.buffer, expected) != 0)
+    {
+      support_record_failure ();
+      printf ("error:\n"
+	      "    expected: '%s'\n"
+	      "      actual: '%s'\n",
+	      expected, result.err.buffer);
+    }
+
+  return 0;
+}
+
+static int
+do_test (void)
+{
+  const char *param_error = "--error";
+  const char *expected_error =
+    "test-argp: -1.000000-2.000000-3.000000-4.000000\n"
+    "Try `test-argp --help' or `test-argp --usage' for more information.\n";
+
+  const char *param_failure = "--failure";
+  const char *expected_failure =
+    "test-argp: -1.000000-2.000000-3.000000-4.000000\n";
+
+  argv[1] = (char *) param_error;
+  do_one_test (expected_error);
+
+  argv[1] = (char *) param_failure;
+  do_one_test (expected_failure);
+
+  return 0;
+}
+
+#include <support/test-driver.c>