1 files changed, 84 insertions, 0 deletions
diff --git a/test/math/test-tgmath-ret.c b/test/math/test-tgmath-ret.c
new file mode 100644
index 0000000..9f535b9
--- /dev/null
+++ b/test/math/test-tgmath-ret.c
@@ -0,0 +1,84 @@
+/* Test compilation of tgmath macros.
+   Copyright (C) 2003-2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 2003.
+
+   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 <math.h>
+#include <complex.h>
+#include <tgmath.h>
+#include <stdio.h>
+
+static float fx;
+static double dx;
+static long double lx;
+static int errors = 0;
+
+static void
+our_error (const char *c)
+{
+  puts (c);
+  ++errors;
+}
+
+/* First function where the return type is constant.  */
+
+#define CHECK_RET_CONST_TYPE(func, rettype, arg, name) \
+  if (sizeof (func (arg)) != sizeof (rettype))				      \
+    our_error ("Return size of " #func " is wrong with " #name " argument");
+
+#define CHECK_RET_CONST_FLOAT(func, rettype) \
+  CHECK_RET_CONST_TYPE (func, rettype, fx, float)
+#define CHECK_RET_CONST_DOUBLE(func, rettype) \
+  CHECK_RET_CONST_TYPE (func, rettype, dx, double)
+#ifdef NO_LONG_DOUBLE
+# define CHECK_RET_CONST_LDOUBLE(func, rettype)
+#else
+# define CHECK_RET_CONST_LDOUBLE(func, rettype) \
+  CHECK_RET_CONST_TYPE (func, rettype, lx, long double)
+#endif
+
+#define CHECK_RET_CONST(func, rettype) \
+static void								      \
+check_return_ ##func (void)						      \
+{									      \
+  CHECK_RET_CONST_FLOAT (func, rettype)					      \
+  CHECK_RET_CONST_DOUBLE (func, rettype)				      \
+  CHECK_RET_CONST_LDOUBLE (func, rettype)				      \
+}
+
+CHECK_RET_CONST(ilogb, int)
+CHECK_RET_CONST(lrint, long)
+CHECK_RET_CONST(lround, long)
+CHECK_RET_CONST(llrint, long long)
+CHECK_RET_CONST(llround, long long)
+
+static int
+do_test (void)
+{
+  check_return_ilogb ();
+  check_return_lrint ();
+  check_return_lround ();
+  check_return_llrint ();
+  check_return_llround ();
+
+  printf ("%Zd\n", sizeof(carg (lx)));
+
+  return errors != 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"