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+/* Template to produce unique symbols.
+ Copyright (C) 2019 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
+ <https://www.gnu.org/licenses/>. */
+
+/* This template produces a unique symbol definition for an explicit
+ template instantiation (without also incorporating a reference),
+ and an extern template declaration can be used to reference that
+ symbol from another object. The modid parameter is just a
+ placeholder to create different symbols (because it affects the
+ name mangling of the static value member). By convention, it
+ should match the number of the module that contains the
+ definition. */
+
+template <int modid>
+struct unique_symbol
+{
+ static int value;
+};
+
+template <int modid>
+int unique_symbol<modid>::value;