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common/std/xtr1common.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/********************************************
+   DISCLAIMER:
+
+   This is a wrapper code to mimic the relevant std:: class
+   Please use it ONLY when porting an existing code e.g. from the original sources
+
+   For all new development please use classes from Common::
+ *********************************************/
+
+#ifndef COMMON_STD_XTR1COMMON_H
+#define COMMON_STD_XTR1COMMON_H
+
+namespace Std {
+
+// STRUCT TEMPLATE conditional
+template <bool _Test, class _Ty1, class _Ty2>
+struct conditional { // Choose _Ty1 if _Test is true, and _Ty2 otherwise
+	using type = _Ty1;
+};
+
+template <class _Ty1, class _Ty2>
+struct conditional<false, _Ty1, _Ty2> {
+	using type = _Ty2;
+};
+
+template <bool _Test, class _Ty1, class _Ty2>
+using conditional_t = typename conditional<_Test, _Ty1, _Ty2>::type;
+
+} // namespace Std
+
+#endif