Added initializer_list and construct vector from one

Author: maniacbug

initializer_list

@@ -0,0 +1,104 @@
+// std::initializer_list support -*- C++ -*-
+
+// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC 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, or (at your option)
+// any later version.
+//
+// GCC 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.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file initializer_list
+ *  This is a Standard C++ Library header.
+ */
+
+#ifndef _INITIALIZER_LIST
+#define _INITIALIZER_LIST
+
+#if __cplusplus >= 201103L
+
+#pragma GCC system_header
+
+#pragma GCC visibility push(default)
+
+//#include <bits/c++config.h>
+
+namespace std
+{
+  /// initializer_list
+  template<class _E>
+    class initializer_list
+    {
+    public:
+      typedef _E 		value_type;
+      typedef const _E& 	reference;
+      typedef const _E& 	const_reference;
+      typedef size_t 		size_type;
+      typedef const _E* 	iterator;
+      typedef const _E* 	const_iterator;
+
+    private:
+      iterator			_M_array;
+      size_type			_M_len;
+
+      // The compiler can call a private constructor.
+      constexpr initializer_list(const_iterator __a, size_type __l)
+      : _M_array(__a), _M_len(__l) { }
+
+    public:
+      constexpr initializer_list() noexcept
+      : _M_array(0), _M_len(0) { }
+
+      // Number of elements.
+      constexpr size_type
+      size() const noexcept { return _M_len; }
+
+      // First element.
+      constexpr const_iterator
+      begin() const noexcept { return _M_array; }
+
+      // One past the last element.
+      constexpr const_iterator
+      end() const noexcept { return begin() + size(); }
+  };
+
+  /**
+   *  @brief  Return an iterator pointing to the first element of
+   *          the initilizer_list.
+   *  @param  __ils  Initializer list.
+   */
+  template<class _Tp>
+    constexpr const _Tp*
+    begin(initializer_list<_Tp> __ils) noexcept
+    { return __ils.begin(); }
+
+  /**
+   *  @brief  Return an iterator pointing to one past the last element
+   *          of the initilizer_list.
+   *  @param  __ils  Initializer list.
+   */
+  template<class _Tp>
+    constexpr const _Tp*
+    end(initializer_list<_Tp> __ils) noexcept
+    { return __ils.end(); }
+}
+
+#pragma GCC visibility pop
+
+#endif // __cplusplus >= 201103L
+#endif // _INITIALIZER_LIST

vector

@@ -24,7 +24,7 @@
 #include <func_exception>
 #include <algorithm>
 #include <type_traits>
-
+#include <initializer_list>
 
 #ifndef __STD_HEADER_VECTOR
 #define __STD_HEADER_VECTOR
@@ -93,7 +93,19 @@ namespace std{
 				a.construct(data+i, x.data[i]);
 			}	
 		}
+#if __cplusplus >= 201103L
+		_UCXXEXPORT vector(initializer_list<T> x,const Allocator& al= Allocator()):
+			a(al)
+		{ 
 
+			elements  = x.size();
+			data_size = elements + __UCLIBCXX_STL_BUFFER_SIZE__;
+			data = a.allocate(data_size);
+			size_type i = 0;
+			for( auto xx : x )
+				a.construct(data + i++, xx);
+		}
+#endif
 		_UCXXEXPORT ~vector();	//Below
 
 		_UCXXEXPORT vector<T,Allocator>& operator=(const vector<T,Allocator>& x){