libcxx initial import

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8

test/containers/sequences/vector/vector.modifiers/emplace.pass.cpp

@@ -0,0 +1,106 @@
+//===----------------------------------------------------------------------===//
+//
+// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <vector>
+
+// template <class... Args> iterator emplace(const_iterator pos, Args&&... args);
+
+#include <vector>
+#include <cassert>
+#include "../../../stack_allocator.h"
+
+#ifdef _LIBCPP_MOVE
+
+class A
+{
+    int i_;
+    double d_;
+
+    A(const A&);
+    A& operator=(const A&);
+public:
+    A(int i, double d)
+        : i_(i), d_(d) {}
+
+    A(A&& a)
+        : i_(a.i_),
+          d_(a.d_)
+    {
+        a.i_ = 0;
+        a.d_ = 0;
+    }
+
+    A& operator=(A&& a)
+    {
+        i_ = a.i_;
+        d_ = a.d_;
+        a.i_ = 0;
+        a.d_ = 0;
+        return *this;
+    }
+
+    int geti() const {return i_;}
+    double getd() const {return d_;}
+};
+
+#endif
+
+int main()
+{
+#ifdef _LIBCPP_MOVE
+    {
+        std::vector<A> c;
+        std::vector<A>::iterator i = c.emplace(c.cbegin(), 2, 3.5);
+        assert(i == c.begin());
+        assert(c.size() == 1);
+        assert(c.front().geti() == 2);
+        assert(c.front().getd() == 3.5);
+        i = c.emplace(c.cend(), 3, 4.5);
+        assert(i == c.end()-1);
+        assert(c.size() == 2);
+        assert(c.front().geti() == 2);
+        assert(c.front().getd() == 3.5);
+        assert(c.back().geti() == 3);
+        assert(c.back().getd() == 4.5);
+        i = c.emplace(c.cbegin()+1, 4, 6.5);
+        assert(i == c.begin()+1);
+        assert(c.size() == 3);
+        assert(c.front().geti() == 2);
+        assert(c.front().getd() == 3.5);
+        assert(c[1].geti() == 4);
+        assert(c[1].getd() == 6.5);
+        assert(c.back().geti() == 3);
+        assert(c.back().getd() == 4.5);
+    }
+    {
+        std::vector<A, stack_allocator<A, 7> > c;
+        std::vector<A, stack_allocator<A, 7> >::iterator i = c.emplace(c.cbegin(), 2, 3.5);
+        assert(i == c.begin());
+        assert(c.size() == 1);
+        assert(c.front().geti() == 2);
+        assert(c.front().getd() == 3.5);
+        i = c.emplace(c.cend(), 3, 4.5);
+        assert(i == c.end()-1);
+        assert(c.size() == 2);
+        assert(c.front().geti() == 2);
+        assert(c.front().getd() == 3.5);
+        assert(c.back().geti() == 3);
+        assert(c.back().getd() == 4.5);
+        i = c.emplace(c.cbegin()+1, 4, 6.5);
+        assert(i == c.begin()+1);
+        assert(c.size() == 3);
+        assert(c.front().geti() == 2);
+        assert(c.front().getd() == 3.5);
+        assert(c[1].geti() == 4);
+        assert(c[1].getd() == 6.5);
+        assert(c.back().geti() == 3);
+        assert(c.back().getd() == 4.5);
+    }
+#endif
+}