Implement full support for non-pointer pointers in custom allocators for vector.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185093 91177308-0d34-0410-b5e6-96231b3b80d8

test/containers/sequences/vector.bool/swap.pass.cpp

@@ -15,6 +15,7 @@
 #include <vector>
 #include <cassert>
 #include "../../test_allocator.h"
+#include "../../min_allocator.h"
 
 int main()
 {
@@ -61,4 +62,37 @@ int main()
         assert(v[0] == false);
         assert(v[1] == true);
     }
+#if __cplusplus >= 201103L
+    {
+        std::vector<bool, min_allocator<bool>> v1(100);
+        std::vector<bool, min_allocator<bool>> v2(200);
+        v1.swap(v2);
+        assert(v1.size() == 200);
+        assert(v1.capacity() >= 200);
+        assert(v2.size() == 100);
+        assert(v2.capacity() >= 100);
+    }
+    {
+        typedef min_allocator<bool> A;
+        std::vector<bool, A> v1(100, true, A());
+        std::vector<bool, A> v2(200, false, A());
+        swap(v1, v2);
+        assert(v1.size() == 200);
+        assert(v1.capacity() >= 200);
+        assert(v2.size() == 100);
+        assert(v2.capacity() >= 100);
+        assert(v1.get_allocator() == A());
+        assert(v2.get_allocator() == A());
+    }
+    {
+        std::vector<bool, min_allocator<bool>> v(2);
+        std::vector<bool, min_allocator<bool>>::reference r1 = v[0];
+        std::vector<bool, min_allocator<bool>>::reference r2 = v[1];
+        r1 = true;
+        using std::swap;
+        swap(r1, r2);
+        assert(v[0] == false);
+        assert(v[1] == true);
+    }
+#endif
 }