libcxx initial import

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

test/language.support/support.dynamic/new.delete/new.delete.single/new_replace.pass.cpp

@@ -0,0 +1,49 @@
+//===----------------------------------------------------------------------===//
+//
+// <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.
+//
+//===----------------------------------------------------------------------===//
+ 
+ // test operator new replacement
+
+#include <new>
+#include <cstddef>
+#include <cstdlib>
+#include <cassert>
+#include <limits>
+
+int new_called = 0;
+
+void* operator new(std::size_t s) throw(std::bad_alloc)
+{
+    ++new_called;
+    return std::malloc(s);
+}
+
+void  operator delete(void* p) throw()
+{
+    --new_called;
+    std::free(p);
+}
+
+bool A_constructed = false;
+
+struct A
+{
+    A() {A_constructed = true;}
+    ~A() {A_constructed = false;}
+};
+
+int main()
+{
+    A* ap = new A;
+    assert(ap);
+    assert(A_constructed);
+    assert(new_called);
+    delete ap;
+    assert(!A_constructed);
+    assert(!new_called);
+}