libcxx initial import

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

test/algorithms/alg.nonmodifying/alg.foreach/test.pass.cpp

@@ -0,0 +1,39 @@
+//===----------------------------------------------------------------------===//
+//
+// <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.
+//
+//===----------------------------------------------------------------------===//
+
+// <algorithm>
+
+// template<InputIterator Iter, Callable<auto, Iter::reference> Function> 
+//   requires CopyConstructible<Function> 
+//   Function
+//   for_each(Iter first, Iter last, Function f);
+
+#include <algorithm>
+#include <cassert>
+
+#include "../../iterators.h"
+
+struct for_each_test
+{
+    for_each_test(int c) : count(c) {}
+    int count;
+    void operator()(int& i) {++i; ++count;}
+};
+
+int main()
+{
+    int ia[] = {0, 1, 2, 3, 4, 5};
+    const unsigned s = sizeof(ia)/sizeof(ia[0]);
+    for_each_test f = std::for_each(input_iterator<int*>(ia),
+                                    input_iterator<int*>(ia+s),
+                                    for_each_test(0));
+    assert(f.count == s);
+    for (unsigned i = 0; i < s; ++i)
+        assert(ia[i] == i+1);
+}