libcxx initial import

llvm-svn: 103490

1 files changed, 52 insertions, 0 deletions

diff --git a/libcxx/test/input.output/file.streams/fstreams/filebuf.assign/member_swap.pass.cpp b/libcxx/test/input.output/file.streams/fstreams/filebuf.assign/member_swap.pass.cpp
new file mode 100644
index 00000000000..248c5cd4f4a
--- /dev/null
+++ b/libcxx/test/input.output/file.streams/fstreams/filebuf.assign/member_swap.pass.cpp
@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <fstream>
+
+// template <class charT, class traits = char_traits<charT> >
+// class basic_filebuf
+
+// void swap(basic_filebuf& rhs);
+
+#include <fstream>
+#include <cassert>
+
+int main()
+{
+    {
+        std::filebuf f;
+        assert(f.open("test.dat", std::ios_base::out | std::ios_base::in
+                                                     | std::ios_base::trunc) != 0);
+        assert(f.is_open());
+        assert(f.sputn("123", 3) == 3);
+        f.pubseekoff(1, std::ios_base::beg);
+        assert(f.sgetc() == '2');
+        std::filebuf f2;
+        f2.swap(f);
+        assert(!f.is_open());
+        assert(f2.is_open());
+        assert(f2.sgetc() == '2');
+    }
+    remove("test.dat");
+    {
+        std::wfilebuf f;
+        assert(f.open("test.dat", std::ios_base::out | std::ios_base::in
+                                                     | std::ios_base::trunc) != 0);
+        assert(f.is_open());
+        assert(f.sputn(L"123", 3) == 3);
+        f.pubseekoff(1, std::ios_base::beg);
+        assert(f.sgetc() == L'2');
+        std::wfilebuf f2;
+        f2.swap(f);
+        assert(!f.is_open());
+        assert(f2.is_open());
+        assert(f2.sgetc() == L'2');
+    }
+    remove("test.dat");
+}