1 files changed, 51 insertions, 0 deletions
diff --git a/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.cons/custom_alloc.pass.cpp b/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.cons/custom_alloc.pass.cpp
new file mode 100644
index 000000000000..12a1fb874c30
--- /dev/null
+++ b/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.cons/custom_alloc.pass.cpp
@@ -0,0 +1,51 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <strstream>
+
+// class strstreambuf
+
+// strstreambuf(void* (*palloc_arg)(size_t), void (*pfree_arg)(void*));
+
+#include <strstream>
+#include <cassert>
+
+int called = 0;
+
+void* my_alloc(std::size_t n)
+{
+    static char buf[10000];
+    ++called;
+    return buf;
+}
+
+void my_free(void*)
+{
+    ++called;
+}
+
+struct test
+    : std::strstreambuf
+{
+    test(void* (*palloc_arg)(size_t), void (*pfree_arg)(void*))
+        : std::strstreambuf(palloc_arg, pfree_arg) {}
+    virtual int_type overflow(int_type c)
+        {return std::strstreambuf::overflow(c);}
+};
+
+int main()
+{
+    {
+        test s(my_alloc, my_free);
+        assert(called == 0);
+        s.overflow('a');
+        assert(called == 1);
+    }
+    assert(called == 2);
+}