1 files changed, 47 insertions, 0 deletions
diff --git a/libcxx/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.virtuals/overflow.pass.cpp b/libcxx/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.virtuals/overflow.pass.cpp
new file mode 100644
index 00000000000..843450b71ea
--- /dev/null
+++ b/libcxx/test/std/depr/depr.str.strstreams/depr.strstreambuf/depr.strstreambuf.virtuals/overflow.pass.cpp
@@ -0,0 +1,47 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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
+
+// int_type overflow(int_type c = EOF);
+
+#include <strstream>
+#include <cassert>
+
+int main()
+{
+    {
+        char buf[12] = "abc";
+        std::strstreambuf sb(buf, sizeof(buf), buf);
+        assert(sb.sputc('1') == '1');
+        assert(sb.str() == std::string("1bc"));
+        assert(sb.sputc('2') == '2');
+        assert(sb.str() == std::string("12c"));
+        assert(sb.sputc('3') == '3');
+        assert(sb.str() == std::string("123"));
+        assert(sb.sputc('4') == '4');
+        assert(sb.str() == std::string("1234"));
+        assert(sb.sputc('5') == '5');
+        assert(sb.str() == std::string("12345"));
+        assert(sb.sputc('6') == '6');
+        assert(sb.str() == std::string("123456"));
+        assert(sb.sputc('7') == '7');
+        assert(sb.str() == std::string("1234567"));
+        assert(sb.sputc('8') == '8');
+        assert(sb.str() == std::string("12345678"));
+        assert(sb.sputc('9') == '9');
+        assert(sb.str() == std::string("123456789"));
+        assert(sb.sputc('0') == '0');
+        assert(sb.str() == std::string("1234567890"));
+        assert(sb.sputc('1') == '1');
+        assert(sb.str() == std::string("12345678901"));
+    }
+}