1 files changed, 51 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/string/c_str.cpp b/src/boost/libs/hana/test/string/c_str.cpp
new file mode 100644
index 000000000..b773fc207
--- /dev/null
+++ b/src/boost/libs/hana/test/string/c_str.cpp
@@ -0,0 +1,51 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/string.hpp>
+
+#include <cstring>
+namespace hana = boost::hana;
+
+
+int main() {
+    BOOST_HANA_RUNTIME_CHECK(std::strcmp(
+        BOOST_HANA_STRING("").c_str(),
+        ""
+    ) == 0);
+
+    BOOST_HANA_RUNTIME_CHECK(std::strcmp(
+        BOOST_HANA_STRING("a").c_str(),
+        "a"
+    ) == 0);
+
+    BOOST_HANA_RUNTIME_CHECK(std::strcmp(
+        BOOST_HANA_STRING("ab").c_str(),
+        "ab"
+    ) == 0);
+
+    BOOST_HANA_RUNTIME_CHECK(std::strcmp(
+        BOOST_HANA_STRING("abc").c_str(),
+        "abc"
+    ) == 0);
+
+    BOOST_HANA_RUNTIME_CHECK(std::strcmp(
+        BOOST_HANA_STRING("abcd").c_str(),
+        "abcd"
+    ) == 0);
+
+    // make sure we can turn a non-constexpr hana::string
+    // into a constexpr char const*
+    {
+        auto str = BOOST_HANA_STRING("abcdef");
+        constexpr char const* c_str = str.c_str();
+        (void)c_str;
+    }
+
+    // make sure c_str is actually a static member function
+    {
+        constexpr char const* c_str = hana::string<'f', 'o', 'o'>::c_str();
+        (void)c_str;
+    }
+}