From 441cdf0935a053dddb567c54b313be4a54809d0c Mon Sep 17 00:00:00 2001
From: Jason Turner <jason@emptycrate.com>
Date: Mon, 16 Jul 2012 22:10:40 -0600
Subject: [PATCH] Add test showing c linkage working fine [#16]

---
 CMakeLists.txt               |  4 ++++
 unittests/c_linkage_test.cpp | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 unittests/c_linkage_test.cpp

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0d9b474..9f0c767 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -204,6 +204,10 @@ if(BUILD_TESTING)
     target_link_libraries(simultaneous_chaiscript_test ${LIBS})
     add_test(NAME Simultaneous_Chaiscript_Test COMMAND simultaneous_chaiscript_test)
 
+    add_executable(c_linkage_test unittests/c_linkage_test.cpp)
+    target_link_libraries(c_linkage_test ${LIBS})
+    add_test(NAME C_Linkage_Test COMMAND c_linkage_test)
+
     if (MULTITHREAD_SUPPORT_ENABLED)
       add_executable(multithreaded_test unittests/multithreaded_test.cpp)
       target_link_libraries(multithreaded_test ${LIBS})
diff --git a/unittests/c_linkage_test.cpp b/unittests/c_linkage_test.cpp
new file mode 100644
index 0000000..833e400
--- /dev/null
+++ b/unittests/c_linkage_test.cpp
@@ -0,0 +1,20 @@
+#include <chaiscript/chaiscript.hpp>
+
+
+extern "C"
+{
+  int dosomething(int i)
+  {
+    return i % 2;
+  }
+}
+
+int main()
+{
+
+  chaiscript::ChaiScript chai;
+  chai.add(chaiscript::fun(&dosomething), "dosomething");
+
+  return chai.eval<int>("dosomething(101)") == 101 % 2?EXIT_SUCCESS:EXIT_FAILURE;
+
+}