commit all code

1/1.1.cpp

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+//
+// 1.1.cpp
+// c++1x tutorial
+//
+// created by changkun at shiyanlou.com
+//
+
+#include "foo.h"
+
+int main() {
+    add(1, 2);
+    return 0;
+}

1/Makefile

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+TARGET = 1.1
+all:
+	gcc -c foo.c
+	g++ 1.1.cpp foo.o -o $(TARGET)
+clean:
+	rm -rf *.o $(TARGET)

1/foo.c

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+//
+// foo.c
+// c++1x tutorial
+//
+// created by changkun at shiyanlou.com
+//
+
+
+#include "foo.h"
+
+int add(int x, int y) {
+    return x+y;
+}

1/foo.h

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+//
+// foo.h
+// c++1x tutorial
+//
+// created by changkun at shiyanlou.com
+//
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+    
+int add(int x, int y);
+    
+#ifdef __cplusplus
+}
+#endif