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-rw-r--r--ocamlbuild/examples/example_with_C/fibwrap.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/ocamlbuild/examples/example_with_C/fibwrap.c b/ocamlbuild/examples/example_with_C/fibwrap.c
new file mode 100644
index 000000000..cc2104b67
--- /dev/null
+++ b/ocamlbuild/examples/example_with_C/fibwrap.c
@@ -0,0 +1,7 @@
+ /* -*- C -*- */
+#include <caml/mlvalues.h>
+#include <caml/callback.h>
+int fib(int n)
+{
+ return Int_val(caml_callback(*caml_named_value("fib"), Val_int(n)));
+}