3 files changed, 20 insertions, 0 deletions
diff --git a/doc/interoperability/c-from-rust/foo/TARGETS b/doc/interoperability/c-from-rust/foo/TARGETS
new file mode 100644
index 0000000..804b9e8
--- /dev/null
+++ b/doc/interoperability/c-from-rust/foo/TARGETS
@@ -0,0 +1,10 @@
+{ "foo":
+  { "type": ["@", "rules-cc", "CC", "library"]
+  , "pure C": ["true"]
+  , "name": ["foo"]
+  , "srcs": ["foo.c"]
+  , "hdrs": ["foo.h"]
+  , "stage": ["foo"]
+  , "ldflags": ["-lm"]
+  }
+}
diff --git a/doc/interoperability/c-from-rust/foo/foo.c b/doc/interoperability/c-from-rust/foo/foo.c
new file mode 100644
index 0000000..e419fa4
--- /dev/null
+++ b/doc/interoperability/c-from-rust/foo/foo.c
@@ -0,0 +1,7 @@
+#include <math.h>
+
+#include "foo/foo.h"
+
+int c_func(int x){
+  return sqrt(x*x);
+}
diff --git a/doc/interoperability/c-from-rust/foo/foo.h b/doc/interoperability/c-from-rust/foo/foo.h
new file mode 100644
index 0000000..6ce2745
--- /dev/null
+++ b/doc/interoperability/c-from-rust/foo/foo.h
@@ -0,0 +1,3 @@
+#pragma once
+int c_func(int);
+