Call a foreign-language function: Difference between revisions

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 LibC.free(duplicate)
 </lang>
+=={{header|Rust}}==
+<lang rust>extern crate libc;
+//c function that returns the sum of two integers
+extern {
+    fn add_input(in1: libc::c_int, in2: libc::c_int) -> libc::c_int;
+}
+fn main() {
+    let (in1, in2) = (5, 4);
+    let output = unsafe {
+        add_input(in1, in2) };
+    assert!( (output == (in1 + in2) ),"Error in sum calculation") ;
+}</lang>
 === Fiddle ===