1 files changed, 18 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/OR_USING_C/a.4.c b/reference/C/CONTRIB/OR_USING_C/a.4.c
new file mode 100644
index 0000000..03d0639
--- /dev/null
+++ b/reference/C/CONTRIB/OR_USING_C/a.4.c
@@ -0,0 +1,18 @@
+typedef struct {
+	float r, i;
+} complex;
+
+main()
+{
+    extern complex y_();
+    complex i;
+
+    y_(&i);
+}
+
+x_(c)
+complex *c;
+{
+    c->r = 1.0;
+    c->i = 2.0;
+}