1 files changed, 22 insertions, 0 deletions
diff --git a/v1/main.c b/v1/main.c
new file mode 100644
index 0000000..d149c87
--- /dev/null
+++ b/v1/main.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include "square.h"
+
+void print_square(struct square *square)
+{
+    double area = square_area(square);
+    printf("square_area=%f\n", area);
+}
+
+void print_shape(struct shape *shape)
+{
+    double area = shape_area(shape);
+    printf("shape_area=%f\n", area);
+}
+
+int main(int argc, char **argv)
+{
+    struct square *square = square_create(5);
+    print_square(square);
+    print_shape(square_as_shape(square));
+    shape_destroy(square_as_shape(square));
+}