pointers pointers pointers

tests/comprehensive_pointers.sui

@@ -0,0 +1,41 @@
+# Pointer in struct
+struct Point
+    x: *int,
+    y: int,
+end
+
+    # Pointer in function parameter
+fn take_ptr(ptr: *int) -> int do
+  0  # dummy
+end
+
+# Pointer in return type
+fn return_ptr(x: int) -> *int do
+    x as *int
+end
+
+fn main() -> int do
+    # Basic pointer
+    let x: *int = 0 as *int;
+    let y = x;  # Should infer *int
+
+    # Reference and dereference
+    let val = 42;
+    let ptr = &val;  # Should be *int
+    let deref_val = *ptr;  # Should be int
+
+    let ptr_to_ptr: *(*int) = &ptr;  # **int
+
+    let p = Point { x: ptr, y: 42 };
+
+    take_ptr(ptr);
+
+    let z = return_ptr(deref_val);
+
+    # Nested operations
+    let nested_ptr = &ptr;  # **int
+    let deref_once = *nested_ptr;  # *int
+    let deref_twice = *deref_once;  # int
+
+    42
+end

tests/pointers.sui

@@ -0,0 +1,6 @@
+# Pointer type test
+fn main() -> int do
+    let x: *int = 0 as *int;  # Cast to pointer for now
+    let y = x;  # Should infer *int
+    42
+end