zig

test_pass_by_reference_or_value.zig (537B) - Raw

---

 const Point = struct {
     x: i32,
     y: i32,
 };
 
 fn foo(point: Point) i32 {
     // Here, `point` could be a reference, or a copy. The function body
     // can ignore the difference and treat it as a value. Be very careful
     // taking the address of the parameter - it should be treated as if
     // the address will become invalid when the function returns.
     return point.x + point.y;
 }
 
 const expect = @import("std").testing.expect;
 
 test "pass struct to function" {
     try expect(foo(Point{ .x = 1, .y = 2 }) == 3);
 }
 
 // test