| 1 | const std = @import("std"); |
| 2 | const expectEqual = std.testing.expectEqual; |
| 3 | |
| 4 | test "no runtime side effects" { |
| 5 | var data: i32 = 0; |
| 6 | const T = @TypeOf(foo(i32, &data)); |
| 7 | try comptime expectEqual(i32, T); |
| 8 | try expectEqual(0, data); |
| 9 | } |
| 10 | |
| 11 | fn foo(comptime T: type, ptr: *T) T { |
| 12 | ptr.* += 1; |
| 13 | return ptr.*; |
| 14 | } |
| 15 | |
| 16 | // test |