// SPDX-License-Identifier: LGPL-3.0-only // SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts® // Consumer of the layout under test. `Thing` lives on the stack here, so a // stale object file that still believes the old `sizeof(Payload)` lets the // library's Fill() write past what this frame reserved. Reports the disagreement // as a non-zero exit rather than relying on the corruption to fault. import Widget; import std; int main() { Demo::Thing thing; thing.Fill(); std::println("first={} tail={} sizeof={}", thing.payload.first, thing.tail, sizeof(Demo::Thing)); if (thing.payload.first != 11 || thing.tail != 7) { return 1; } return 0; }