zig/test/cases/safety/@alignCast misaligned.zig
2022-09-20 19:05:00 -07:00

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Zig

const std = @import("std");
pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace, _: ?usize) noreturn {
_ = stack_trace;
if (std.mem.eql(u8, message, "incorrect alignment")) {
std.process.exit(0);
}
std.process.exit(1);
}
pub fn main() !void {
var array align(4) = [_]u32{0x11111111, 0x11111111};
const bytes = std.mem.sliceAsBytes(array[0..]);
if (foo(bytes) != 0x11111111) return error.Wrong;
return error.TestFailed;
}
fn foo(bytes: []u8) u32 {
const slice4 = bytes[1..5];
const int_slice = std.mem.bytesAsSlice(u32, @alignCast(4, slice4));
return int_slice[0];
}
// run
// backend=llvm
// target=native