aboutsummaryrefslogtreecommitdiff
path: root/test/cases/safety/switch on corrupted union value.zig
blob: fc93c9d6e7f0a6931921b0b26b65e97436133eb0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
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, "switch on corrupt value")) {
        std.process.exit(0);
    }
    std.process.exit(1);
}

const U = union(enum(u32)) {
    X: u8,
    Y: i8,
};

pub fn main() !void {
    var u: U = undefined;
    @memset(@as([*]u8, @ptrCast(&u))[0..@sizeOf(U)], 0x55);
    switch (u) {
        .X, .Y => @breakpoint(),
    }
    return error.TestFailed;
}

// run
// backend=llvm
// target=native