zig/test/behavior/bugs/12450.zig

21 lines
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Zig

const expect = @import("std").testing.expect;
const builtin = @import("builtin");
const Foo = packed struct {
a: i32,
b: u8,
};
var buffer: [256]u8 = undefined;
test {
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_x86) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
var f1: *align(16) Foo = @alignCast(16, @ptrCast(*align(1) Foo, &buffer[0]));
try expect(@typeInfo(@TypeOf(f1)).Pointer.alignment == 16);
try expect(@ptrToInt(f1) == @ptrToInt(&f1.a));
try expect(@typeInfo(@TypeOf(&f1.a)).Pointer.alignment == 16);
}