mirror of
https://github.com/ziglang/zig.git
synced 2025-12-16 03:03:09 +00:00
41 lines
1.2 KiB
Zig
41 lines
1.2 KiB
Zig
const builtin = @import("builtin");
|
|
const std = @import("std");
|
|
const expect = std.testing.expect;
|
|
|
|
test "allocation and looping over 3-byte integer" {
|
|
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
|
|
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
|
|
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
|
|
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
|
|
|
|
if (builtin.zig_backend == .stage2_llvm and builtin.os.tag == .macos) {
|
|
return error.SkipZigTest; // TODO
|
|
}
|
|
|
|
if (builtin.zig_backend == .stage2_llvm and builtin.cpu.arch == .wasm32) {
|
|
return error.SkipZigTest; // TODO
|
|
}
|
|
|
|
try expect(@sizeOf(u24) == 4);
|
|
try expect(@sizeOf([1]u24) == 4);
|
|
try expect(@alignOf(u24) == 4);
|
|
try expect(@alignOf([1]u24) == 4);
|
|
|
|
var x = try std.testing.allocator.alloc(u24, 2);
|
|
defer std.testing.allocator.free(x);
|
|
try expect(x.len == 2);
|
|
x[0] = 0xFFFFFF;
|
|
x[1] = 0xFFFFFF;
|
|
|
|
const bytes = std.mem.sliceAsBytes(x);
|
|
try expect(@TypeOf(bytes) == []align(4) u8);
|
|
try expect(bytes.len == 8);
|
|
|
|
for (bytes) |*b| {
|
|
b.* = 0x00;
|
|
}
|
|
|
|
try expect(x[0] == 0x00);
|
|
try expect(x[1] == 0x00);
|
|
}
|