const Id: type = switch (target.os.tag) { .linux, .dragonfly, .netbsd, .freebsd, .openbsd, .haiku, .wasi, => u32, .macos, .ios, .watchos, .tvos => u64, .windows => os.windows.DWORD, else => usize, };
[src]
Represents an ID per thread guaranteed to be unique only within a process.