Source
pub const ACCMODE = switch (native_os) {
// POSIX has a note about the access mode values:
//
// In historical implementations the value of O_RDONLY is zero. Because of
// that, it is not possible to detect the presence of O_RDONLY and another
// option. Future implementations should encode O_RDONLY and O_WRONLY as
// bit flags so that: O_RDONLY | O_WRONLY == O_RDWR
//
// In practice SerenityOS is the only system supported by Zig that
// implements this suggestion.
// https://github.com/SerenityOS/serenity/blob/4adc51fdf6af7d50679c48b39362e062f5a3b2cb/Kernel/API/POSIX/fcntl.h#L28-L30
.serenity => enum(u2) {
NONE = 0,
RDONLY = 1,
WRONLY = 2,
RDWR = 3,
},
else => enum(u2) {
RDONLY = 0,
WRONLY = 1,
RDWR = 2,
},
}