Zig 0.17.0-dev (Split by item)

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fileIsTty

Dispatch.fileIsTty

fn fileIsTty(userdata: ?*anyopaque, file: File) Io.Cancelable!bool

File

lib/std/Io/Dispatch.zig:3597

Code

fn fileIsTty(userdata: ?*anyopaque, file: File) Io.Cancelable!bool {
    const ev: *Evented = @ptrCast(@alignCast(userdata));
    _ = ev;
    while (true) {
        const rc = c.isatty(file.handle);
        switch (c.errno(rc - 1)) {
            .SUCCESS => return true,
            .INTR => {},
            else => return false,
        }
    }
}