Function dup [src]

Prototype

pub fn dup(old_fd: fd_t) !fd_t

Parameters

old_fd: fd_t

Source

  pub fn dup(old_fd: fd_t) !fd_t {
    const rc = system.dup(old_fd);
    return switch (errno(rc)) {
        .SUCCESS => return @intCast(rc),
        .MFILE => error.ProcessFdQuotaExceeded,
        .BADF => unreachable, // invalid file descriptor
        else => |err| return unexpectedErrno(err),
    };
}  