method

fileno

v1_9_1_378 - Show latest stable - 0 notes - Class: IO

fileno() public

Returns an integer representing the numeric file descriptor for ios.

$stdin.fileno    #=> 0
$stdout.fileno   #=> 1

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static VALUE
rb_io_fileno(VALUE io)
{
    rb_io_t *fptr;
    int fd;

    GetOpenFile(io, fptr);
    fd = fptr->fd;
    return INT2FIX(fd);
}