method

new

v1_8_6_287 - Show latest stable - 0 notes - Class: IO

new(...) public

Returns a new IO object (a stream) for the given integer file descriptor and mode string. See also IO#fileno and IO::for_fd.

   a = IO.new(2,"w")      # '2' is standard error
   $stderr.puts "Hello"
   a.puts "World"

produces:

   Hello
   World

Show source

/*
 *  call-seq:
 *     IO.new(fd, mode_string)   => io
 *  
 *  Returns a new <code>IO</code> object (a stream) for the given
 *  integer file descriptor and mode string. See also
 *  <code>IO#fileno</code> and <code>IO::for_fd</code>.
 *     
 *     a = IO.new(2,"w")      # '2' is standard error
 *     $stderr.puts "Hello"
 *     a.puts "World"
 *     
 *  <em>produces:</em>
 *     
 *     Hello
 *     World
 */

static VALUE
rb_io_s_new(argc, argv, klass)
    int argc;
    VALUE *argv;
    VALUE klass;
{
    if (rb_block_given_p()) {
        char *cname = rb_class2name(klass);

        rb_warn("%s::new() does not take block; use %s::open() instead",
                cname, cname);
    }
    return rb_class_new_instance(argc, argv, klass);
}

new

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