Module: IO::readable

Included in:
StringIO
Defined in:
stringio.c

Instance Method Summary collapse

Instance Method Details

#sysread(integer[, outbuf]) ⇒ String

Similar to #read, but raises EOFError at end of string instead of returning nil, as well as IO#sysread does.

Returns:

  • (String) 


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# File 'stringio.c', line 1338

static VALUE
strio_sysread(int argc, VALUE *argv, VALUE self)
{
    VALUE val = rb_funcall2(self, rb_intern("read"), argc, argv);
    if (NIL_P(val)) {
	rb_eof_error();
    }
    return val;
}

#readbyte ⇒ Fixnum

See IO#readbyte.

Returns:

  • (Fixnum) 


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# File 'stringio.c', line 844

static VALUE
strio_readbyte(VALUE self)
{
    VALUE c = rb_funcall2(self, rb_intern("getbyte"), 0, 0);
    if (NIL_P(c)) rb_eof_error();
    return c;
}

#readchar ⇒ String

See IO#readchar.

Returns:

  • (String) 


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# File 'stringio.c', line 830

static VALUE
strio_readchar(VALUE self)
{
    VALUE c = rb_funcall2(self, rb_intern("getc"), 0, 0);
    if (NIL_P(c)) rb_eof_error();
    return c;
}

#readline(sep = $/) ⇒ String #readline(limit) ⇒ String? #readline(sep, limit) ⇒ String?

See IO#readline.

Overloads:

  • #readline(sep = $/) ⇒ String

    Returns:

    • (String)
  • #readline(limit) ⇒ String?

    Returns:

    • (String, nil)
  • #readline(sep, limit) ⇒ String?

    Returns:

    • (String, nil) 


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# File 'stringio.c', line 1079

static VALUE
strio_readline(int argc, VALUE *argv, VALUE self)
{
    VALUE line = rb_funcall2(self, rb_intern("gets"), argc, argv);
    if (NIL_P(line)) rb_eof_error();
    return line;
}

#sysread(integer[, outbuf]) ⇒ String

Similar to #read, but raises EOFError at end of string instead of returning nil, as well as IO#sysread does.

Returns:

  • (String) 


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# File 'stringio.c', line 1338

static VALUE
strio_sysread(int argc, VALUE *argv, VALUE self)
{
    VALUE val = rb_funcall2(self, rb_intern("read"), argc, argv);
    if (NIL_P(val)) {
	rb_eof_error();
    }
    return val;
}

#sysread(integer[, outbuf]) ⇒ String

Similar to #read, but raises EOFError at end of string instead of returning nil, as well as IO#sysread does.

Returns:

  • (String) 


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# File 'stringio.c', line 1338

static VALUE
strio_sysread(int argc, VALUE *argv, VALUE self)
{
    VALUE val = rb_funcall2(self, rb_intern("read"), argc, argv);
    if (NIL_P(val)) {
	rb_eof_error();
    }
    return val;
}