Consistently use _M_in_beg instead of eback(), _M_in_cur instead of gptr(), and so on.

Consistently use _M_in_beg instead of eback(), _M_in_cur instead of gptr(), and so on.

2003-04-21  Paolo Carlini  <pcarlini@unitus.it>

	Consistently use _M_in_beg instead of eback(), _M_in_cur
	instead of gptr(), and so on.
	* include/bits/fstream.tcc (pbackfail, imbue): Here.
	* include/bits/sstream.tcc (pbackfail, seekoff, seekpos): Ditto.
	* include/bits/streambuf.tcc (sbumpc, sputbackc,
	__copy_streambufs): Ditto.
	* include/std/std_streambuf.h (sgetc): Ditto.

From-SVN: r65909