2003-03-08  Paolo Carlini <pcarlini@unitus.it>
	    Petur Runolfsson  <peturr02@ru.is>

	PR libstdc++/9424
	* include/bits/streambuf.tcc (__copy_streambufs): Use
	sgetn-sputn only when sputn cannot fail, otherwise fall back
	to safe snextc-sputc.
	* testsuite/27_io/streambuf_members.cc (test11, test12): Add.

Co-Authored-By: Petur Runolfsson <peturr02@ru.is>

From-SVN: r63974