istream.tcc (operator>>(basic_istream<>&, basic_string<>&)): Use a temporary buffer...

istream.tcc (operator>>(basic_istream<>&, basic_string<>&)): Use a temporary buffer, thus avoiding reallocation for common case.

2004-05-20  Paolo Carlini  <pcarlini@suse.de>

	* include/bits/istream.tcc (operator>>(basic_istream<>&,
	basic_string<>&)): Use a temporary buffer, thus avoiding
	reallocation for common case.
	* testsuite/21_strings/basic_string/inserters_extractors/char/11.cc:
	New.
	* testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
	Likewise.

	* include/bits/istream.tcc: Const-ification of a few variables.

	* include/bits/ostream.tcc: Trivial formatting fixes and
	const-ification of some variables.

From-SVN: r82070