re PR libstdc++/18654 (Shrink-to-fit std::string::reserve() calls can reallocate & copy string contents unnecessarily)

2004-11-29  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/18654
	* include/bits/basic_string.tcc (_Rep::_S_create): When shrinking,
	do not round to pagesize.
	* testsuite/21_strings/basic_string/capacity/char/18654.cc: New.
	* testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc: New.

From-SVN: r91466