add cache for last used position and string length to UTF-8 wxString, dramatically improving performance of the code using indices to iterate over strings

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55333 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2008-08-28 19:19:11 +00:00
parent 8fad8b2e52
commit 68482dc584
4 changed files with 877 additions and 188 deletions

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