libstdc++ is an implementation of the Standard C++ Library, including the Standard Template Library (i.e. as specified by ANSI and ISO). Some notes on porting applications from libstdc++-2.90 (or earlier versions) to libstdc++-v3 can be found in the libstdc++3-doc package. After the installation of the package, look at: file://usr/share/doc/gcc-3.0-base/libstdc++/html/17_intro/porting-howto.html On Debian GNU/Linux you find additional documentation in the stl-manual package. After installing this package, point your browser to file://localhost/usr/share/doc/stl-manual/html/index.html Other documentation can be found: http://www.cs.rpi.edu/~musser/stl.html http://www.sgi.com/Technology/STL/ http://www.maths.warwick.ac.uk/cpp/pub/ http://www.dinkumware.com/htm_cpl/ with a good, recent, book on C++. A great deal of useful C++ documentation can be found in the C++ FAQ-Lite, maintained by Marshall Cline . It can be found at the following locations (this list was last updated on 2000/11/19): USA: http://www.cerfnet.com/~mpcline/c++-faq-lite/ Canada: http://new-brunswick.net/workshop/c++/faq Finland: http://www.utu.fi/~sisasa/oasis/cppfaq/ France: http://caor.ensmp.fr/FAQ/c++-faq-lite/ Germany: http://www.informatik.uni-konstanz.de/~kuehl/cpp/cppfaq.htm Spain: http://geneura.ugr.es/~jmerelo/c++-faq/ Taiwan: http://www.cis.nctu.edu.tw/c++/C++FAQ-English/ U.K.: http://www.cs.bham.ac.uk/~jdm/CPP/index.html Please send updates to this list as bug report for the g++ package.