All, I'm attempting to upgrade to boost_1_34_0 from boost_1_33_1 and I get the following warnings from a hashed_unique index. The same code compiles clean on boost_1_33_1 with gcc-4.1.1 and gcc-4.1.2. Am I doing something wrong or this is a deficiency introduced in 1_34_0? Thanks, Marius Sample code: boost::multi_index::hashed_unique < boost::multi_index::tag<server>, boost::multi_index::const_mem_fun < SessionLink, int, &SessionLink::serverFD > > Generated warnings: /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning: passing 'bool' chooses 'int' over 'long unsigned int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning: passing 'bool' chooses 'int' over 'long int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning: passing 'bool' chooses 'int' over 'unsigned int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:353: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp: In member function 'size_t boost::hash<unsigned char>::operator()(unsigned char) const': /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:356: warning: passing 'unsigned char' chooses 'int' over 'long unsigned int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:356: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:356: warning: passing 'unsigned char' chooses 'int' over 'long int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:356: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:356: warning: passing 'unsigned char' chooses 'int' over 'unsigned int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:356: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp: In member function 'size_t boost::hash<short unsigned int>::operator()(short unsigned int) const': /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:361: warning: passing 'short unsigned int' chooses 'int' over 'long unsigned int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:361: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:361: warning: passing 'short unsigned int' chooses 'int' over 'long int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:361: warning: in call to 'size_t boost::hash_value(int)' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:361: warning: passing 'short unsigned int' chooses 'int' over 'unsigned int' /home/mlazer/boost_1_34_0/boost/functional/hash/hash.hpp:361: warning: in call to 'size_t boost::hash_value(int)' ********************************************************************** This communication and all information (including, but not limited to, market prices/levels and data) contained therein (the "Information") is for informational purposes only, is confidential, may be legally privileged and is the intellectual property of ICAP plc and its affiliates ("ICAP") or third parties. No confidentiality or privilege is waived or lost by any mistransmission. The Information is not, and should not be construed as, an offer, bid or solicitation in relation to any financial instrument or as an official confirmation of any transaction. The Information is not warranted, including, but not limited, as to completeness, timeliness or accuracy and is subject to change without notice. ICAP assumes no liability for use or misuse of the Information. All representations and warranties are expressly disclaimed. The Information does not necessarily reflect the views of ICAP. Access to the Information by anyone else other than the recipient is unauthorized and any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it is prohibited. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. **********************************************************************