c++ - Overloading insertion operator in Boost.Log (Boost 1.60.0) -

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i trying overload operator<< can log vector<t>s in boost.log. tried overloading formatting_ostream:

template <typename t> inline boost::log::formatting_ostream &  operator<< (boost::log::formatting_ostream & o, const std::vector<t> & v) {     return o; }

this not compile boost 1.60.0

i using following logger:

typedef boost::log::sources::severity_logger<     boost::log::trivial::severity_level > my_logger_t;

the errors see are:

.../boost_1_60_0/build/include/boost/log/utility/formatting_ostream.hpp:799:19:

error: no match operator<< (operand types boost::log::v2s_mt_posix::basic_formatting_ostream<char>::ostream_type {aka std::basic_ostream<char>} , const std::vector<int>)

strm.stream() << value

as understand, overloading doesn't work!! because compiler still calling pre-defined operator<< makes strm.stream() << value call.

am doing wrong? what's best way go this?

thanks!

this looks adl problem: since operator<< in neither boost::log nor std namespaces, doesn't picked during name lookup.


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