Re: [Boost-users] How can I use boost::lambda bind libray in a template

...

template <class T> void keySet(T& aMap, vector<int>& keySet) { transform( aMap.begin(), aMap.end(), back_inserter(keySet), bind(&T::value_type::first, _1) );

}

here is the error: g++ -O0 -g3 -Wall -c -fmessage-length=0 -oBlockGrouper.o ../BlockGrouper.cpp ../Utils.h: In function 'void keySet(T&, std::vector&)': ../Utils.h:149: error: '_1' was not declared in this scope

Based on your errors it looks like _1 is not declared in the scope. Did you miss adding these: #include using boost::lambda::_1; -- Nitin Motgi

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-- Nitin Motgi