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

Thanks. I add the import and namespace, but I still get the same arror: ../Utils.h: In function ‘void keySet(T&, std::vector&)’: ../Utils.h:175: error: use of ‘_1’ is ambiguous /usr/include/boost/lambda/core.hpp:69: error: first declared as ‘const boost::lambda::placeholder1_type& boost::lambda::<unnamed>::_1’ here --- nitin motgi wrote:

...

...

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

...

__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam

protection around

...

http://mail.yahoo.com _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org

http://lists.boost.org/mailman/listinfo.cgi/boost-users

...

-- Nitin Motgi

...

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org

http://lists.boost.org/mailman/listinfo.cgi/boost-users __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com