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

From: nitin motgi (nitin.motgi_at_[hidden])
Date: 2006-02-22 19:23:34

>>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<int, std::allocator<int> >&)':
>>../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 <boost/lambda/lambda.hpp>
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_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>

--
Nitin Motgi