Yurij Zhacun wrote:

Hi. I start learning boost.Here is very simple code I can't compile.

typedef std::vector<LPCWSTR> type; type test; test[0] = (_T("1")); test[1] = (_T("2")); test[2] = (_T("3"));

std::for_each(test.begin(),test.end(), OutputDebugString(_1));

Got compilation error : ----------------------------------------------------------- error C2664: 'OutputDebugStringW' : cannot convert parameter 1 from 'boost::lambda:laceholder1_type' to 'LPCWSTR' -----------------------------------------------------------

Can anybody point me at mistakes I made in the code?

Since OutputDebugStringW (which is a result of OutputDebugString macro expansion) is a mere function, the expression OutputDebugString(_1) means that you actually try to call it and pass its result to the for_each. What you need is to create a functor that would delay that call. You should try something like this: std::for_each(test.begin(),test.end(), boost::lambda::bind(&OutputDebugString, boost::lambda::_1)); or std::for_each(test.begin(),test.end(), boost::bind(&OutputDebugString, _1)); The first is Boost.Lambda, the second is Boost.Bind.