我有一个代码片段如下:
#include <boost/bind.hpp>
#include <boost/lambda/bind.hpp>
......................
...................
size_t MyCalass::MyFunction() const
{
using boost::lambda::_1;
using boost::lambda::_2;
using boost::lambda::bind;
return std::accumulate(m_memberObj.begin(), m_memberObj.end(),
size(), (_1 += bind(&MyCalass::GetLength, _2)));
}
在这里,毫无疑问, boost::lambda::bind 调用写在函数的最后一行。但我得到编译错误。它看起来像这样:
Error 70 error C2784: 'const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::arithmetic_assignment_action<Action>,boost::tuples::tuple<boost::lambda::lambda_functor<T>,boost::lambda::lambda_functor<Arg>>>> boost::lambda::operator +=(const boost::lambda::lambda_functor<T> &,const boost::lambda::lambda_functor<Arg> &)' : could not deduce template argument for 'const boost::lambda::lambda_functor<T> &' from 'stlp_std::basic_string<_CharT,_Traits,_Alloc>::size_type' z:\3rdParty\boost_1_41_0_patched\boost\lambda\detail\operator_lambda_func_base.hpp 225
当我像这样更改我的代码时:
#include <boost/bind.hpp>
#include <boost/lambda/bind.hpp>
......................
...................
size_t MyCalass::MyFunction() const
{
using boost::lambda::_1;
using boost::lambda::_2;
using boost::lambda::bind;
return std::accumulate(m_memberObj.begin(), m_memberObj.end(),
size(), (_1 += boost::lambda::bind(&MyCalass::GetLength, _2)));
}
它编译正确。
这是编译器错误吗?这个有补丁吗??