使用 boost::assign::list_of 初始化 std::vector<:<int>:vector >
Initialise a std::vector<std::vector<int> > with boost::assign::list_of
如何使用boost::assign::list_of将值放入类型为std::vector<std::vector<int> >
的对象中?或者你有什么其他的建议,我如何才能填充它的目的是单元测试?
我得到以下编译错误gcc 4.4.2
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_uninitialized.h: In static member function 'static _ForwardIterator std::__uninitialized_copy<<anonymous> >::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>, _ForwardIterator = std::vector<int, std::allocator<int> >*, bool <anonymous> = false]':
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_uninitialized.h:117: instantiated from '_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>, _ForwardIterator = std::vector<int, std::allocator<int> >*]'
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_uninitialized.h:257: instantiated from '_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>, _ForwardIterator = std::vector<int, std::allocator<int> >*, _Tp = std::vector<int, std::allocator<int> >]'
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_vector.h:1024: instantiated from 'void std::vector<_Tp, _Alloc>::_M_range_initialize(_ForwardIterator, _ForwardIterator, std::forward_iterator_tag) [with _ForwardIterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>, _Tp = std::vector<int, std::allocator<int> >, _Alloc = std::allocator<std::vector<int, std::allocator<int> > >]'
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_vector.h:1002: instantiated from 'void std::vector<_Tp, _Alloc>::_M_initialize_dispatch(_InputIterator, _InputIterator, std::__false_type) [with _InputIterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>, _Tp = std::vector<int, std::allocator<int> >, _Alloc = std::allocator<std::vector<int, std::allocator<int> > >]'
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_vector.h:303: instantiated from 'std::vector<_Tp, _Alloc>::vector(_InputIterator, _InputIterator, const _Alloc&) [with _InputIterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>, _Tp = std::vector<int, std::allocator<int> >, _Alloc = std::allocator<std::vector<int, std::allocator<int> > >]'
/boost/boost_1_51_0/boost/assign/list_of.hpp:163: instantiated from 'Container boost::assign_detail::converter<DerivedTAssign, Iterator>::convert(const Container*, boost::assign_detail::default_type_tag) const [with Container = std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >, DerivedTAssign = boost::assign_detail::generic_list<boost::assign_detail::generic_list<int> >, Iterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>]'
/boost/boost_1_51_0/boost/assign/list_of.hpp:142: instantiated from 'Container boost::assign_detail::converter<DerivedTAssign, Iterator>::convert_to_container() const [with Container = std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >, DerivedTAssign = boost::assign_detail::generic_list<boost::assign_detail::generic_list<int> >, Iterator = std::_Deque_iterator<boost::assign_detail::generic_list<int>, boost::assign_detail::generic_list<int>&, boost::assign_detail::generic_list<int>*>]'
/boost/boost_1_51_0/boost/assign/list_of.hpp:436: instantiated from 'boost::assign_detail::generic_list<T>::operator Container() const [with Container = std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >, T = boost::assign_detail::generic_list<int>]'
main.cc:1: instantiated from here
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_uninitialized.h:74: error: call of overloaded 'vector(boost::assign_detail::generic_list<int>&)' is ambiguous
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_vector.h:241: note: candidates are: std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with _Tp = int, _Alloc = std::allocator<int>]
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_vector.h:227: note: std::vector<_Tp, _Alloc>::vector(size_t, const _Tp&, const _Alloc&) [with _Tp = int, _Alloc = std::allocator<int>]
gcc/4.4.2/lib/gcc/x86_64-unknown-linux-gnu/4.4.2/../../../../include/c++/4.4.2/bits/stl_vector.h:215: note: std::vector<_Tp, _Alloc>::vector(const _Alloc&) [with _Tp = int, _Alloc = std::allocator<int>]
下面是我的代码:
std::vector< std::vector<int> > v = boost::assign::list_of
( boost::assign::list_of(1)(2) )
( boost::assign::list_of(3) )
( boost::assign::list_of(5)(6)(7)(8) );
#include <boost/range/algorithm.hpp>
#include <boost/foreach.hpp>
#include <boost/assign.hpp>
#include <iterator>
#include <iostream>
#include <ostream>
#include <vector>
int main()
{
using namespace boost;
using namespace assign;
using namespace std;
vector< vector<int> > v = list_of
( list_of(1)(2) )
( list_of(3) )
( list_of(5)(6)(7)(8) );
BOOST_FOREACH(const vector<int> &x, v)
{
copy(x,ostream_iterator<int>(cout," "));
cout << endl;
}
}
输出是:
1 2
3
5 6 7 8
我得到以下编译错误gcc 4.4.2
以下代码可以在GCC 4.4.6上运行:
vector< vector<int> > v;
v += list_of(1)(2),
list_of(3),
list_of(5)(6)(7)(8);
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