#include <iostream>
#include <vector>
#include <deque>
#include <stack>
using namespace std;



int main(void)
{

    deque<int> deq(10,5);
    
    stack<int> sta(deq);//为什么提醒不能转换呢


    return 0;
}

编译通不过.....

提示：

--------------------Configuration: main - Win32 Debug--------------------
Compiling...
main.cpp
e:\练习文件\【c++】\main.cpp(18) : error C2664: '__thiscall std::stack<int,class std::deque<int,class std::allocator<int> > >::std::stack<int,class std::deque<int,class std::allocator<int> > >(const class std::allocator<int> &)' : cannot convert par
ameter 1 from 'class std::deque<int,class std::allocator<int> >' to 'const class std::allocator<int> &'
        Reason: cannot convert from 'class std::deque<int,class std::allocator<int> >' to 'const class std::allocator<int>'
        No constructor could take the source type, or constructor overload resolution was ambiguous
执行 cl.exe 时出错.

main.obj - 1 error(s), 0 warning(s)



我用vc6，  用别的编译器又可以通过哦.....

恩，找到这个：
     explicit stack(const allocator_type& _Al = allocator_type())
        : c(_Al) {}

其中：     typedef _C::allocator_type allocator_type;