小编Nib*_*ose的帖子

我创建了一个环形缓冲区,我想使用boost将该类导入Python.当我试图得到它的错误.

ring.cpp: In function ‘void init_module_ring()’:
ring.cpp:130:16: error: wrong number of template arguments (1, should be 4)
 class_<Ring>("Ring").Please help me. Thanks in Advance.

这是我的代码:

#include <boost/python/def.hpp>
#include<iostream>
using namespace std;
using namespace boost::python;


template <class T>
class Ring
   {
   public:
   class iterator;
   public:
    unsigned int m_size;
    unsigned int pos;
    T *val;
    Ring():
    m_size(0),pos(0),val(NULL){};
    Ring(int size):m_size(size),pos(0){
        val=new T[m_size];
    };
    Ring(const Ring &other)
        {
        this->m_size = other.m_size;
        this->pos= other.pos;
        this->val = other.val;

        }
    ~Ring()
        {
        delete[] val;
        }
    void insert(T data)
        { …

如何在for循环中使用两个变量？

for j,k in zip(range(x,0,-1),range(y,-1,-1) 

我想在Swift中实现它.