SWIG C ++到Python：警告（362）：operator =被忽略 [英] SWIG C++ to Python: Warning(362): operator= ignored

问题描述

我正在导出一个C ++类到Python，我注意到在编译期间，SWIG发出以下警告：

I am exporting a C++ class to Python and I noticed that during compilation, SWIG issued the following warning:

Warning(362): operator= ignored

我不知道为什么操作符被重载， SWIG文档，SWIG能够处理诸如作业之类的操作符

I am not sure why the operator is being overloaded, because it says in the SWIG documentation, that SWIG is capable of handling operators such as the assignment operator

我的类没有什么特别的，它被声明如下：

There is nothing special about my class, it is declared like this:

class Foo
{
public:
    Foo();
    Foo& operator= (const Foo&); 
    // etc ..
};

为什么SWIG无法为赋值运算符生成包装代码， / p>

Why is SWIG failing to generate wrapper code for the assignment operator, and how may I fix this?

推荐答案

在python中没有赋值（除了原始类型），只有指针的赋值。如果您要创建副本，则需要一个特殊的复制功能。

There is no assignment in python (other than in primitive types), only assignment of pointers. If you want to create a copy, you need a special copy function.

这篇关于SWIG C ++到Python：警告（362）：operator =被忽略的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！