c++ - 从 std::streambuf 继承时出现不兼容的析构函数编译器警告

Question

从 std::streambuf 继承时，我收到 ICL 编译器警告，指出析构函数不兼容，您知道我在这里做错了什么吗？使其成为虚拟析构函数也不起作用。

warning #809: exception specification for virtual function "CAbcBuffer::~CAbcBuffer" is incompatible with that of overridden function "std::basic_streambuf<_Elem, _Traits>::~basic_streambuf [with _Elem=char, _Traits=std::char_traits]"

class CAbcBuffer : public std::streambuf
{
    protected:
        /** Work buffer */
        char *buffer;
    public:
        explicit CAbcBuffer()
        {
            /*
            Stores the beginning pointer, the next pointer, and the end pointer for the 
            input buffer
            */
            buffer = new char[100];
            std::streambuf::setg(buffer, buffer, buffer);
        }

        ~CAbcBuffer() {
            delete [] buffer;
        }
}

Answer 1

您缺少析构函数的 throw() 声明。这将解决问题:

~CAbcBuffer() throw() {
    delete [] buffer;
}