c++ - 没有匹配的调用函数 (type&)

Question

伙计们! 编译项目时出错

LoadConnectorModule.cpp:59:72: error: no matching function for call to ‘LoadConnectorModule::generateFileFoundResponse(char*&, int&, char ( * )[1024], int&)’
         generateFileFoundResponse(dataBuffer, dataLength, &fileName, fd);
                                                                        ^
LoadConnectorModule.cpp:59:72: note: candidate is:
In file included from LoadConnectorModule.cpp:1:0:
LoadConnectorModule.h:16:10: note: void LoadConnectorModule::generateFileFoundResponse(char*, int, char*, int)
     void generateFileFoundResponse(char* dataBuffer, int dataLength, char *fileName, int fd);

这里调用了函数generateFileFoundResponse

        char * dataBuffer = NULL;
        char fileName[Utils::default_message_size];
        int dataLength;
        generateFileFoundResponse(dataBuffer, dataLength, &fileName, fd);

并声明为

    void generateFileFoundResponse(char* dataBuffer, int dataLength, char *fileName, int fd);

并且该类中的所有其他方法都存在相同的错误。你有什么idea，如何解决这个问题？

Answer 1

fileName 参数是一个char*，但是您传递了一个char (*) [1024](指向数组的指针)。只需传递数组本身并让它衰减为指针:

generateFileFoundResponse(dataBuffer, dataLength, fileName, fd);
//                                                ^ no &