char *类型的值不能用于初始化类型为&"char&"的实体. [英] Value of type char* cannot be used to initialize an entity of type "char"

问题描述

我是C ++的新手，我想做一些简单的事情，例如写磁盘char []的内容.

I'm new to C++ and I'd like to do simple stuff such as writting to disk the content of a char[]

我很难过.

这是我的代码:

char x[256],y[256],z[256];

        sprintf( x, "%.2f", pCommandHandling->m_dtHandleInformation[i].Xfrms.translation.x ); //pCommandHandling->m_dtHandleInformation[i].Xfrms.translation.x  is a float struct


        sprintf( y, "%.2f", pCommandHandling->m_dtHandleInformation[i].Xfrms.translation.y ); //pCommandHandling->m_dtHandleInformation[i].Xfrms.translation.y  is a float struct


        sprintf( z, "%.2f", pCommandHandling->m_dtHandleInformation[i].Xfrms.translation.z ); //pCommandHandling->m_dtHandleInformation[i].Xfrms.translation.z  is a float struct

    FILE *tracker_file = fopen("NDI_FiMe.TMP","w");
                char buffer[] = {x,";",y,";",z};
                fwrite(buffer , sizeof(char), sizeof(buffer), tracker_file);
                fclose(tracker_file);

我遇到的问题是我得到了

The problem I'm having is that I get:

IntelliSense:"char *"类型的值不能用于初始化"char"类型的实体

IntelliSense: a value of type "char *" cannot be used to initialize an entity of type "char"

推荐答案

您不能将char数组(x)放在char列表中.如错误消息所述.如果要将一个char数组复制到另一个char数组，请参见strcat系列函数.

You can't put a char array (x) in a list of chars. As the error message says. If you want to copy a char array into another char array see the strcat family of functions.

下一个错误涉及sizeof.它不计算字符串的长度.现在，当您使用它时，它将给出4:缓冲区指针的大小.有一个strlen函数用于获取C字符串的长度.

The next error involves sizeof. It does not compute the length of a string. As you are using it now it will give a 4: the size of the buffer pointer. There is a strlen function for getting the length of C string.

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