If this happens, hover the mouse pointer over the red circle to display the error message, make the needed correction, and save the file again.

如果出现了此情况，请将鼠标指针悬停在红色圆圈上方以显示错误消息，然后进行必要的更正并再次保存文件。

youdao

This error occurs if a program passes an invalid pointer value or if the length of the buffer is too small.

如果程序传递了无效的指针值，或者如果缓冲区的长度太小会发生此错误。

youdao

In this... abomination, "she waved at the screen," passing a NULL pointer is a programming error, as the documentation for the function clearly states.

在这里，“她(译注：指guru)面对屏幕挥了挥手，”传入一个空指针是一个编程错误，就像这个程序的文档写的那样。

youdao

Number one, the basic structure is that you have a pointer and it points over to a pointee, but the pointer and pointee are separate and the common error is to set up a pointer but to forget to give it a pointee.

第一，基本结构是，你有一个,指向数据的指针，但是那个指针和数据,是分开的，通常错误是声明了一个指针,但是没有指向一个数据。

哈佛公开课 - 计算机科学课程节选