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问题描述
指针和双指针有什么区别
为什么要使用第二个?
char *a; //Points to a char
char **b; //Why doesn't this also point char
解决方案
双指针"只是指向另一个指针的指针.在您的示例中，指向该字符的指针的指针.
编辑实际上，这是在此处回答的.. >
What is the difference between a pointer and a double pointer
Why would the second one ever be used?
char *a; //Points to a char
char **b; //Why doesn't this also point char
解决方案
A "double pointer" is just a pointer to another pointer. In your example, a pointer that points to a pointer that points to a char.
EDITActually this was answered here.
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