这个夹板警告的含义是什么？我可能做错了什么？

Question

这是代码行:

bool cpfs_utimens(struct Cpfs *, char const *path, struct timespec const[2]);

运行夹板3.1.2生成此警告:

cpfs.h:21:74: Function parameter times declared as manifest array (size
                 constant is meaningless)
  A formal parameter is declared as an array with size.  The size of the array
  is ignored in this context, since the array formal parameter is treated as a
  pointer. (Use -fixedformalarray to inhibit warning)

命名参数没有区别.

Answer 1

这意味着当您声明参数时struct timespec const[2],2在[和之间]不需要.将代码更改为:

bool cpfs_utimens(struct Cpfs *, char const *path, struct timespec const[]);

在C/C++中,您不能要求将特定大小的数组作为参数,因为数组被视为指针而指针没有大小.