C Function is deprecated

Question

I used the code in below link:

Readline Library

And I defined a struct like this

typedef struct {
  char *name;           /* User printable name of the function. */
  Function *func;       /* Function to call to do the job. */
  char *doc;            /* Documentation for this function.  */
} COMMAND;

When I compile the code the compiler displays these warnings:

"Function is deprecated [-Wdeprecated-declarations]"

So what type should I change if I cannot use the function type?

Answer 1

Function is a typedef (an alias of a pointer to function returning int) marked as deprecated by the library:

typedef int Function () __attribute__ ((deprecated));

Just use:

typedef struct {
  char *name;            /* User printable name of the function. */
  int (*func)();         /* Function to call to do the job. */
  char *doc;             /* Documentation for this function.  */
} COMMAND;