结构体函数指针

#include   <stdio.h>typedef struct                                                                                   

 {                 int  a; int  b;                                                                                           

  unsigned int (*init_mptr)(unsigned int ptr1,unsigned int len);

 } testmap;                                                                                      

unsigned int funtest(unsigned int  ptr1,unsigned int,len)

{                                                            

                                               return len+20+ptr1; }int main(int argc,char *argv[]){  int a,b;                                                                                         

   a=1;                                                                                             

  testmap *test1; testmap test;test1=&test; test1->init_mptr=funtest; printf("\na=%d\n",a);          b=(*(test1->init_mptr))(a,40);                          printf("\nb=%d\n",b);return 0; }       

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