複製一個結構陣列到另一個結構數組，它是較小

Question

我的結構數組有5個插槽

struct router* router[5]; 

比方說裏面有他們的元素，然後我讓

router[3] = NULL; 

是否有可能重新排列數組，使路由器[4]中的元素移動到路由器[3]，路由器[5]移動到路由器[4]等。

Answer 1

試試這個

void delete(struct router** router, int which, int size) { 
    int i; 
    // If these pointers have no other references to them then 
    // Then you should free the one being deleted at this point 
    for(i = which; i < size - 1; i++) { 
     router[i] = router[i + 1]; 
    } 
    router[i] = NULL; 

}