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Full Discussion: void pointer
Top Forums Programming void pointer Post 302655727 by shamrock on Wednesday 13th of June 2012 03:23:47 PM
Old 06-13-2012
Quote:
Originally Posted by vlm
it worked fine.But when I did this for many void* in a loop

Code:
main(){
   void** a;
   a=(void**)malloc(n*sizeof(void*));
   for(int i=0;i<n;i++)
      fun(a[i]);//call the same function as above
}

void fun(void **b){
  //do things
}

it returns segmentation fault.
Dont know what code is inside fun but you cant dereference a void*...besides a[i] is a void* not void** so definition of fun needs to change to "void fun(void *b) {...}"
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SPLDOUBLYLINKEDLIST(3)							 1						    SPLDOUBLYLINKEDLIST(3)

The SplDoublyLinkedList class

INTRODUCTION
The SplDoublyLinkedList class provides the main functionalities of a doubly linked list. CLASS SYNOPSIS
SplDoublyLinkedList SplDoublyLinkedListIteratorArrayAccessCountable Methods o public SplDoublyLinkedList::__construct (void ) o public void SplDoublyLinkedList::add (mixed $index, mixed $newval) o public mixed SplDoublyLinkedList::bottom (void ) o public int SplDoublyLinkedList::count (void ) o public mixed SplDoublyLinkedList::current (void ) o public int SplDoublyLinkedList::getIteratorMode (void ) o public bool SplDoublyLinkedList::isEmpty (void ) o public mixed SplDoublyLinkedList::key (void ) o public void SplDoublyLinkedList::next (void ) o public bool SplDoublyLinkedList::offsetExists (mixed $index) o public mixed SplDoublyLinkedList::offsetGet (mixed $index) o public void SplDoublyLinkedList::offsetSet (mixed $index, mixed $newval) o public void SplDoublyLinkedList::offsetUnset (mixed $index) o public mixed SplDoublyLinkedList::pop (void ) o public void SplDoublyLinkedList::prev (void ) o public void SplDoublyLinkedList::push (mixed $value) o public void SplDoublyLinkedList::rewind (void ) o public string SplDoublyLinkedList::serialize (void ) o public void SplDoublyLinkedList::setIteratorMode (int $mode) o public mixed SplDoublyLinkedList::shift (void ) o public mixed SplDoublyLinkedList::top (void ) o public void SplDoublyLinkedList::unserialize (string $serialized) o public void SplDoublyLinkedList::unshift (mixed $value) o public bool SplDoublyLinkedList::valid (void ) PHP Documentation Group SPLDOUBLYLINKEDLIST(3)
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