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void** syntax question

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Join Date: Aug 2007

Posts: 4

Reputation: jsap is an unknown quantity at this point

Solved Threads: 1

jsap

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Newbie Poster

void syntax question**

Sep 7th, 2007

I have a function that takes a void** and I want to pass an integer in to the function but can not seem to figure out the syntax

here is the function prototype

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
bool pop(Node **stack, void **data)
bool pop(Node **stack, void **data)

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Join Date: Jun 2007

Posts: 322

Reputation: Hamrick will become famous soon enough

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Hamrick

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Posting Whiz

Re: void syntax question**

Sep 7th, 2007

I think you have to do something like this because int** isn't a compatible type with void**.

 Help with Code Tags 
 C++ Syntax (Toggle Plain Text) 
int i = 123;
int *p = &i;
 
void pop( void **data ) {
  *data = p;
}
 
int main() {
  int *q;
  void *pv;
 
  pop( &pv );
  q = static_cast<int*>( pv );
 
  return 0;
}
int i = 123;
int *p = &i;

void pop( void **data ) {
  *data = p;
}

int main() {
  int *q;
  void *pv;

  pop( &pv );
  q = static_cast<int*>( pv );

  return 0;
}