void function(int, int)
{
...
}
 
int main()
{
...
cout<< function <<endl;
...
}

C:\Program Files\Microsoft Visual Studio\MyProjects\VoorbeeldenInternet\PointersTutorialByNarue\Testing.cpp(39) : error C2440: 'initializing' : cannot convert from 'const void *' to 'const int *'
        Conversion from 'void*' to pointer to non-'void' requires an explicit cast

int compare ( const void *a, const void *b )
{
  const int *ia = a;
  const int *ib = b;
  ...
}

const int *ia = static_cast <const int*> (a);

#include <stdio.h>
 
int main ( void )
{
  int a[] = {1,2,3,4,5};
  int *p = a, *q = a + 5;
 
  printf ( "%td\n", p - q );
  printf ( "%td\n", q - p );
 
  return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
char *reverse ( const char *s )
{
  int i = 0, j = strlen ( s );
  char *save = malloc ( j + 1 );
 
  if ( save == NULL )
    return NULL;
 
  while ( j > 0 )
    save[i++] = s[--j];
  save[i] = '\0';
 
  return save;
}
 
int main ( void )
{
  char *p;
 
  p = reverse ( "J. Random Guy" );
  puts ( p );
  free ( p );
 
  return 0;
}

#include <iostream>
 
using namespace std;
 
char *reverse ( const char *s )
{
  int i = 0, j = strlen ( s );
  char *save = new (char) ( j + 1 );
 
  if ( save == NULL )
    return NULL;
 
  while ( j > 0 )
    save[i++] = s[--j];
  save[i] = '\0';
 
  return save;
}
 
int main ( void )
{
  char *p;
 
  p = reverse ( "J. Random Guy" );
 
  cout<< p <<endl;
 
  delete p;
 
  return 0;
}

char *save = malloc ( j + 1 );

char *save = new char[j + 1];

delete [] p;

char *save = (char*)malloc ( j + 1 );

char *p = malloc ( sizeof "This is a test" );

char *p = new char[sizeof "This is a test"];

base = malloc ( 2 * 3 * sizeof *base );
  p = malloc ( 2 * sizeof *p );

base = new int[2];
  p = new int*[3];

delete []base;
 
  for (i = 0; i < 3; i++)
	  delete [i] p;

#include <iostream>

using namespace std;

int main ()
{
	int **p;
	int i, j;

	p = new int*[2];

	for ( i = 0; i < 2; i++ ) 
	{
		p[i] = new int[3];
		for ( j = 0; j < 3; j++ )
			*( *( p + i ) + j ) = i * j;
	}

	for ( i = 0; i < 2; i++ )
	{
		for ( j = 0; j < 3; j++ )
		             cout<< p[i][j];
	cout<<endl;
	}

	for (i = 0; i < 2; i++)
		delete [] p[i];

	delete [] p;

	return 0;
}

free (base);
free (p);