#include "stdafx.h"
#include <iostream>
using namespace std;

main()
{
int *p;
p=new int;
if(!p)
{cout<<"allocation failure\n";
return 1;
}
*p=20;
cout<<*p;
return 0;}

error c4430 missing type specifier int assumed 谁能告诉我怎么回事啊? 怎么改法

#include <iostream>
using namespace std;

int main()
{
  int * p;
  try
  {
    p = new int;
  }
  catch(bad_alloc & ba)
  {
    cout<<\"Caught the exception!\n\";
    cout<<ba.what()<<endl;
    exit(EXIT_FAILURE);
  }
  
  if(p != NULL)
  {
    *p = 20;
    cout<<*p<<endl;
  }
  else
  {
    cout<<\"p is null pointer.\n\";
  }
  
  delete p;
  system(\"pause\");
  return 0;
}