Pointer to an array in C++

I'm a C++ noob, I guess that's the reason for the problems. I'm trying to write bubble sort using C- style arrays in C++(this is a conscious decision, so please don't tell me use vectors, I know vectors are better). Here's my code

#include <iostream>
#include <cstdlib>

void bubble_sort(int* , int);

int main(){
  int a[8] = {12, 6,17,8,3,2,0,5};
  //int size = sizeof(a)/sizeof(int);
  bubble_sort(a,8);
}//end of main

void bubble_sort(int* a, int size){

  for(int j=0; j< size-1; j++){
    for(int i=0; i<size-2; i++){
      if(a[i] > a[i++]){
        int temp = a[i++];
        a[i++] = a[i];
        a[i] = temp;
      }//end of if
    }//end of inner for
  }//end of outer for

  int k=0;
  while(k<size){
    std::cout<< a[i] << "," ;
    k++
  }
  std::cout<<endl;

}//end of bubble_sort

Here's my error

src.cpp: In function ‘int main()’:
src.cpp:9:19: error: invalid conversion from ‘int’ to ‘int*’ [-fpermissive]
   bubble_sort(*a,8);
                   ^
src.cpp:4:6: error:   initializing argument 1 of ‘void bubble_sort(int*, int)’ [-fpermissive]
 void bubble_sort(int* , int);
      ^
src.cpp: In function ‘void bubble_sort(int*, int)’:
src.cpp:26:19: error: ‘i’ was not declared in this scope
     std::cout<< a[i] << "," ;
                   ^
src.cpp:28:3: error: expected ‘;’ before ‘}’ token
   }
   ^
src.cpp:29:14: error: ‘endl’ was not declared in this scope
   std::cout<<endl;
              ^
src.cpp:29:14: note: suggested alternative:
In file included from /usr/include/c++/4.8/iostream:39:0,
                 from src.cpp:1:
/usr/include/c++/4.8/ostream:564:5: note:   ‘std::endl’
     endl(basic_ostream<_CharT, _Traits>& __os)

Any help appreciated.