how to freeing pointers using macro in c

Question

I want to write macro in c code to freeing many pointers like this :

FREE(ptr1, ptr2, ptr3, ptr4, ptrx);

For me, this is better than

Answer 1

Use a function with variable number of function arguments. Header: stdarg.h.

I had a little fun with the solution.

#define FREE( ... ) Free( &free_stop , __VA_ARGS__ , &free_stop )
//takes any number of pointer arguments,(at least one )( can also take NULL which is handled by free )

int free_stop ;

void Free( void* point , ... )  
{
    if( !point )
        return ;

    va_list list ;
    va_start( list , point ) ;

    void* p = va_arg( list , void* ) ;
    while( p != point ) 
    {
        free( p ) ;
        p = va_arg( list , void* ) ;
    }


    va_end( list ) ;

}

Usage:

FREE( ptr1 , ptr2 , ptr3 ) ;   //don't have to NULL terminate