text: /*
   * vector.h:
   * simple vectors
   *
   * Copyright (c) 2001 Chris Lightfoot. All rights reserved.
   *
   * $Id: vector.h,v 1.1 2003/10/19 06:44:33 pdw Exp $
   *
   */
  
  #ifndef __VECTOR_H_ /* include guard */
  #define __VECTOR_H_
  
  typedef union _item {
      void *v;
      long l;
  } item;
  
  #define _inline inline
  
  static _inline item item_long(const long l) { item u; u.l = l; return u; }
  static _inline item item_ptr(void *const v) { item u; u.v = v; return u; }
  
  typedef struct _vector{
      item *ary;
      size_t n, n_used;
  } *vector;
  
  vector vector_new(void);
  void vector_delete(vector);
  void vector_delete_free(vector);
  
  void  vector_push_back(vector, const item);
  void  vector_pop_back(vector);
  item vector_back(const vector);
  
  item *vector_remove(vector, item *t);
  
  void  vector_reallocate(vector, const size_t n);
  
  /* A macro to iterate over a vector */
  #define vector_iterate(_v, _t)  for ((_t) = (_v)->ary; (_t) < (_v)->ary + (_v)->n_used; ++(_t))
  
  #endif /* __VECTOR_H_ */
  