Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/nsgmls/Vector.h

@@ -0,0 +1,72 @@
+/* $XConsortium: Vector.h /main/1 1996/07/29 17:08:00 cde-hp $ */
+// Copyright (c) 1994, 1996 James Clark
+// See the file COPYING for copying permission.
+
+#ifndef Vector_INCLUDED
+#define Vector_INCLUDED 1
+
+#include <stddef.h>
+#include "xnew.h"
+
+// This offers a subset of the interface offered by the standard C++
+// vector class as defined in the Jan 96 WP.
+// Code in SP currently assumes that size_type is size_t.
+
+#ifdef SP_NAMESPACE
+namespace SP_NAMESPACE {
+#endif
+
+template<class T>
+class Vector {
+public:
+  typedef size_t size_type;
+  typedef T *iterator;
+  typedef const T *const_iterator;
+  Vector() : ptr_(0), size_(0), alloc_(0) { }
+  Vector(size_t n) : ptr_(0), size_(0), alloc_(0) { append(n); }
+  ~Vector();
+  void resize(size_t n) {
+    if (n < size_)
+      erase(ptr_ + n, ptr_ + size_);
+    else if (n > size_)
+      append(n - size_);
+  }
+  Vector(size_t, const T &);
+  Vector(const Vector<T> &);
+  Vector<T> &operator=(const Vector<T> &);
+  void assign(size_t, const T &);
+  void push_back(const T &t) {
+    reserve(size_ + 1);
+    (void)new (ptr_ + size_++) T(t);
+  }
+  void insert(const_iterator p, size_t n, const T &t);
+  void insert(const_iterator p, const_iterator q1, const_iterator q2);
+  void swap(Vector<T> &);
+  void clear() { erase(ptr_, ptr_ + size_); }
+  size_t size() const { return size_; }
+  T &operator[](size_t i) { return ptr_[i]; }
+  const T &operator[](size_t i) const { return ptr_[i]; }
+  iterator begin() { return ptr_; }
+  const_iterator begin() const { return ptr_; }
+  T &back() { return ptr_[size_ - 1]; }
+  const T &back() const { return ptr_[size_ - 1]; }
+  void reserve(size_t n) {  if (n > alloc_) reserve1(n); }
+  iterator erase(const_iterator, const_iterator);
+private:
+  void append(size_t);
+  void reserve1(size_t);
+  
+  size_t size_;
+  T *ptr_;
+  size_t alloc_;		// allocated size
+};
+
+#ifdef SP_NAMESPACE
+}
+#endif
+
+#endif /* not Vector_INCLUDED */
+
+#ifdef SP_DEFINE_TEMPLATES
+#include "Vector.C"
+#endif