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// 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() : size_(0), ptr_(0), alloc_(0) { }
Vector(size_t n) : ptr_(0), size_(0), alloc_(0) { append(n); }
virtual ~Vector();
void resize(size_t n) {
if (n < size_)
erase(ptr_ + n, ptr_ + size_);
else if (n > size_)
append(n - size_);
}
#ifndef NC
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);
size_++;
}
void insert(const_iterator p, size_t n, const T &t);
void insert(const_iterator p, const_iterator q1, const_iterator q2);
#endif
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:
#ifdef NC
Vector(const Vector<T> &);
void operator=(const Vector<T> &);
#endif
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.cxx"
#endif
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