int.RVec.h
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:3k
- // -*- C++ -*-
- /*-
- * Copyright (c) 1997 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the Network Research
- * Group at Lawrence Berkeley National Laboratory.
- * 4. Neither the name of the University nor of the Laboratory may be used
- * to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- /*
- * RVec is a resizing vector.
- * Automatically resize the vector (and zero-fill the unused slots)
- * when elements beyond the end are accessed.
- *
- * RVecs are zero-filled on init.
- * Vecs are garbage-filled on init.
- */
- #ifndef _intRVec_h
- #ifdef __GNUG__
- #pragma interface
- #endif
- #define _intRVec_h 1
- #include "int.Vec.h"
- class intRVec : public intVec
- {
- protected:
- void grow(const int n);
- public:
- intRVec() : intVec() {};
- intRVec(int l) : intVec(l,0) {};
- intRVec(int l, int fill_value) : intVec(l,fill_value) {};
- intRVec(const intVec&v) : intVec(v) {};
- ~intRVec() {};
- int& operator [] (int n);
- int viable_range(const int n);
- };
- inline int
- intRVec::viable_range (const int n)
- {
- return n >= 0 && n < len;
- }
- inline int&
- intRVec::operator[] (int n)
- {
- if (n < 0)
- range_error();
- if (n >= len)
- grow(n + 1);
- return s[n];
- }
- #endif