| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2000 The Apache Software Foundation. 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. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR |
| * ITS 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, International |
| * Business Machines, Inc., http://www.ibm.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| #include "XalanBitmap.hpp" |
| |
| |
| |
| #include <algorithm> |
| |
| |
| |
| // Pre-constructed masks for bit twiddling. Update these if not using chars for storing the bits. |
| static const int theSetMasks[XalanBitmap::eBitsPerUnit] = { 1, 2, 4, 8, 16, 32, 64, 128 }; |
| static const int theClearMasks[XalanBitmap::eBitsPerUnit] = { ~1, ~2, ~4, ~8, ~16, ~32, ~64, ~128 }; |
| |
| |
| |
| XalanBitmap::XalanBitmap(size_type theSize) : |
| m_size(theSize), |
| m_bitmap(size_type((theSize + eBitsPerUnit) / eBitsPerUnit), BitmapVectorType::value_type(0)) |
| { |
| } |
| |
| |
| |
| XalanBitmap::~XalanBitmap() |
| { |
| } |
| |
| |
| |
| bool |
| XalanBitmap::isSet(size_type theBit) const |
| { |
| if (theBit >= m_size) |
| { |
| return false; |
| } |
| else |
| { |
| return m_bitmap[theBit / eBitsPerUnit] & theSetMasks[theBit % eBitsPerUnit] ? true : false; |
| } |
| } |
| |
| |
| |
| void |
| XalanBitmap::set(size_type theBit) |
| { |
| if (theBit < m_size) |
| { |
| m_bitmap[theBit / eBitsPerUnit] |= theSetMasks[theBit % eBitsPerUnit]; |
| } |
| } |
| |
| |
| |
| void |
| XalanBitmap::clear(size_type theBit) |
| { |
| if (theBit < m_size) |
| { |
| m_bitmap[theBit / eBitsPerUnit] &= theClearMasks[theBit % eBitsPerUnit]; |
| } |
| } |
| |
| |
| |
| void |
| XalanBitmap::toggle(size_type theBit) |
| { |
| if (theBit < m_size) |
| { |
| m_bitmap[theBit / eBitsPerUnit] ^= theSetMasks[theBit % eBitsPerUnit]; |
| } |
| } |
| |
| |
| |
| void |
| XalanBitmap::clearAll() |
| { |
| #if !defined(XALAN_NO_NAMESPACES) |
| using std::fill; |
| #endif |
| |
| fill(m_bitmap.begin(), m_bitmap.end(), 0); |
| } |