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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @author Peter Boros
* @date 2004/08/20
* @version $Id$
* @file selector.h
* @brief Selector class.
*/
#pragma once
#include <vector>
namespace fsa {
// {{{ class Selector
/**
* @class Selector
* @brief Simple (bitmap-like) selector class.
*/
class Selector {
private:
/** Selector */
std::vector<bool> _selector;
public:
/**
* @brief Default constructor.
*/
Selector() : _selector() {}
/**
* @brief Copy constructor.
*
* @param s Selector to copy.
*/
Selector(const Selector &s) : _selector(s._selector) {}
/**
* @brief Constructor.
*
* Set the selector from a bitmask.
*
* @param c Bitmask.
*/
Selector(unsigned int c) : _selector() { set(c); }
/**
* @brief Destructor.
*/
~Selector() {}
/**
* @brief Clear the selector.
*/
void clear();
/**
* @brief Set selector from bitmask.
*
* @param c Bitmask.
*/
void set(unsigned int c);
/**
* @brief Get size of selector.
*
* @return Size.
*/
unsigned int size() const { return _selector.size(); }
/**
* @brief Set an item in the selector.
*
* @param i Index.
*/
void select(unsigned int i);
/**
* @brief Unset an item in the selector.
*
* @param i Index.
*/
void unselect(unsigned int i);
/**
* @brief Get an item.
*
* @param i Index.
* @return Item.
*/
bool operator[](unsigned int i) const;
};
// }}}
} // namespace fsa
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