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String.hpp

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/*==========================================================================
 * Copyright (c) 2001 Carnegie Mellon University.  All Rights Reserved.
 *
 * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
 * is subject to the terms of the software license set forth in the LICENSE
 * file included with this software, and also available at
 * http://www.lemurproject.org/license.html
 *
 *==========================================================================
*/


#ifndef _STRINGH_
#define _STRINGH_

#include "common_headers.hpp"
#include "ByteHash.hpp"

class String : public string {
  public:
    String() : string() {}
    String(const char * p) : string(p) {}
    String(const string & s) : string(s) {}
    String(unsigned int n, char c) : string(n, c) {}

    unsigned int Hash() const { return ByteHash(data(),length(),0); }
    unsigned int hash() const { return Hash(); } 
    operator const char *() const { return c_str(); }
    friend ostream &operator<<(ostream &os, const String &ts);
    friend istream &operator>>(istream &is, String &ts);
};

#endif

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