/usr/include/xercesc/util/Hashers.hpp is in libxerces-c-dev 3.2.0+debian-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id: Hashers.hpp 679382 2008-07-24 12:09:39Z amassari $
*/
#if !defined(XERCESC_INCLUDE_GUARD_HASHERS_HPP)
#define XERCESC_INCLUDE_GUARD_HASHERS_HPP
#include <xercesc/util/XMLString.hpp>
XERCES_CPP_NAMESPACE_BEGIN
//
// Common hashers. Only widely-used hashers should be placed here.
//
/**
* Hasher for keys that are const XMLCh*.
*/
struct StringHasher
{
/**
* Returns a hash value based on the key
*
* @param key the key to be hashed
* @param mod the modulus the hasher should use
*/
XMLSize_t getHashVal(const void* key, XMLSize_t mod) const
{
return XMLString::hash ((const XMLCh*)key, mod);
}
/**
* Compares two keys and determines if they are semantically equal
*
* @param key1 the first key to be compared
* @param key2 the second key to be compared
*
* @return true if they are equal
*/
bool equals(const void *const key1, const void *const key2) const
{
return XMLString::equals ((const XMLCh*)key1, (const XMLCh*)key2);
}
};
/**
* Hasher for keys that are pointers.
*/
struct PtrHasher
{
/**
* Returns a hash value based on the key
*
* @param key the key to be hashed
* @param mod the modulus the hasher should use
*/
XMLSize_t getHashVal(const void* key, XMLSize_t mod) const
{
return ((XMLSize_t)key) % mod;
}
/**
* Compares two keys and determines if they are semantically equal
*
* @param key1 the first key to be compared
* @param key2 the second key to be compared
*
* @return true if they are equal
*/
bool equals(const void *const key1, const void *const key2) const
{
return key1 == key2;
}
};
XERCES_CPP_NAMESPACE_END
#endif
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