/usr/include/x86_64-linux-gnu/qcc/StringMapKey.h is in liballjoyn-common-dev-1509 15.09a-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | /**
* @file
*/
/******************************************************************************
* Copyright AllSeen Alliance. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
******************************************************************************/
#ifndef _QCC_STRINGMAPKEY_H
#define _QCC_STRINGMAPKEY_H
#include <qcc/platform.h>
#include <qcc/Util.h>
#include <qcc/String.h>
#include <string.h>
#include <qcc/STLContainer.h>
namespace qcc {
/**
* StringMapKey is useful when creating a std:map that wants a std::string
* as its key. It is preferable to using a std::string directly since
* doing so would require all lookup operations on the map to first create
* a std::string (rather than using a simple const char*).
*/
class StringMapKey {
public:
/**
* Create a backed version of the StringMapKey
* Typically, this constructor is used when inserting into a map
* since it causes storage to be allocated for the string
*
* @param key String whose value will be copied into StringMapKey
*/
StringMapKey(const qcc::String& key) : charPtr(NULL), str(key) { }
/**
* Create an unbacked version of the StringMapKey
* Typically, this constructor is used when forming a key to pass to
* map::find(), etc. The StringMapKey is a simple container for the
* passed in char*. The char* arg to this constructor must remain
* valid for the life of the StringMapKey.
*
* @param key char* whose value (but not contents) will be stored
* in the StringMapKey.
*/
StringMapKey(const char* key) : charPtr(key), str() { }
/**
* Get a char* representation of this StringKeyMap
*
* @return char* representation this StringKeyMap
*/
inline const char* c_str() const { return charPtr ? charPtr : str.c_str(); }
/**
* Return true if StringMapKey is empty.
*
* @return true iff StringMapKey is empty.
*/
inline bool empty() const { return charPtr ? charPtr[0] == '\0' : str.empty(); }
/**
* Return the size of the contained string.
*
* @return size of the contained string.
*/
inline size_t size() const { return charPtr ? strlen(charPtr) : str.size(); }
/**
* Less than operation
*/
inline bool operator<(const StringMapKey& other) const { return ::strcmp(c_str(), other.c_str()) < 0; }
/**
* Equals operation
*/
inline bool operator==(const StringMapKey& other) const { return ::strcmp(c_str(), other.c_str()) == 0; }
private:
const char* charPtr;
qcc::String str;
};
} // End of qcc namespace
namespace std {
/**
* Functor to compute StrictWeakOrder
*/
template <>
struct less<qcc::StringMapKey> {
inline bool operator()(const qcc::StringMapKey& a, const qcc::StringMapKey& b) const { return ::strcmp(a.c_str(), b.c_str()) < 0; }
};
} // End of std namespace
_BEGIN_NAMESPACE_CONTAINER_FOR_HASH
/**
* Functor to compute a hash for StringMapKey suitable for use with
* std::unordered_map, std::unordered_set, std::hash_map, std::hash_set.
*/
template <>
struct hash<qcc::StringMapKey> {
inline size_t operator()(const qcc::StringMapKey& k) const { return qcc::hash_string(k.c_str()); }
};
_END_NAMESPACE_CONTAINER_FOR_HASH
#endif
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