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qHash: two arguments support for simple integer types (and QChar)

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Change-Id: I24bed73422fb1d2e90cf3dd4e5375e249b3dcac4
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
This commit is contained in:
Giuseppe D'Angelo 2012-04-13 19:01:16 +01:00 committed by Qt by Nokia
parent 06a5904c8f
commit 67d7f55db6
1 changed files with 16 additions and 16 deletions
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32
src/corelib/tools/qhash.h
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@ -58,32 +58,32 @@ class QByteArray;
class QString;
class QStringRef;
inline uint qHash(char key) { return uint(key); }
inline uint qHash(uchar key) { return uint(key); }
inline uint qHash(signed char key) { return uint(key); }
inline uint qHash(ushort key) { return uint(key); }
inline uint qHash(short key) { return uint(key); }
inline uint qHash(uint key) { return key; }
inline uint qHash(int key) { return uint(key); }
inline uint qHash(ulong key)
inline uint qHash(char key, uint seed = 0) { return uint(key) ^ seed; }
inline uint qHash(uchar key, uint seed = 0) { return uint(key) ^ seed; }
inline uint qHash(signed char key, uint seed = 0) { return uint(key) ^ seed; }
inline uint qHash(ushort key, uint seed = 0) { return uint(key) ^ seed; }
inline uint qHash(short key, uint seed = 0) { return uint(key) ^ seed; }
inline uint qHash(uint key, uint seed = 0) { return key ^ seed; }
inline uint qHash(int key, uint seed = 0) { return uint(key) ^ seed; }
inline uint qHash(ulong key, uint seed = 0)
{
if (sizeof(ulong) > sizeof(uint)) {
return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U));
return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed;
} else {
return uint(key & (~0U));
return uint(key & (~0U)) ^ seed;
}
}
inline uint qHash(long key) { return qHash(ulong(key)); }
inline uint qHash(quint64 key)
inline uint qHash(long key, uint seed = 0) { return qHash(ulong(key), seed); }
inline uint qHash(quint64 key, uint seed = 0)
{
if (sizeof(quint64) > sizeof(uint)) {
return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U));
return uint(((key >> (8 * sizeof(uint) - 1)) ^ key) & (~0U)) ^ seed;
} else {
return uint(key & (~0U));
return uint(key & (~0U)) ^ seed;
}
}
inline uint qHash(qint64 key) { return qHash(quint64(key)); }
inline uint qHash(QChar key) { return qHash(key.unicode()); }
inline uint qHash(qint64 key, uint seed = 0) { return qHash(quint64(key), seed); }
inline uint qHash(QChar key, uint seed = 0) { return qHash(key.unicode(), seed); }
Q_CORE_EXPORT uint qHash(const QByteArray &key, uint seed = 0);
Q_CORE_EXPORT uint qHash(const QString &key, uint seed = 0);
Q_CORE_EXPORT uint qHash(const QStringRef &key, uint seed = 0);