Details
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Bug
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Resolution: Fixed
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P2: Important
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6.5.2, 6.6.0 Beta2, 6.8.0 Beta1
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None
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Ubuntu 20.04, Clang 15, GCC 11, GCC 9
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3
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878077de2 (dev), 81adaf909 (dev), 72c3ae0a8 (6.8), 13d2398e0 (6.7), 705cec8ac (tqtc/lts-6.5)
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Foundation Sprint 110, Foundation Sprint 111, Foundation Sprint 112
Description
Besides QTBUG-116080, we also have an unintended implementation of qHash(bool) via the 1-to-2-arg adapter (QTBUG-116971) and qHash(int)
. The two functions differ in the relative sequence of seed xoring and bit-mixing, making
- qHash(1, seed),
- qHash(true, seed)
produce different values, for general seed != 0.
This doesn't look fixable in Qt 6, as all involved overloads are inline, therefore immutable.
Attachments
Issue Links
- relates to
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- Closed
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| For Gerrit Dashboard: QTBUG-126674 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 571597,2 | tst_QHashFunctions: check bool/integral consistency | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 571598,3 | qHash(): add explicit bool overload | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 575796,2 | tst_QHashFunctions: check bool/integral consistency | 6.8 | qt/qtbase | Status: MERGED | +2 | 0 |
| 575969,2 | tst_QHashFunctions: check bool/integral consistency | 6.7 | qt/qtbase | Status: MERGED | +2 | 0 |
| 576260,3 | tst_QHashFunctions: check bool/integral consistency | tqtc/lts-6.5 | qt/tqtc-qtbase | Status: MERGED | +2 | +1 |