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| author | Thiago Macieira <thiago.macieira@nokia.com> | 2010-11-25 18:21:17 (GMT) |
|---|---|---|
| committer | Thiago Macieira <thiago.macieira@nokia.com> | 2010-11-26 21:02:28 (GMT) |
| commit | d89985ce546f63f4e563ccc54951957d2f33c5ec (patch) | |
| tree | dd3cf6e7b20c8a0ee6202e9d138d507829f03219 /src/gui/text/qtextformat.cpp | |
| parent | 3251c5023c184466e8199c8999aa6e332eb98534 (diff) | |
| download | Qt-d89985ce546f63f4e563ccc54951957d2f33c5ec.zip Qt-d89985ce546f63f4e563ccc54951957d2f33c5ec.tar.gz Qt-d89985ce546f63f4e563ccc54951957d2f33c5ec.tar.bz2 | |
Fix strict-aliasing violation warning.
Strict aliasing is violated here, so just silence the compiler (GCC)
by using an extension.
Diffstat (limited to 'src/gui/text/qtextformat.cpp')
| -rw-r--r-- | src/gui/text/qtextformat.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/gui/text/qtextformat.cpp b/src/gui/text/qtextformat.cpp index 46db253..fdbb680 100644 --- a/src/gui/text/qtextformat.cpp +++ b/src/gui/text/qtextformat.cpp @@ -265,10 +265,18 @@ private: friend QDataStream &operator>>(QDataStream &, QTextFormat &); }; -// this is only safe if sizeof(int) == sizeof(float) +// this is only safe because sizeof(int) == sizeof(float) static inline uint hash(float d) { +#ifdef Q_CC_GNU + // this is a GCC extension and isn't guaranteed to work in other compilers + // the reinterpret_cast below generates a strict-aliasing warning with GCC + union { float f; uint u; } cvt; + cvt.f = d; + return cvt.u; +#else return reinterpret_cast<uint&>(d); +#endif } static inline uint hash(const QColor &color) |