Qt与intel tbb：/usr/local/include/oneapi/tbb/profiling.h:229: error: expected unqualified-id before

我与四十大盗

于 2023-06-02 10:43:28 发布

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文章标签： qt oneapi 开发语言

本文链接：https://blog.youkuaiyun.com/bubbleyang/article/details/131002328

文章讨论了在使用Qt和TBB库时，由于emit关键字在两者中都有不同作用导致的冲突。建议通过定义QT_NO_KEYWORDS宏或者使用BoostSignals的工作-around来避免问题。对于大型项目，可能需要考虑更复杂的解决方案。

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profiling.h has method with name “emit” and strongly conficts with Qt keyword emit() used for signal/slot mechanism; Please, rename this method (problem starts from one api and absents in parallel studio). Qt won’t fix it. Now developer can’t correctly use Qt and TBB together.
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profiling.h is a public API and changes might affect other users.
Using TBB with QT_NO_KEYWORDS is the right way. But if project is huge and it’s complicated, consider to use workaround suggested for Boost Signals: boost signals doc

#ifndef Q_MOC_RUN
#if defined(emit)
    #undef emit
    #include <tbb/tbb.h>
    #define emit // restore the macro definition of "emit", as it was defined in gtmetamacros.h
#else
    #include <tbb/tbb.h>
#endif // defined(emit)
#endif // Q_MOC_RUN

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