联锁函数 - 无法转换参数

Posted 2023-02-22

【中文标题】联锁函数 - 无法转换参数

【英文标题】：Interlocked functions - cannot convert arguments

【发布时间】：2015-07-27 07:40:36

【问题描述】：

我需要在 ARM 平台上编译 cppunit。所有在发布模式下编译和工作正常，但在调试模式下我收到以下错误：

Error   1   error C2664: 'unsigned int CppUnit::_InterlockedIncrement(volatile unsigned int *)' : cannot convert argument 1 from 'volatile long *' to 'volatile unsigned int *' C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 8959    1   cppunit
Error   2   error C2665: 'CppUnit::_InterlockedIncrement' : none of the 2 overloads could convert all the argument types    C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 8968    1   cppunit
Error   3   error C2664: 'unsigned int CppUnit::_InterlockedDecrement(volatile unsigned int *)' : cannot convert argument 1 from 'volatile long *' to 'volatile unsigned int *' C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 8990    1   cppunit
Error   4   error C2665: 'CppUnit::_InterlockedDecrement' : none of the 2 overloads could convert all the argument types    C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 8999    1   cppunit
Error   5   error C2664: 'unsigned int CppUnit::_InterlockedExchange(volatile unsigned int *,unsigned int)' : cannot convert argument 1 from 'volatile long *' to 'volatile unsigned int *' C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9024    1   cppunit
Error   6   error C2665: 'CppUnit::_InterlockedExchange' : none of the 2 overloads could convert all the argument types C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9034    1   cppunit
Error   7   error C2664: 'unsigned int CppUnit::_InterlockedExchangeAdd(volatile unsigned int *,unsigned int)' : cannot convert argument 1 from 'volatile long *' to 'volatile unsigned int *'  C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9058    1   cppunit
Error   8   error C2664: 'unsigned int CppUnit::_InterlockedExchangeAdd(volatile unsigned int *,unsigned int)' : cannot convert argument 1 from 'volatile long *' to 'volatile unsigned int *'  C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9068    1   cppunit
Error   9   error C2665: 'CppUnit::_InterlockedExchangeAdd' : none of the 2 overloads could convert all the argument types  C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9078    1   cppunit
Error   10  error C2665: 'CppUnit::_InterlockedExchangeAdd' : none of the 2 overloads could convert all the argument types  C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9088    1   cppunit
Error   11  error C2664: 'unsigned int CppUnit::_InterlockedCompareExchange(volatile unsigned int *,unsigned int,unsigned int)' : cannot convert argument 1 from 'volatile long *' to 'volatile unsigned int *' C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9123    1   cppunit
Error   12  error C2665: 'CppUnit::_InterlockedCompareExchange' : none of the 2 overloads could convert all the argument types  C:\Program Files (x86)\Windows Phone Kits\8.1\Include\winbase.h 9134    1   cppunit

我已经为此苦苦挣扎了好几天，但我真的找不到任何解决方案。 我正在使用 Visual Studio 2013。

【问题讨论】：

您是否尝试过使用显式强制转换 (static_cast)？由于volatile 被指定用于形式参数和实际参数，这就足够了。

但它适用于 ARM 版本，以及调试和发布 Win32。

【参考方案1】：

遇到同样的事情 - 似乎您是从命名空间内部包含的（在您的情况下为 CppUnit）。编译器不喜欢这样 - 确保您的 #include 在所有命名空间之外。