wchar_t问题

msvc2008

之前，wchar_t 是作为 unsigned short 来处理的，从vs2008开始，默认将其作为内置类型来处理。

如果想仍将其作为 unsigned short 的别名：则需要

• /Zc:wchar_t-

  
  

  
  

  When using QString::fromWCharArray(const wchar_t* , int size = - 1);
  
  vs2005 gives the following error:
  

  Qt Code:

  1. error LNK2019: unresolved external symbol "__declspec(dllimport)
  2. public: static class QString __cdecl QString::fromWCharArray(wchar_t const *,int)"
  3. (__imp_?fromWCharArray@@@SA?AV1@PB_WH@Z) referenced in function "public:
  4. void __thiscall midiIO::queryMidiInDevices(void)" (?queryMidiInDevices@midiIO@@QAEXXZ)

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  To fix this, go to Project --> Properties --> Configuration Properties -->
  C/C++ --> Language, and set 'Treat wchar_t as Built-in Type' to No.
  
  Hope it helps someone, it fixed my day...

  原文链接