在托管C++中使用stlport

Question

是否可以在托管C++ DLL中使用stlport？

在我的项目中，我从链接器中得到了几个'未解决的令牌'错误，用于stlport的东西。例如为：

1>moc_ParentWidget.obj : error LNK2020: unresolved token (0A000819) "public: __thiscall stlp_std::allocator<unsigned short>::~allocator<unsigned short>(void)" (??1?$allocator@G@stlp_std@@$$FQAE@XZ) 
1>ParentWidget.obj : error LNK2028: unresolved token (0A0008EB) "public: __thiscall stlp_std::allocator<unsigned short>::~allocator<unsigned short>(void)" (??1?$allocator@G@stlp_std@@$$FQAE@XZ) referenced in function "public: class stlp_std::allocator<unsigned short> __thiscall stlp_std::vector<unsigned short,class stlp_std::allocator<unsigned short> >::get_allocator(void)const " (?get_allocator@?$vector@GV?$allocator@G@stlp_std@@@stlp_std@@$$FQBE?AV?$allocator@G@2@XZ) 
1>Terra3DViewNet.obj : error LNK2028: unresolved token (0A00087D) "public: __thiscall stlp_std::allocator<unsigned short>::~allocator<unsigned short>(void)" (??1?$allocator@G@stlp_std@@$$FQAE@XZ) referenced in function "public: class stlp_std::allocator<unsigned short> __thiscall stlp_std::vector<unsigned short,class stlp_std::allocator<unsigned short> >::get_allocator(void)const " (?get_allocator@?$vector@GV?$allocator@G@stlp_std@@@stlp_std@@$$FQBE?AV?$allocator@G@2@XZ) 
1>moc_ParentWidget.obj : error LNK2028: unresolved token (0A000B9F) "public: __thiscall stlp_std::priv::_STLP_alloc_proxy<unsigned short *,unsigned short,class stlp_std::allocator<unsigned short> >::~_STLP_alloc_proxy<unsigned short *,unsigned short,class stlp_std::allocator<unsigned short> >(void)" (??1?$_STLP_alloc_proxy@PAGGV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@XZ) referenced in function "public: __thiscall stlp_std::priv::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >(unsigned int,class stlp_std::allocator<unsigned short> const &)" (??0?$_Vector_base@GV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@IABV?$allocator@G@2@@Z) 
1>ParentWidget.obj : error LNK2028: unresolved token (0A000CC2) "public: __thiscall stlp_std::priv::_STLP_alloc_proxy<unsigned short *,unsigned short,class stlp_std::allocator<unsigned short> >::~_STLP_alloc_proxy<unsigned short *,unsigned short,class stlp_std::allocator<unsigned short> >(void)" (??1?$_STLP_alloc_proxy@PAGGV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@XZ) referenced in function "public: __thiscall stlp_std::priv::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >(unsigned int,class stlp_std::allocator<unsigned short> const &)" (??0?$_Vector_base@GV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@IABV?$allocator@G@2@@Z) 
1>Terra3DViewNet.obj : error LNK2028: unresolved token (0A000C5B) "public: __thiscall stlp_std::priv::_STLP_alloc_proxy<unsigned short *,unsigned short,class stlp_std::allocator<unsigned short> >::~_STLP_alloc_proxy<unsigned short *,unsigned short,class stlp_std::allocator<unsigned short> >(void)" (??1?$_STLP_alloc_proxy@PAGGV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@XZ) referenced in function "public: __thiscall stlp_std::priv::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >(unsigned int,class stlp_std::allocator<unsigned short> const &)" (??0?$_Vector_base@GV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@IABV?$allocator@G@2@@Z) 
1>moc_ParentWidget.obj : error LNK2020: unresolved token (0A000DE1) "public: void __thiscall stlp_std::allocator<unsigned short>::deallocate(unsigned short *,unsigned int)" (?deallocate@?$allocator@G@stlp_std@@$$FQAEXPAGI@Z) 
1>ParentWidget.obj : error LNK2028: unresolved token (0A000F27) "public: void __thiscall stlp_std::allocator<unsigned short>::deallocate(unsigned short *,unsigned int)" (?deallocate@?$allocator@G@stlp_std@@$$FQAEXPAGI@Z) referenced in function "public: __thiscall stlp_std::priv::_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >::~_Vector_base<unsigned short,class stlp_std::allocator<unsigned short> >(void)" (??1?$_Vector_base@GV?$allocator@G@stlp_std@@@priv@stlp_std@@$$FQAE@XZ) 
... 

我检查如果功能被包括在STLport的库/ DLL和当前具有稍微不同未修饰名称的功能。所以我想调用约定有什么问题！？有任何想法吗？

Answer 1

我解决了这个问题。问题在于stlport是使用wchar_t作为内置类型处理的，.NET部分是在没有此选项的情况下编译的。

由于这个wchar_t在.NET中被视为unsigned short并导致无法解析的外部符号。

Answer 2

C++编译器使用name mangling，例如。使用MSVC++编译时，“void h（int）”变为“？h @@ YAXH @ Z”6/7

但是，编译器之间甚至编译器版本之间的名称转换不同。您的DLL可能是使用不同的编译器或使用不同名称的较旧版本的编译器编译的。尝试使用您正在使用的编译器重新编译库。