warning：cannot pass objects of non-POD type

移植代码到Linux下，运行总是崩溃（在windows下正常）。

调试发现问题出在下列语句：

   wxString szSiteHead = wxString::Format( wxT("<Location /%s>"), file.GetName() );

查看编译记录有下列警告信息

   warning: cannot pass objects of non-POD type 'class wxString' through '...'; call will abort at runtime|

提示在运行时会异常。

 

查找 POD type定义如下：

 

POD stands for Plain Old Data - that is, a struct (or class) with no members except data members. Wikipedia goes into a bit more detail and defines a POD in C++ as "A Plain Old Data Structure in C++ is an aggregate class that contains only PODS as members, has no user-defined destructor, no user-defined copy assignment operator, and no nonstatic members of pointer-to-member type."

 

代码更改后OK。

wxString szSiteHead = wxString::Format( wxT("<Location /%s>"), file.GetName().c_str() );