main.cpp

/* test.pro
 QT += core
 QT -= gui
 CONFIG += c++11
 TARGET = test
 CONFIG += console
 CONFIG -= app_bundle
 TEMPLATE = app
 SOURCES += main.cpp
*/

#include <QCoreApplication> // compiler error only manifests when this is included
template<class T>
class A {
  public:
    A(){}
};

template<class T>
using AA = A<T>;

//duplicate using statement
template<class T>
using AA = A<T>;

int main(int argc, char *argv[]) {
    // template instantiation not required to produce error
    //AA<int> a;
    return 0;
}

/* Leads to wierd compiler errors:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\INCLUDE\xstring(1596): error C3536: '_Mydata': cannot be used before it is initialized
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\INCLUDE\xstring(1596): error C2440: '<function-style-cast>': cannot convert from 'int' to 'std::_String_iterator<std::_String_val<std::_Simple_types<wchar_t>>>'

Build Environment:
OS: Windows 8.1
Kit: Qt5.7.1 , msvc2015_64bit
Qt Creator 4.2.0 (4.2.0) - Based on Qt 5.7.1 (MSVC 2015, 32 bit)
// build files generated with qmake
qmake.exe test.pro -spec win32-msvc2015
*/