这是一个 10 行 C++11 程序,从我正在处理的程序中大大简化:
template <typename T> class Base { public:
template <typename S> Base(S x) {}
};
template <typename T> class Child : public Base<T> { public:
using Base<T>::Base;
};
template <> class Child<int> : public Base<int> { public:
using Base<int>::Base;
};
int main()
{
Child<int> child(8.0f);
}
MSVC 2015 输出:
1>------ Build started: Project: MyProject, Configuration: Debug Win32 ------
1> filename.cpp
1>path\to\filename(10): fatal error C1001: An internal error has occurred in the compiler.
1> (compiler file 'msc1.cpp', line 1393)
1> To work around this problem, try simplifying or changing the program near the locations listed above.
1> Please choose the Technical Support command on the Visual C++
1> Help menu, or open the Technical Support help file for more information
NB MSVC 2015 对继承构造函数的支持是该版本的新增功能。
我已经提交了一个错误报告,因为至少编译器不应该崩溃。但是,我可以确认这是正确的 C++ 用法/解决方法吗?
错误报告在这里