[英]Initialize a std::ofstream in a class using initializer list
我想使用初始化列表在構造函數中初始化私有std::ofstream
(例如,在main
中打開的文件)。 我有以下代碼:
class MyClass{
std::ofstream ofs;
public:
MyClass(const std::ofstream &ofs): ofs(ofs) { }
};
我得到以下編譯錯誤:
error C2248: 'std::basic_ofstream<_Elem,_Traits>::basic_ofstream' : cannot access private member declared in class 'std::basic_ofstream<_Elem,_Traits>'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
c:\program files (x86)\microsoft visual studio 11.0\vc\include\fstream(1034) : see declaration of 'std::basic_ofstream<_Elem,_Traits>::basic_ofstream'
with
[
_Elem=char,
_Traits=std::char_traits<char>
]
這里發生了什么事?
basic_ofstream( const basic_ofstream& rhs) = delete; (5) (since C++11)
復制構造basic_ofstream
是basic_ofstream
。
可能您使用的是pre-c ++ 11編譯器,它在庫中標記為private
。
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