摘要： explicit is a key word to prevent the constructor to do the implicit type conversionclass String1 {public: String1(int n); // assign n bytes}class String2 {public: explicit String2(int n); // assign n bytes}String1 str1 = 'x'; // OK: 'x' will be converted to int and calls the String1 阅读全文

摘要： A smart pointer is an abstract data type that stimulates a pointer with additional funationality, such as auto memory deallocation, reference counting, etc. In practise it could be a wrapper around of a regular pointer and forwards all meaningfull operations to the pointerThe simplest smart pointer 阅读全文