C++ Primer Plus, Fourth Edition

Review Questions

1:	Suppose a String class has the following private members: class String { private: char * str; // points to string allocated by new int len; // holds length of string //... } ; What's wrong with this default constructor? String::String() { } What's wrong with this constructor? String::String(const char * s) { str = s; len = strlen(s); } What's wrong with this constructor? String::String(const char * s) { strcpy(str, s); len = strlen(s); }
2:	Name three problems that may arise if you define a class in which a pointer member is initialized using new and indicate how they can be remedied.
3:	What class methods does the compiler generate automatically if you don't provide them explicitly? Describe how these implicitly generated ...