if i have
Student.h
Student.cppCode:class Student { public: enum Type { AStudent, BStudent, CStudent, DStudent }; Type StudentType() const; private: Type myType;
Code:Student::Type Student::StudentType() const { return myType; istream& Message::read(istream& stream) { int type; getline(stream,type); /*input should be a number [1-4]*/ myType = type; /* this does not work, complains about different types*/ /* how can i fix this? */ return stream; }
Last edited by paperbox005; 07-30-2004 at 03:36 AM.
You need to convert the string to a Type yourself. For example, you could have a static map of strings to its corresponding Type enum, and then just lookup the string. Of course, since you only have four types, the easiest solution would probably be a series of if/else if statements checking the string against the appropriate text for each enum. If the string is "AStudent", then myType is AStudent, and so on.
sorry i just realised i have an error in the post..
the getline(stream,type)
type should be of type int..
so we are getting a integer [1-4] as input
and so if its 2 then myType should be BStudent
so how do i convert a number such as 2, into the string BStudent?
thanks and sorry about that error
Since enums start at 0, you will have to do a little conversion or specifically set AStudent = 1 in your enumeration. Assuming you leave the enum, you could do something like this:Code:if ((type-1) >= AStudent && (type-1) <= DStudent) myType = static_cast<Type>(type - 1); //else throw exception or handle error appropriately
You could probably just change "myType" to an int, since there is an implicit conversion from enum types to int.Code:class Student { public: enum Type { AStudent, BStudent, CStudent, DStudent }; Type StudentType() const; private: Type myType;
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> Since enums start at 0,
Easy to fix
Now they start at 1Code:enum Type { AStudent = 1, BStudent, CStudent, DStudent };
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