CODEWITHSUNDEEP
c++string
Micah Lehman
Micah Lehman

Reputation: 81

How to use strings in a class c++

I am having trouble using string variables inside of a class in c++. I have tried using include but that doesn't appear to have any noticeable effect. Here are the contents of the header file the class is declared in:

#include <string.h>

#ifndef STUDENT_H
#define STUDENT_H

class Student
{
private:
    int iStudentAge;
    int iStudentBirthDay;
    int iStudentBirthMonth;
    int iStudentBirthYear;
    string sStudentName;
    string sStudentCourse;
public:
    Student();
    Student(int iValue1, int iValue2, int iValue3, int iValue4, string sValue5, string sValue6);
    void setAge(int iNewValue);
    int getAge();
    void setBirthDay(int iNewValue);
    int getBirthDay();
    void setBirthMonth(int iNewValue);
    int getBirthMonth();
    void setBirthYear(int iNewValue);
    int getBirthYear();
    void setName(string iNewValue);
    string getName();
    void setCourse(string iNewValue);
    string getCourse();
};

#endif // !STUDENT_H

The specific errors I am having are all on the lines that involve strings, except for the include line.

Upvotes: 0

Views: 428

Answers (3)

anastaciu
anastaciu

Reputation: 23832

For C++ you should use the according library #include <string> not #include <string.h> witch is a C library.

For variable declaration use scope

std::string sStudentName;

or 

using namespace std;

before the class declaration for string to be recognized as a type.

The first option is recommended, to know why see Why is “using namespace std;” considered bad practice?

Upvotes: 3

AlexGeorg
AlexGeorg

Reputation: 1057

As a compromise between littering "std::" all over the file, and using the potentially dangerous "using namespace std", you can write:

using std::string;

Upvotes: 1

Some programmer dude
Some programmer dude

Reputation: 409442

<string.h> is the C header file for string handling null-terminated byte strings. std::string is defined in the header file <string>.

So first change your include to the correct file, then you need to use the std:: scope prefix for all strings.

Upvotes: 6

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