Homework

Jan 30, 2018 at 3:54am
I can't get the below code to compile and run, I keep getting a LNK2019 error in visual studio. Does anyone know why this is? The goal for this question is to tell the output of the program. Below is the code for the program.

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#include <string>
#include <iostream>
#include <iomanip>
using namespace std;

class temporary
{
public:
	void set(string, double, double);
	void print();
	double manipulate();
	void get(string&, double&, double&);
	void setDescription(string);
	void setFirst(double);
	void setSecond(double);
	string getDescription() const;
	double getFirst()const;
	double getSecond()const;
	temporary(string = "", double = 0.0, double = 0.0);
private:
	string description;
	double first;
	double second;
};


#include <iostream>
#include <iomanip>
#include "junk.h"
using namespace std;

int main() {
	temporary object1;
	temporary object2("rectangle", 8.5, 5);
	temporary object3("circle", 6, 0);
	temporary object4("cylinder", 6, 3.5);
	cout << fixed << showpoint << setprecision(2) << endl;
	object1.print();
	object2.print();
	object3.print();
	object4.print();
	object1.set("sphere", 4.5, 0);
	object1.print();

}

Jan 30, 2018 at 4:01am
closed account (E0p9LyTq)
What is the exact error you are getting?

A LNK2019 error is an unresolved external symbol error, likely the way you have your project/solution set up in VS.
Jan 30, 2018 at 4:04am
These are the three exact errors I'm getting.

1>junk.obj : error LNK2019: unresolved external symbol "public: void __thiscall temporary::set(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,double,double)" (?set@temporary@@QAEXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@NN@Z) referenced in function _main

1>junk.obj : error LNK2019: unresolved external symbol "public: void __thiscall temporary::print(void)" (?print@temporary@@QAEXXZ) referenced in function _main

1>junk.obj : error LNK2019: unresolved external symbol "public: __thiscall temporary::temporary(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,double,double)" (??0temporary@@QAE@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@NN@Z) referenced in function _main
Jan 30, 2018 at 4:18am
closed account (E0p9LyTq)
You have declared your temporary class, where are the methods being defined?

You don't have any of the class methods (functions) with their code shown.
Jan 30, 2018 at 4:29am
This is all the code in the text book provided me, I'm not sure what to do to make this print.
Jan 30, 2018 at 4:51am
closed account (E0p9LyTq)
If you don't include the code for your class methods, VS won't be able to find it.
Jan 30, 2018 at 4:55am
Hmm...since this is the exact code given, do you think that the answer to this question is that it doesn't print anything because the class has no defined member functions?
Jan 30, 2018 at 5:02am
closed account (E0p9LyTq)
It doesn't print anything because the code fails to compile.
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