Help understanding my erros.

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I am new to C++ and I am trying to create a program that will simulate a colony of bunnies. So far I am just starting out and want to make my program take in user input to start the program and based on the user input to create a linked list to start the program.

I get the following errors.

main.cpp:12:10: error: ‘s’ was not declared in this scope
   cin >> s;
          ^
main.cpp:16:2: error: ‘BunnyList’ was not declared in this scope
  BunnyList * colony = new BunnyList;
  ^
main.cpp:16:14: error: ‘colony’ was not declared in this scope
  BunnyList * colony = new BunnyList;
              ^
main.cpp:16:27: error: ‘BunnyList’ does not name a type
  BunnyList * colony = new BunnyList;
                           ^

What I have tried:

C++

#include <iostream>
#include <string>
#include <ctime>
#include <string>

//#include "ListofBunny.h"

int main (){
	 
	 string s;
	 cout << "Please press 's' to start the pass";
	 cin >> s;
	 
	 while(s == 's' | s == 'S'){
		 //creates a linked list of bunnies 
	BunnyList * colony = new BunnyList;
	 }
	
}

Posted 13-Mar-17 14:13pm

Member 12863707

Updated 13-Mar-17 22:32pm

PIEBALDconsult

v3

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[no name] 13-Mar-17 21:03pm

Your program doesn't know what "string" or "BunnyList" is. Change string s to char s and include the file that defines what BunnyList is.

Garth J Lancaster 13-Mar-17 23:53pm

should you have some 'using' statements after you include your headers perhaps ? or perhaps even

using namespace std;

as for BunnyList, you've commented out

#include "ListofBunny.h"

I presume thats where the declaration for BunnyList resides ?

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CPallini · Answer 1 · 2017-03-13T22:31:00

As others already noted, you shuold either use the using (pardon the pun) declaration, e.g.

C++

#include <iostream>
#include <string>
#include <ctime>
using namespace std;
//..

or precede with the std:: specifier the object belonging to the 'standard' namespace, e.g.

C++

int main()
{
  std::string s;
  //..

Moreover if your program uses the BunnyList class (or struct) then you need to include the header file declaring such a class (or struct).

KarstenK · Answer 2 · 2017-03-13T22:32:00

For the use of a class named BunnyList you must declare or implement it. Normally the header should have the name "BunnyList.h" and have such content:

C++

class BunnyList {
//todo
};

Your s should be a char

C++

char s = 0;//initial value
BunnyList * colony = new BunnyList();// good style with braces (if class) WITHOUT if struct

Good luck. Watch some tutorial on Youtube ;-)

Help understanding my erros.

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