Not recognizing string type even though it is included

Hello. I am trying to currently get back into coding C++. It's been quite a while so some syntax and what not I have forgotten. I am trying to compile this code but for some reason it doesn't seem to recognize string even though it is included in the main.cpp. The error is error C2146: syntax error : missing ';' before identifier 'currentJob' Any help would be very much appreciated. Thanks

Partition.h

Code:

---

class Partition
{
        public:
                int maxSize;
                int size;
                int number;
                bool status; //True = Free, False = Busy
                int unused;
                string currentJob;
       
                Partition (int,int);
                int getMaxSize(){return maxSize;}
                int getSize(){return size;}
                int getNumber(){return number;}
                int getStatus(){return status;}
                int getUnused(){return unused;}
                string getJob(){return currentJob;}

                void setMaxSize(int m){maxSize = m;}
                void setSize(int s){size = s;}
                void setNumber(int n) {number = n;}
                void setStatus(bool a)  {status = a;}
                void setUnused(int jobSize) {maxSize - jobSize;}
                void addJob(string jobName) {currentJob = jobName;}
};

Partition::Partition(int num, int psize)
        {
                number = num;
                size = psize;
        }

---

Job.h

Code:

---

class Job
{
        public:
                int currentPartitionNumber;
                string name;
                int size;
                bool status; //True = Run, False = Wait

                Job (string,int);
                void setName(string n){name = n;}
                void setSize(int s){size = s;}
                void setStatus(bool stat){status = stat;}
                void setPartition(int partitionNumber) {currentPartitionNumber = partitionNumber;}

                string getName(){return name;}
                int getSize(){return size;}       
                bool getStatus(){return status;}
                int getPartition(){return currentPartitionNumber;}
};

Job::Job(string jobName, int jsize)
        {
                name = jobName;
                size = jsize;
        }

---

Main.cpp

Code:

---

#include <iostream>
#include <string>
#include "Partition.h"
#include "Job.h"
using namespace std;

int main ()
{
        int maxSize;
        Partition pList [];
        int partitionNumber;
       
        cout << "What is the total memory size?"
        cin >> maxSize;

        do
        {
                cout << "How many partitions are there?"
                cin >> partitionNumber;

                if(partitionNumber > 5)
                        cout << "Please enter a number smaller than 5"

        }while(partitionNumber > 5);

        return 0;
}

---

first problem I can find is a lot of missing ;

on the end of line of all cout use ; (semicolon)

this is all I have found till now I'll search further

Thanks, yea I just saw those and fixed that.I tried placing "using namespace std;" before each header and it compiled but should I really have to repeat it three times?

I would have thought should only need to include using namespace std; once in the file?


Otherwise use std::
i.e.
std::string
std::cin
std::cout
etc instead of declaring namespace

well
using namespace std;

means it will use somethings in <iostream>

so if you do a class or function

Code:

---

myfunc ()
{
          cout << "aksfjb";
}
using namespace std;

---

you'll get compiler error

because you haven't include std



so you have to
use
using namespace std;

after all header files

compiler only "copies" what is included in header file in to place you have put the include

Headers should not depend on what happens before they are included somewhere. Also headers should not pollute the global namespace with using declarations (since most likely other headers will be included afterwards which can lead to pretty much unavoidable naming conflicts with those headers, as well as causing confusion for the user file).

This means: if a header needs std::string, then it a) includes <string>, b) refers to string as std::string.

You can use using declarations in cpp files after all the includes, since then the namespace "pollution" only affects code in that source file.

To make it easier, it is also possible to simply write:

Code:

---

using std::string;

---

Except, if you do that for every single thing in the std:: namespace, it amounts to a ........load of stuff before your code, and looks kind of ugly, and could be considered unnecessary bloat.