Help with Coding (Newbie)

Hi Guys,

Need help with this code. Using codeblocks and getting error that the template is not being recognised.

Code is as follows:

Code:

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#include <iostream>
#include <cstdlib>
#include <fstream>
#include <sstream>
#include <string>
#include <winddata.h>

void menu(vector<WindData>& windlog);
void readFile(ifstream& inputFile, vector<WindData>& windlog);
void averageWind(int monthNum, vector<WindData>& windlog);

int main()
{
    vector<WindData> windlog;
    ifstream inputFile("MetData-31-3.csv");

    if(!inputFile) return -1;
    readFile(inputFile, windlog);
    menu(windlog);

    return 0;
}

void readFile(std::ifstream& inputFile, std::vector<WindData>& windlog)
{
    float tempSpeed;
    int timeIndex, windSpeedIndex, radiationIndex;
    int columns = 18, field = 0;
    std::string tempDate, tempTime;
    std::string headers[20];
    std::string nStream;

    for(int i = 0; i < columns -1; i++)
    {
        getline(inputFile, headers[i], ',');
        if(headers[i] == "WAST")
            timeIndex = i;

        if(headers[i] == "S")
            windSpeedIndex = i;

        if(headers[i] == "SR")
            radiationIndex = i;
    }

    getline(inputFile, headers[17]);

    if(inputFile)
    {
        std::string token;
        std::stringstream iss, dateStream;
        while(getline(inputFile, nStream))
        {
            iss << nStream;
            while(getline(iss, token, ','))
            {
                if(field == timeIndex)
                {
                    dateStream << token;
                    getline(dateStream, tempDate, ' ');
                    getline(dateStream, tempTime);
                }

                if(field == windSpeedIndex)
                {
                    tempSpeed = std::atof(token.c_str());
                }

                field++;
            }
            field = 0;
            iss.clear();
            dateStream.clear();

            WindData windSpeed(tempDate, tempTime, tempSpeed);
            windlog.push_back(windSpeed);
            windSpeed.print();
        }
        std::cout << "Vector Size: " << windlog.size() << std::endl;
    }
}

void averageWind(int yearNum, std::vector<WindData>& windlog)
{
    std::string month[12] = {"January", "February", "March", "April", "May", "June",
                            "July", "August" "September", "October", "November", "December"};

    int monthCount = 0, monthNum[12] = {0}, monthAverage[12] = {0};
    int dayCount[12] = {0}, totalWindSpeed[12] = {0}, totalRadiation[12] = {0}, mWindAverage[12] = {0};

    for (WindData& windData : windlog) {
        if (windData.getYear() == yearNum) {
            int i = windData.getMonth() - 1;
            totalWindSpeed[i] += windData.getSpeed();
            dayCount[i]++;
        }
    }

    std::cout << "Wind Speed: " << totalWindSpeed[i] << std::endl;
    std::cout << "Day Count: " << dayCount[i] << std::endl;

    for (int i = 0; i < 12; i++) {
        mWindAverate[i] = totalWindSpeed[i] / dayCount[i];
    }

    std::cout << mWindAverage[i];
    std::cout << month[i];
}

void menu(std::vector<WindData>& windlog)
{
    int option = 0;

    while(option != 5)
    {
        std::cout << "Menu:" << std::endl;
        std::cout << "1: \tPrint the maximum wind speed for a specified month & year" << std::endl;
        std::cout << "2: \tPrint the average wind speed for each month of a specified year" << std::endl;
        std::cout << "3: \tPrint the total solar radiation for each month of a specified year" << std::endl;
        std::cout << "4: \tAverage wind speed & solar radiation for each month of a specified year\n\tSaved to file." << std::endl;
        std::cout << "5: \tExit the program.\n\n" << std::endl;
        std::cin >> option;
        switch(option)
        {
            case 1:
                break;

            case 2:
                int year;
                std::cout << "Please enter a year" << std::endl;
                std::cin >> year;
                averageWind(year,windlog);
                break;

            case 3:
                break;

            case 4:
                break;

            case 5:
                std::cout << "Exiting..." << std::endl;
                break;
        }
    }
}

---

winddata.h:

Code:

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#ifndef WINDDATA_H
#define WINDDATA_H

using namespace std;

template <class WindData>
class vector{
public:

    /**default constructor*/
    vector(int size = 100000);
    vector(Vector<WindData>& otherList);
    ~vector();

    /**data members*/
private:
    WindData *list ;
    int length;
    int maxSize;
};

/** implementation of template class*/

template<class WindData>
vector<WindData>::vector(int size)
{
    maxSize = listSize;
    length = 0;
    list = new WindData[maxSize];
}

template<class WindData>
vector<WindData>::~vector()
{
    delete[] list;
}

/**end of class*/
#endif

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When posting code, please use code tags so that the code is readable. Go Advanced, select the formatted code and click '#'.

Cheers!

Code:

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template <class WindData>

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WindData is the template type parameter so isn't a defined type as such - just a template parameter. So

Code:

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void menu(vector<WindData>& windlog);

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is not valid as WindData isn't specified. This should be

Code:

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template <class WindData>
void menu(vector<WindData>& windlog);

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and similar for the other function declarations and definitions.

Also

Code:

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vector<WindData> windlog;

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WindData type has not been specified. You are going to have to define a type that is passed as the template paramater. Eg

Code:

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struct mytest {
  int a;
  int b;
};
...
vector<mytest> windlog;

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or don't use a templated class but define WindData as a non-templated class.

Why are you defining your own class vector when vector is a STL container?