StarDestroyer.Net BBS

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///
///
///
///
///
/// Program: Weather data processing
/// Created by: Wesley Montgomery
/// This program anlizes weather data accessed from a file and finds the average of Temperature, Humidity, and other facts.
///
///
///

#include <fstream>	
#include <iostream>
#include <string>
#include <cmath>
#include <stdlib.h>
#include <algorithm>  // for min() and max()
#include <sstream>
#include <iomanip>


using namespace std;

void read_file(
  ifstream& file,        // The open and ready-to-read csv data file
  string    targetdate,  // The date we are interested in (see note below)
  int       temp, // The index of the field we are interested in
  double&   min,         // Where to put the minimum of the indexed field
  double&   max        // Where to put the maximum
);

void read_filepres(
  ifstream& file,        // The open and ready-to-read csv data file
  string    targetdate,  // The date we are interested in (see note below)
  int       pressure, // The index of the field we are interested in
  double&   min,         // Where to put the minimum of the indexed field
  double&   max        // Where to put the maximum
);

void read_filehum(
  ifstream& file,        // The open and ready-to-read csv data file
  string    targetdate,  // The date we are interested in (see note below)
  int       humidity, // The index of the field we are interested in
  double&   min,         // Where to put the minimum of the indexed field
  double&   max        // Where to put the maximum
);

void read_filewindmax(
  ifstream& file,        // The open and ready-to-read csv data file
  string    targetdate,  // The date we are interested in (see note below)
  int       wind, // The index of the field we are interested in
  double&   max        // Where to put the maximum
);

void get_dates( ifstream& file, string dates[], int& size );

int main()
{ 
	int pressure, temp, windspeed, humidity, rainfall, min_temp, max_temp, min_pres, max_pres, min_humi, max_humi, wind_max;
	bool  done; // exit flag 
	char  selection; //Menu Selection
	string file; // Name of datafile
	ifstream weatherfile; //datafile stream


	// Initialize exit flag
	 done = false;

	while (!done) 
	{
		// Output menu list
		cout << "\n\n";
		cout << "************************\n\n";		
		cout << "  Weather Data Analysis: \n";		
		cout << "  1) Select Data File to be loaded\n";		
		cout << "  2) Daily Min/max of Temp,Pressure and humidity\n";		
		cout << "  3) Daily Max Wind Speed\n";		
		cout << "  4) Avg Pressure, Humidity, and Windspeed for rainy days\n";	
		cout << "  5) \n";
		cout << "  6) Exit Program\n";
		cout << "************************\n\n";		

		// Input data					
		cout << "Selection -> ";		
		cin >> selection;
		cout << "\n\n";

		// Process input
		if (selection=='1') 
		{
			cout << "Insert Data file:";
			cin >> file; 
			weatherfile.open (file.c_str(), ios::in);
			cout << "\n\n";
		}
		else if (selection=='2')
		{
			while (!weatherfile.eof())
			{
				string targetdate = "04/18/2008"; // whatever the target day is
              read_file( weatherfile, targetdate, temp, min, max);
              cout << targetdate << ": ";
              cout << "The Minimum Temperature is" << setw(10) << setprecision(2) << min_temp << "degrees." << endl;
              cout << "The Maximum Temperature is" << setw(10) << setprecision(2) << max_temp << "degrees." << endl;
			  read_filepres( weatherfile, targetdate, pressure, min, max);
			  cout << "The Minimum Pressure is" << setw(10) << setprecision(2) << min_pres << "millibars." << endl;
              cout << "The Maximum Pressure is" << setw(10) << setprecision(2) << max_pres << "millibars." << endl;
			  read_filehum( weatherfile, targetdate, humidity, min, max);
			  cout << "The Minimum Humidity is" << setw(10) << setprecision(2) << min_humi << endl;
              cout << "The Maximum Humidity is" << setw(10) << setprecision(2) << max_humi << endl;
			}
			weatherfile.clear();
            weatherfile.seekg( 0 );
		}
		
		else if (selection=='3')
		{
			while (!weatherfile.eof())
			{
				string targetdate = "04/18/2008"; // whatever the target day is
              read_filewindmax(weatherfile, targetdate, windspeed, max);
              cout << targetdate << ": ";
              cout << "The Maximum Wind Speed is" << setw(10) << setprecision(2) << wind_max << "miles per hour." << endl;
			}
			weatherfile.clear();
            weatherfile.seekg( 0 );
		}
		else if (selection=='4')
		{
			while (!weatherfile.eof())
			{
			if (rainfall > 0)
			{ 

			}
			}
			weatherfile.clear();
            weatherfile.seekg( 0 );
		}
		else if (selection=='5')
		{
			while (!weatherfile.eof())
			{

				
			}
			weatherfile.clear();
            weatherfile.seekg( 0 );
		}
		else if (selection=='6')
		{
			cout << "Goodbye. Thank you for using my program.\n\n";
			done = true;					// flag for exit
		}
		else
		{
			cout << "** Invalid Selection. **\n\n";
		}
		weatherfile.close();

	} // end of while loop

	return (0);
}

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int method(){
     stuff
     return x;
}

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int y = method();

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using namespace std;

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#include <algorithm>  // for min() and max()

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main(){
   while(true){
        print_menu()
        selection = get_selection()
        switch(selection){
            a: do_a()
            b: do_b()
            c: do_c()
            ...
            exit: { print_exit(); return EXIT_SUCCESS }

       }
   }

}

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function_type functions[NUM_FUNCTIONS];

void populate_function_table(){
   functions[0]=&do_0;
   functions[1]=&do_1;
   ....
}
main(){
   populate_function_table()
   while(true){
        print_menu()
        selection=get_selection()
        if(selection == exit) return 0
        functions[selection](<INSERT PARAMETERS HERE>);       
   } 

}

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int main(void)
{
...
}

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#include <includes>

#define DONE 6
#define other defines

int menu_select();  //use this to display the menu and get the result in one step.  converted to int because that's what our defines are
//other prototypes

int main()
{
    //declare variables
    int selection;

    selection=menu_select();
    while(selection!=DONE)
    {
        switch(selection)
        {
            //use your previous defines, ints will be used here as an example
            case 1:
                do1();
                break;
            case 2:
                do2();
                break;
            //...
            default:
                //do nothing
        }
        selection=menu_select();
    }

    return 0;
}

int menu_select()
{
    int input;

    cout<<menu;  //use the defines when outputting your menu!!

    cin>>input;
    return input;
}