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Making A Presentable Table?

Blueshark1 (29)
Hello,
I have a program below that it supposed to output data for storms analyzed in a data file. However, the table looks a bit odd and is kind of difficult to read. Any help on evening the spaces?
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#include<iostream>		//Required for cin, cout, cerr. // PROGRAM CHAP 7_5
#include<fstream>		//Required for fin. // This program reads storm values from a data file
#include <string>		//Required for string.
using namespace std;
double category (double speed);	//Function Prototypes.
string StormSurgeFeet (double speed);
string PropertyDamageLevel (double speed);
int
main ()
{
  const int MAX_SIZE = 500;	//Declare and initialize variables.
  int k (0), npts, StormNum (0), HurricaneNum (0);
  double mph[MAX_SIZE], max (0);
  string filename, id[MAX_SIZE], StormSurge, PropertyDamage;
  ifstream fin ("MonaeWindData.txt");
  ofstream report;
  if (fin.fail ())
    {
      cerr << "Could not open file MonaeWindData.txt" << endl;
      exit (1);
    }
  report.open ("MonaesReport");
  fin >> id[k] >> mph[k];	//Read data and determine maximum mph.

  while (!fin.fail ())
    {				// { PUT HERE TO GET FULL CODE ON ONE SLIDE
      if (mph[k] > 74)
	{
	  HurricaneNum++;
	}
      ++k;
      StormNum++;
      fin >> id[k] >> mph[k];
    }				//end while
  npts = k;			//Print hurricane report.


  cout << "The total number of storms recorded is:" << StormNum << endl;
  report << "The total number of storms recorded is:" << StormNum << endl;

  cout << "The total number of Hurricanes recorded is:" << HurricaneNum <<
    endl;
  report << "The total number of storms recorded is:" << HurricaneNum << endl;

  cout << "Storms that Qualify as Hurricanes \n"
    <<
    "Identification\t Peak Wind(mph)\t Category\t Storm Surge\t Property Damage Expected\n";

  report << "Storms that Qualify as Hurricanes \n"
    <<
    "Identification\t Peak Wind(mph)\t Category\t Storm Surge\t Property Damage Expected\n";

  for (k = 0; k < npts; ++k)
    {
      if (mph[k] >= 74)
	{
	  report << "\t" << id[k] << "\t\t" << mph[k] << "\t"
	    << category (mph[k]) << StormSurge << PropertyDamage << endl;
	  cout << "\t" << id[k] << "\t\t" << mph[k] << "\t" << category (mph[k]) << "\t" << StormSurgeFeet(mph[k]) << "\t "<< PropertyDamageLevel(mph[k]) << "\t" << endl;
	  
	}			//end if k
    }				//end for

  fin.close ();
  report.close ();
  return 0;
}				// end main

double
category (double speed)		//This function determines the hurricane intensity category
{
  int intensity (1);		//Declare variables.
  if (speed >= 155)		//Determine category.
    {
      intensity = 5;
    }
  else if (speed >= 131)
    {
      intensity = 4;		// { intensity=4; put on this line for fitting code on slide
    }
  else if (speed >= 111)
    {
      intensity = 3;
    }
  else if (speed >= 96)
    {
      intensity = 2;
    }

  return intensity;

}
 string StormSurgeFeet (double speed)		//This function determines the hurricane intensity category
{
 string intensity ("4-5");		//Declare variables.
  if (speed >= 155)		//Determine category.
    {
      intensity = "18+";
    }
  else if (speed >= 131)
    {
      intensity = "13-18";		// { intensity=4; put on this line for fitting code on slide
    }
  else if (speed >= 111)
    {
      intensity = "9-12";
    }
  else if (speed >= 96)
    {
      intensity = "6-8";
    }

  return intensity;

}
 string PropertyDamageLevel (double speed)		//This function determines the hurricane intensity category
{
 string intensity ("Minimal");		//Declare variables.
  if (speed >= 155)		//Determine category.
    {
      intensity = "Catastrophic";
    }
  else if (speed >= 131)
    {
      intensity = "Extreme";		// { intensity=4; put on this line for fitting code on slide
    }
  else if (speed >= 111)
    {
      intensity = "Extensive";
    }
  else if (speed >= 96)
    {
      intensity = "Moderate";
    }

  return intensity;
  
  /*OUTPUT
*/
}
Last edited on
Peter87 (11178)
Read up on std::setw and use it instead of '\t'.
seeplus (6457)
What compiler are you using? If VS2022 you can use C++20 std::format

https://en.cppreference.com/w/cpp/utility/format/format

PS. Some provided test data would be helpful as well.
Last edited on
seeplus (6457)
Using iomanip (for setw), possibly:

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#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>

using std::cout;
using std::cerr;
using std::setw;

constexpr size_t MAX_SIZE { 500 };
constexpr double Hurricane { 74.0 };

unsigned category(double speed);
std::string StormSurgeFeet(double speed);
std::string PropertyDamageLevel(double speed);

void header(std::ostream& os) {
	os << "\nStorms that Qualify as Hurricanes \n" << setw(18) << std::left <<
		"Identification" << setw(16) << "Peak Wind(mph)" << setw(12) << "Category" << setw(15) << "Storm Surge" <<
		setw(25) << "Property Damage Expected\n";
}

void detail(std::ostream& os, std::string id, double mph) {
	 os << setw(18) << std::left << id << setw(16) << mph << setw(12) << category(mph) << setw(15) << StormSurgeFeet(mph) << setw(25) << PropertyDamageLevel(mph) << '\n';
}

int main() {
	std::ifstream fin("MonaeWindData.txt");

	if (!fin)
		return (cerr << "Could not open file MonaeWindData.txt\n"), 1;

	std::ofstream report("MonaesReport");

	if (!report)
		return (cerr << "Could not open report file\n"), 2;

	size_t StormNum {}, HurricaneNum {};
	double mph[MAX_SIZE] {};
	std::string id[MAX_SIZE];

	for (; StormNum < MAX_SIZE && (fin >> id[StormNum] >> mph[StormNum]); ++StormNum)
		HurricaneNum += mph[StormNum] >= Hurricane;

	cout << "The total number of storms recorded is: " << StormNum << '\n';
	report << "The total number of storms recorded is: " << StormNum << '\n';

	cout << "The total number of Hurricanes recorded is: " << HurricaneNum << '\n';
	report << "The total number of Hurricanes recorded is: " << HurricaneNum << '\n';

	header(cout);
	header(report);

	for (size_t k {}; k < StormNum; ++k)
		if (mph[k] >= 74) {
			detail(cout, id[k], mph[k]);
			detail(report, id[k], mph[k]);
		}
}

unsigned category(double speed) {
	if (speed >= 155)
		return 5;

	if (speed >= 131)
		return 4;

	if (speed >= 111)
		return 3;

	if (speed >= 96)
		return 2;

	return 1;
}

std::string StormSurgeFeet(double speed) {
	if (speed >= 155)
		return "18+";

	if (speed >= 131)
		return "13-18";

	if (speed >= 111)
		return "9-12";

	if (speed >= 96)
		return "6-8";

	return "4-5";
}

std::string PropertyDamageLevel(double speed) {
	if (speed >= 155)
		return "Catastrophic";

	if (speed >= 131)
		return "Extreme";

	if (speed >= 111)
		return "Extensive";

	if (speed >= 96)
		return "Moderate";

	return "Minimal";
}

Last edited on
thmm (703)
What compiler are you using? If VS2022 you can use C++20 std::format

It works with VS2019 already, but I doubt that std::format will be allowed for homework.
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