problem with reading files

[rcenteno]

i'm trying to sort out a file by tokenizing the strings, then after figure out how many tokens are on each line, then after see if each line has a certain object and if it has enough data to find the perimeter, area, surface area, etc...

this is what i have so far:

#include <iostream>
using std::cin;
using std::cout;
using std::endl;

#include <fstream>
using std::ifstream;

#include <cmath>

#include <cstring>
using std::strtok;
using std::strcmp;

#include <cstdlib>

const int MAX_CHARS_PER_LINE = 50;
const int MAX_TOKENS_PER_LINE = 4;
const char* DELIMITER = " ";

void squareCalc(double);
void rectangleCalc(double, double);
void circleCalc(double);
void cubeCalc(double);
void prismCalc(double, double, double);
void sphereCalc(double);
void cylinderCalc(double);
void cylinderCalc(double, double);
void triangleCalc(double, double, double);

int main()
{
  cout << endl;
  cout << "Description: Calculates area, perimeter, surface area, and volume" << endl;
  cout << "of 6 different geometric objects." << endl;
  cout << endl;
  
  ifstream fin;
  fin.open("geo.txt");
  if(!fin.good())
    return 1;

  char* token[MAX_TOKENS_PER_LINE] = {0};

  double squareSide = 0;
  double rectangleSide1 = 0;
  double rectangleSide2 = 0;
  double circle = 0;
  double cubeSide = 0;
  double prismSide1 = 0;
  double prismSide2 = 0;
  double prismSide3 = 0;
  double sphere = 0;
  double cylinder1 = 0;
  double cylinder2 = 0;
  double triangleSide1 = 0;
  double triangleSide2 = 0;
  double triangleSide3 = 0;


  while(!fin.eof())
  {
    char buf[MAX_CHARS_PER_LINE];
    fin.getline(buf, MAX_CHARS_PER_LINE);

    int n = 0;

    token[0] = strtok(buf, DELIMITER);
    if(token[0])
    {
      for(n = 1; n < MAX_TOKENS_PER_LINE; n++)
      {
        token[n] = strtok(0, DELIMITER);
        if(!token[n]) break;
      } //for
    } //if 

    if(token[0])
    {
      for(n=1; n < MAX_TOKENS_PER_LINE; n++)
        {
        if((strcmp(token[0], "SQUARE") == 0))
        {
          squareSide = atof(token[1]);;
        } //if

        if((strcmp(token[0], "RECTANGLE") == 0))
        {
          rectangleSide1 = atof(token[1]);
          rectangleSide2 = atof(token[2]);
        } //if

        if((strcmp(token[0], "CIRCLE") == 0))
        {
          circle = atof(token[1]);
        } //if

        if((strcmp(token[0], "CUBE") == 0))
        {
          cubeSide = atof(token[1]);
        } //if

        if((strcmp(token[0], "PRISM") == 0))
        {
          prismSide1 = atof(token[1]);
          prismSide2 = atof(token[2]);
          prismSide3 = atof(token[3]);
        } //if

        if((strcmp(token[0], "SPHERES") == 0))
        {
          sphere = atof(token[1]);
        } //if

        if((strcmp(token[0], "CYLINDER") == 0))
        {
          cylinder1 = atof(token[1]);
          cylinder2 = atof(token[2]);
        } //if

        if((strcmp(token[0], "TRIANGLE") == 0))
        {
          triangleSide1 = atof(token[1]);
          triangleSide2 = atof(token[2]);
          triangleSide3 = atof(token[3]);
        } //if

        if(!token[n]) break;
      } //for
    } //if

    cout << endl;
  } //while

  squareCalc(squareSide);
  rectangleCalc(rectangleSide1, rectangleSide2);
  circleCalc(circle);
  cubeCalc(cubeSide);
  prismCalc(prismSide1, prismSide2, prismSide3);
  sphereCalc(sphere);
  cylinderCalc(cylinder1, cylinder2);
  triangleCalc(triangleSide1, triangleSide2, triangleSide3);

  cout << endl;
  cout << "Press Enter to continue..." << endl;
  cin.get();

  return 0;
} //main

void squareCalc(double side)
{
  double perimeter;
  double area;

  perimeter = side * 4;
  area = side * side;

  cout << "SQUARE side=" << side << " perimeter=" << perimeter;
  cout << " area=" << area << endl;
} //squareCalc

void rectangleCalc(double side1, double side2)
{
  double perimeter;
  double area;

  perimeter = (side1 * 2) + (side2 * 2);
  area = side1 * side2;

  cout << "RECTANGLE side1=" << side1 << " side2=" << side2;
  cout << " perimeter=" << perimeter << " area=" << area << endl;
} //rectangleCalc

void circleCalc(double side1)
{
  double circumference;
  double area;
  double pow(double, int);

  double pie = 3.14;

  circumference = 2 * pie * side1;
  area = pie * pow(side1, 2);

  cout << "CIRCLE radius=" << side1;
  cout << " circumference=" << circumference << " area=" << area << endl;
} //rectangleCalc

void cubeCalc(double side1)
{
  double volume;
  double surfaceArea;

  double pow(double, int);

  volume = pow(side1, 3);
  surfaceArea = 6 * pow(side1, 2);

  cout << "CUBE side=" << side1;
  cout << " volume=" << volume << " surface area=" << surfaceArea << endl;
} //rectangleCalc

void prismCalc(double side1, double side2, double side3)
{
  double volume;
  double surfaceArea;

  volume = side1 * side2 * side3;
  
  double lw = side1 * side2;
  double lw2 = 2 * side1 + 2 * side2;
  
  surfaceArea = 2 * lw + lw2 * side3;

  cout << "PRISM side1=" << side1 << " side2=" << side2 << " side3=" << side3;
  cout << " volume=" << volume << " surface area=" << surfaceArea << endl;
} //prismCalc

void sphereCalc(double side1)
{
  double volume;
  double surfaceArea;

  double pie = 3.14;

  volume = (4/3) * pie * pow(side1, 3);
  surfaceArea = 4 * pie * pow(side1, 2);

  cout << "SPHERE radius=" << side1;
  cout << " volume=" << volume << " surfaceArea=" << surfaceArea << endl;
} //rectangleCalc

void cylinderCalc(double side1, double side2)
{
  double volume;
  double surfaceArea;

  double pie = 3.14;

  volume = 2 * pie * pow(side1, 2) * side2;
  surfaceArea = 2 * pie * pow(side1, 2) + 2 * pie * side1 * side2;

  cout << "CYLINDER side1=" << side1 << " side2=" << side2;
  cout << " volume=" << volume << " surfaceArea=" << surfaceArea << endl;
} //rectangleCalc

void triangleCalc(double side1, double side2, double side3)
{
  double perimeter;
  double area;

  perimeter = side1 + side2 + side3; 
  area = (1/2) * side1 * side2;

  cout << "TRIANGLE side1=" << side1 << " side2=" << side2 << " side3=" << side3;
  cout << " perimeter=" << perimeter << " area=" << area << endl;
} //triangleCalc 

here is the input file:

SQUARE 14.5
RECTANGLE 14.5    4.65
CIRCLE 14.5
CUBE 13
PRISM 1 2 3

SPHERES 2.4
CYLINDER 15
CYLINDER 50 1.23
TRIANGLE 1.2 3.2

i was able to parse the file and put each word and variable into a token. i was then able to convert the tokenized variables into numbers since it is coming from a char. i am then able to find all the objects perimeter, area, etc...

the only problem is that when the input files have more the one of the same object it would crash my program and also if the file has objects with insufficient information, for example PRISM 1 2, prism is suppose to have 3 variables in order to find perimeter and such. so i need to figure out how to make it say PRISM Invalid Object and how it can take in an input file with more then one of the same shape.

any information will help.

this is what the output should look like:

SQUARE side=14.5 area=210.25 perimeter=58.00
RECTANGLE length=14.5 width=4.65 area=67.43 perimeter=38.30
CIRCLE radius=14.5 area=660.52 circumference=91.11
CUBE side=13 surface area=1014.00 volume=2197.00
PRISM length=1 width=2 height=3 surface area=22.00 volume=6.00
SPHERES invalid object
CYLINDER radius=1.23 height=0 surface area=9.51 volume=0.00
CYLINDER radius=50 height=1.23 surface area=16094.37 volume=9660.39
TRIANGLE invalid object