/////////////////////////////////////////////////////////////////////
//
// Name: Angelique Cano
// Date: 2/26/2021
// Class: CSCI 1370 92L
// Semester: Spring 2021
// CSCI/CMPE 1370 Instructor: Gustavo Dietrich
//
// Program Description: This program calculates the areas of rectangle and of an ellipse and sends the results to an output file
//
/////////////////////////////////////////////////////////////////////
#include <iostream> // to use cin and cout
#include <typeinfo> // to be able to use operator typeid
// Include here the libraries that your program needs to compile
#include <cmath>
#include <iomanip>
#include <fstream> //To use input and output files
#include <math.h>
#include <string>
using namespace std;
// Ignore this; it's a little function used for making tests
inline void _test(const char* expression, const char* file, int line)
{
cerr << "test(" << expression << ") failed in file " << file;
cerr << ", line " << line << "." << endl << endl;
}
// This goes along with the above function...don't worry about it
#define test(EXPRESSION) ((EXPRESSION) ? (void)0 : _test(#EXPRESSION, __FILE__, __LINE__))
// Declare a global constant named PI equal to 3.141592
const double PI = 3.141592;
// Include your header file here
#include "myfunctions.h"
int main()
{
// Declare variable named outFile to represent the output file
ofstream outFile;
// Declare variables named base, height, radiusa, and radiusb that hold doble precision numbers
double b, h, ra, rb;
// Declare variables named rec_area, and elli_area that hold double precision real numbers
double ar, ae;
// Open output file "output9.txt" and relate it to outFile
outFile.open("output9.txt");
//Print on the screen "For the rectangle"
cout << "For the rectangle" << endl;
//Call void function getData() and receive in base and height the two lengths read from the keyboard
getData(par1, par2);
//Print on the screen "For the ellipse"
cout << "For the ellipse" << endl;
//Call void function getData() and receive in radiusa and radiusb the two lengths read from the keyboard
getData(par1, par2);
// Call function area_rectangle() to calculate the area of a rectangle and assign the returned value to rec_area
ar(b, h);
//Call function area_ellipse() to calculate the area of an ellipse and assign the returned value to elli_area
ae(PI, ra, rb);
// Call function printData() to print the output to the output file
printData(outFile, b, h, ar, ra, rb, ae);
// Close the file
outFile.close();
system("pause");
// Do NOT remove or modify the following statements
cout << endl << "Testing your solution" << endl << endl;
test(typeid(PI) == typeid(1.)); // Incorrect data type used for PI
test(PI == 3.141592); // Incorrect value used for PI
test(typeid(base) == typeid(1.)); // Incorrect data type used for base
test(typeid(height) == typeid(1.)); // Incorrect data type used for height
test(typeid(radiusa) == typeid(1.)); // Incorrect data type used for radiusa
test(typeid(radiusb) == typeid(1.)); // Incorrect data type used for radiusb
test(typeid(rec_area) == typeid(1.)); // Incorrect data type used for rec_area
test(typeid(elli_area) == typeid(1.)); // Incorrect data type used for elli_area
test(fabs(area_rectangle(2.33, 3.61) - 8.4) < 0.001); // Incorrect rounding of area of rectangle
test(fabs(area_rectangle(2.42, 3.7) - 9.0) < 0.001); // Incorrect rounding of area of rectangle
test(fabs(area_ellipse(4.55, 5.95) - 85.1) < 0.001); // Incorrect rounding of area of ellipse
test(fabs(area_ellipse(4.61, 6.01) - 87.0) < 0.001); // Incorrect rounding of area of ellipse
system("pause");
return 0 ;
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C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
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You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
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......
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For loop is used to iterate a set of statements based on a condition.
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While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
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Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}