fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4.  
  5. class Rational
  6. {
  7. public:
  8.     Rational(int = 0, int = 1); // default constructor
  9.     Rational addition(const Rational&); 
  10.     Rational subtraction(const Rational&); 
  11.     Rational multiplication(const Rational&); 
  12.     Rational division(const Rational&); 
  13.     void printRational(); 
  14.     void printRationalAsdouble(); 
  15.  
  16. private:
  17.     int numerator; 
  18.     int denominator; 
  19.     void reduction(); // function to reduce using great common divisor 
  20.  
  21. }; 
  22.  
  23.  
  24. Rational::Rational(int n, int d)
  25. {
  26. 	numerator = n; 
  27. 	denominator = d; 
  28. 	reduction(); 
  29. } 
  30.  
  31.  
  32. Rational Rational::addition(const Rational& a)
  33. {
  34. 	Rational t; 
  35.  
  36. 	t.numerator = a.numerator * denominator; 
  37. 	t.numerator += a.denominator * numerator; 
  38. 	t.denominator = a.denominator * denominator; 
  39. 	t.reduction();
  40. 	return t; 
  41.  
  42. } 
  43.  
  44. Rational Rational::subtraction(const Rational& s)
  45. {
  46. 	Rational t;
  47. 	t.numerator = s.numerator * denominator; 
  48. 	t.numerator -= denominator * s.numerator; 
  49. 	t.denominator = s.denominator * denominator; 
  50. 	return t; 
  51.  
  52. }  
  53.  
  54. Rational Rational::multiplication(const Rational& m)
  55. {
  56. 	Rational t; 
  57. 	t.numerator = m.numerator * numerator; 
  58. 	t.denominator = m.denominator * denominator; 
  59. 	t.reduction(); 
  60. 	return t; 	
  61. } 
  62.  
  63. Rational Rational::division(const Rational& v)
  64. {
  65. 	Rational t; 
  66. 	t.numerator = numerator * v.denominator; 
  67. 	t.denominator = denominator * v.numerator; 
  68. 	t.reduction(); 
  69. 	return t; 
  70.  
  71. } 
  72.  
  73.  
  74. void Rational::printRational()
  75. {
  76. 	if (denominator == 0) 
  77. 		cout << "\nDIVIDE BY ZERO ERROR!!!" << "\n";
  78. 	else if (numerator == 0) 
  79. 		cout << 0;
  80. 	else
  81. 		cout << numerator << '/' << denominator; 
  82. } 
  83.  
  84.  
  85. void Rational::printRationalAsdouble()
  86. {
  87. 	cout << static_cast<double>(numerator) / denominator; 
  88. } 
  89.  
  90. void Rational::reduction()
  91. {
  92. 	int largest; 
  93.  
  94. 	largest = numerator > denominator ? numerator : denominator; 
  95.  
  96.  
  97. 	for (int loop = 2; loop <= largest; loop++)
  98. 	{
  99. 			for (int loop = 2; loop <= largest; loop++)
  100.     		{
  101.         		if (numerator % loop == 0 && denominator % loop == 0)
  102.         		{
  103.             		numerator /= loop; 
  104.             		denominator /= loop; 
  105.         		} 
  106.     		}
  107.  
  108. 	}
  109.  
  110. } 
  111.  
  112.  
  113. int main()
  114. {
  115. 	Rational obj1(8, 14), obj2(5, 7), resobj; 
  116.  
  117. 	obj1.printRational(); 
  118. 	cout << " + ";
  119. 	obj2.printRational(); 
  120. 	resobj = obj1.addition(obj2); 
  121.  
  122. 	cout << " = "; 
  123. 	resobj.printRational(); 
  124.  
  125.  
  126.  
  127. }
Success #stdin #stdout 0.01s 5304KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
4/7 + 5/7 = 9/7
https://ideone.com/N4woUs
https://stackoverflow.com/questions/69407692/what-may-be-the-reason-for-this-constructor-failing-to-initialize-with-the-given
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!