I ran across some errors in this cpp program I had to write for school, and I can't figure out what to do...my instructions are below; any help or advice is greatly appreciated!
Rational fractions are of the form a / b, in which a and b are integers and b ≠ 0. In this exercise, by ‘‘fractions’’ we mean rational fractions. Suppose a / b and c / d are fractions. Arithmetic operations on fractions are defined by the following rules:
a/b + c/d = (ad + bc)/bd
a/b - c/d = (ad - bc)/bd
a/b * c/d = ac/bd
(a/b) / (c/d) = ad/bc, in which c/d ≠ 0
Fractions are compared as follows: a / b op c / d if ad op bc, in which op is any of the relational operations. For example, a / b < c / d if ad < bc.
Design a class fractionType that performs the arithmetic and relational operations on fractions. Overload the arithmetic and relational operators so that the appropriate symbols can be used to perform the operation. Also, overload the stream insertion and stream extraction operators for easy input and output.
Write the class fractionType, that performs operations on fractions. Among other things, test the following: Suppose x, y, and z are objects of type fractionType. If the input is 2/3, the statement:
cin >> x;
should store 2/3 in x. The statement:
cout << x + y << endl;
should output the value of x + y in fraction form. The statement:
z = x + y;
should store the sum of x and y in z in fraction form. Your answer need not be in the lowest terms.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
//In my fractionType.h file
#pragma once
//#ifdef _fractionType_h
//#define _fractionType_H
#include <iostream>
using namespace std;
class fractionType
{
friend ostream& operator << (ostream&, const fractionType&);
friend istream& operator >> (istream&, fractionType&);
public:
const fractionType& operator=(const fractionType&);
fractionType();
fractionType(const fractionType&);
fractionType(const int&, const int&);
~fractionType();
bool operator==(const fractionType&) const;
bool operator!=(const fractionType&) const;
bool operator<=(const fractionType&) const;
bool operator< (const fractionType&) const;
bool operator>=(const fractionType&) const;
bool operator> (const fractionType&) const;
fractionType operator + (const fractionType&) const;
fractionType operator - (const fractionType&) const;
fractionType operator * (const fractionType&) const;
fractionType operator / (const fractionType&) const;
int a;
int b;
};
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
//In my farctionType.cpp file
#include <iostream>
#include "fractionType.h"
using namespace std;
fractionType::fractionType(const int& nu, const int& de)
{
a = nu;
if (de == 0)
{
cout << "ntInvalid denominator. "
<< "Default value considered for denominator. ";
b = 1;
}
else
b = de;
}
fractionType::fractionType()
{
a = 0;
b = 1;
}
fractionType::fractionType(const fractionType& rightFraction)
{
a = rightFraction.a;
b = rightFraction.b;
}
fractionType::~fractionType()
{
}
bool fractionType::operator==(const fractionType& rightFraction) const
{
return ((a == rightFraction.a) && (b == rightFraction.b));
}
bool fractionType::operator != (const fractionType& rightFraction) const
{
return ((a != rightFraction.a) || (b != rightFraction.b));
}
bool fractionType::operator<(const fractionType& rightFraction) const
{
return (a * rightFraction.b < b * rightFraction.a);
}
bool fractionType::operator<=(const fractionType& rightFraction) const
{
return (a * rightFraction.b <= b * rightFraction.a);
}
bool fractionType::operator>(const fractionType& rightFraction) const
{
return (a * rightFraction.b > b * rightFraction.a);
}
bool fractionType::operator>=(const fractionType& rightFraction) const
{
return (a * rightFraction.b >= b * rightFraction.a);
}
fractionType fractionType::operator + (const fractionType & rightFraction) const
{
fractionType temp;
temp.a = (a * rightFraction.b) + (b * rightFraction.a);
temp.b = b * rightFraction.b;
return temp;
}
fractionType fractionType::operator - (const fractionType & rightFraction) const
{
fractionType temp;
temp.a = (a * rightFraction.b) - (b * rightFraction.a);
temp.b = b * rightFraction.b;
return temp;
}
fractionType fractionType::operator*(const fractionType& rightFraction) const
{
fractionType temp;
temp.a = a * rightFraction.a;
temp.b = b * rightFraction.b;
return temp;
}
fractionType fractionType::operator/(const fractionType& rightFraction) const
{
fractionType temp;
if ((rightFraction.a == 0) || (rightFraction.b == 0))
{
temp.a = 0;
temp.b = 1;
cout << "ntInvalid to perform division. ";
}
else
{
temp.a = a * rightFraction.b;
temp.b = b * rightFraction.b;
}
return temp;
}
ostream& operator<<(ostream& osObject, const fractionType& myFraction)
{
osObject << myFraction.a << "/" << myFraction.b;
return osObject;
}
istream& operator>>(istream &isObject, fractionType& myFraction)
{
char ch;
isObject >> myFraction.a >> ch >> myFraction.b;
return isObject;
}
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#include <iostream>
//#include "fractionType.h"
using namespace std;
int main ()
{
cout << "A program to check the functionality"
<< "\nof the class fractionType. \n";
fractionType myFraction1;
fractionType myFraction2;
cout << "\nEnter a fraction in the form of a/b: ";
cin >> myFraction1;
cout << "\nEnter another fraction in the form a/b: ";
cin >> myFraction2;
cout << "\n" << myFraction1 << " + " << myFraction2 <<" = " << myFraction1 + myFraction2;
cout << "\n" << myFraction1 << " - " << myFraction2 <<" = " << myFraction1 - myFraction2;
cout << "\n" << myFraction1 << " * " << myFraction2 <<" = " << myFraction1 * myFraction2;
cout << "\n" << myFraction1 << " / " << myFraction2 <<" = " << myFraction1 / myFraction2;
cout << "\n" << myFraction1 << " == " << myFraction2;
if (myFraction1 == myFraction2)
{
cout << " is true.";
}
else
cout << " is false.";
cout << "\n" << myFraction1 << " != " << myFraction2;
if (myFraction1 != myFraction2)
{
cout << " is true. ";
}
else
{
cout << " is false. ";
}
cout << "\n" << myFraction1 << " < " << myFraction2;
if (myFraction1 < myFraction2)
{
cout << " is true. ";
}
else
{
cout << " is false. ";
}
cout << "\n" << myFraction1 << " <= " << myFraction2;
if (myFraction1 <= myFraction2)
{
cout << " is true. ";
}
else
{
cout << " is false. ";
}
cout << "\n" << myFraction1 << " > " << myFraction2;
if (myFraction1 > myFraction2)
{
cout << " is true. ";
}
else
{
cout << " is false. ";
}
cout << "\n" << myFraction1 << " >= " << myFraction2;
if (myFraction1 != myFraction2)
{
cout << " is true. ";
}
else
{
cout << " is false. ";
}
//cout << "\n";
return 0;
}
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
fractionType.h:1:9: warning: #pragmaonce in main file
#pragma once
^~~~
main.cpp: In function ‘int main()’:
main.cpp:20:3: error: ‘fractionType’was not declared in this scope
fractionType myFraction1;
^~~~~~~~~~~~
main.cpp:22:16: error: expected ‘;’ before ‘myFraction2’
fractionType myFraction2;
^~~~~~~~~~~
main.cpp:28:10: error: ‘myFraction1’was not declared in this scope
cin >> myFraction1;
^~~~~~~~~~~
main.cpp:34:10: error: ‘myFraction2’was not declared in this scope
cin >> myFraction2;
^~~~~~~~~~~
|
