C++

Forum

 
c++ write neg and pos numbers to file

michael25 (26)
im supposed to create a program that reads in a list of integers from the terminal and writes the negative numbers to one file and the positive numbers to another file.

i got most of it doen but for some reason its not writting the negative numbers. any ideas on what im doing wrong?


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
 
#include <iostream>
#include <fstream>
#include <string>
using namespace std;



int main()
{
    int pos_num = 0;
    int neg_num = 0;
    int positive_numbers = pos_num % 5;
    int negative_numbers = neg_num % 5;
    int input_numbers;
   
    string name1;
    string name2;
    ofstream fout1;
    ofstream fout2;
    
    

    cout << "Enter file name for positive integers: ";
    cin >> name1;
    
    cout << "Enter file name for negative integers: ";
    cin >> name2;
    
   
    
    fout1.open(name1.c_str(), ios::out);
    
    if (!fout1.is_open())
    {
        cerr << "Unable to open file " << name1 << endl;
    }
    
    fout2.open(name2.c_str(), ios::out);
    
    if (!fout2.is_open())
    {
        cerr << "Unable to open file " << name2 << endl;
    }
    
    
    
    cout << "Enter list of negative and positive integers (followed by 0): " << endl;
    
    while ((cin >> input_numbers) && (input_numbers != 0))
    {
        if ((input_numbers > 0) && (positive_numbers !=0))
        {
            fout1 << input_numbers << " ";
            pos_num++;
        }
        else if ((input_numbers > 0) && (positive_numbers == 0))
        {
            fout1 << input_numbers << endl;
            pos_num++;
        }
        else if ((input_numbers < 0) && (negative_numbers !=0))
        {
            fout2 << input_numbers << " ";
            neg_num++;
        }
        else if ((input_numbers < 0) && (negative_numbers == 0))
        {
            fout2 << input_numbers << endl;
            neg_num++;
        }
    }
    
    
    
    fout1 << endl;
    fout2 << endl;
    
    cout << name1 << " contains " << pos_num << " positive integers." << endl;
    cout << name2 << " contains " << neg_num << " negative integers." << endl;
    
    fout1.close();
    fout2.close();
    
    
    
    return 0;
}
coder777 (8439)
it works for me.

Apart from that positive_numbers/negative_numbers don't have any effect. They're allways 0
Clairessen (1)
i have no any idea...
Topic archived. No new replies allowed.