C++

Forum

 
How to read string and ints from a file and access them?

jlmccart01 (17)
Okay, I have a .csv file and have a bunch of code that is supposed to take the items and allow access to them when I need to. The problem is I get a build error saying "no suitable conversion function from "std::string" to "int" exists". So how do I get around this cause I need to access them by putting them into an array.

Thanks for any help!

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
 

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>

using namespace std;

struct Forecast {
	string day;
	int highTemp;
	int lowTemp;
	int humidity;
	int avgWind;
	string avgWindDir;
	int maxWind;
	string maxWindDir;
	double precip;
};

int main()
{
	Forecast data;
	data.day;
	data.highTemp;
	data.lowTemp;
	data.humidity;
	data.avgWind;
	data.avgWindDir;
	data.maxWind;
	data.maxWindDir;
	data.precip;

	const int arrayLength = 984;
	Forecast weatherD[arrayLength];

	ifstream Forecast;
	Forecast.open("DATABOULDER.csv");
	if (Forecast.fail())
	{
	}
	else 
	{
		string weather;
		int lineIndex = 0;
		while (getline(Forecast, weather, '\n'))
		{
			stringstream ss;
			ss << weather;
			int weatherIndex = 0;
			while (getline(ss, weather, ','))
			{
				if (weatherIndex == 0)
				{
					weatherD[lineIndex].day = weather;
				}
				else if (weatherIndex == 1)
				{
					weatherD[lineIndex].highTemp = weather;
				}
				else if (weatherIndex == 2)
				{
					weatherD[lineIndex].lowTemp = weather;
				}
				else if (weatherIndex == 3)
				{
					weatherD[lineIndex].humidity = weather;
				}
				else if (weatherIndex == 4)
				{
					weatherD[lineIndex].avgWind = weather;
				}
				else if (weatherIndex == 5)
				{
					weatherD[lineIndex].avgWindDir = weather;
				}
				else if (weatherIndex == 6)
				{
					weatherD[lineIndex].maxWind = weather;
				}
				else if (weatherIndex == 7)
				{
					weatherD[lineIndex].maxWindDir = weather;
				}
				else if (weatherIndex == 8)
				{
					weatherD[lineIndex].precip = weather;
				}
			}
		}
	}
    return 0;
}
theturk1234 (148)
Ok,
Undoubtedly the compiler is getting two references to "Forecast"
You have a struct Forecast and then you declare an ifstream Forecast.
If that isn't the problem, it's at least part of it.

Hope this helps!
Handy Andy (5051)
Hello jlmccart01,

Do not start a second thread on the same question. It just it confusing for everyone. Better to stick with:
http://www.cplusplus.com/forum/beginner/198892/

Andy
Topic archived. No new replies allowed.