how to make variables out of a string in c++ [closed] - c++

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this is my code below, the output is numbers relating to a grade. I want to be able to make each line of the string a variable such as int grade1 and so on, so that I can display certain variables and not the whole string for example cout << grade1 << grade2 << endl;
using namespace std;
int main()
{
string line;
ifstream myfile("Data.csv"); //opening the CVS file
if (myfile.is_open())
{
while (getline(myfile, line)) //used to read each line of the file
{
string str(line); //making the file a string
char chars[] = ",abcdefghijklmnopqrstuvwxyzN;:/"; //Characters to be removed
for (unsigned int i = 0; i < strlen(chars); ++i)
{
str.erase(std::remove(str.begin(), str.end(), chars[i]), str.end());
}
str.replace(0, 9, " ");
cout << str << endl;
}
myfile.close(); //closes the file
}
else
cout << "pathway to file can't be found" << '\n'; //error message to display if file location cant be found.
cin.get();
return 0;
}

Answer 1

The question and especially the code is rather difficult to comprehend, but I understood that you want to create string variables for each line of the file.
A simple way is to loop through the file line-by-line, store the line into a string variable and then push that variable to a vector.
std::string line;
std::vector<std::string> lines;
while (getline(myfile, line))
{
lines.push_back(line);
}