STL List
user inputs a string
i want to load the string in to my nodes of my List
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#include <iostream>
#include <string>
#include <list>
using namespace std;
int main()
{
string a;
cout << "Enter 5 lines." << endl;
list <string> myList(5);
list<string>::iterator it = myList.begin();
//input a atring and load it
for(string it;it != myList.end();it++)
{
cin >> a;
myList.insert(a);
}
return 0;
}
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#include <iostream>
#include <string>
#include <list>
#include <iterator>
using namespace std;
int main()
{
string input;
cout << "Enter 5 lines." << endl;
list<string> myList(5);
list<string>::iterator it = myList.begin();
while (cin >> input && it != myList.end())
{
myList.push_back(input);
if(input.size() > 40)
{
input.substr(0,40);
}
it++;
}
return 0;
}
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but now my list is size 5 but i can input more than 5
I am not sure if I understand correctly. If you need to store some strings in a list you could do it like this:
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#include <iostream>
#include <string>
#include <list>
using namespace std;
int main()
{
const int NUM_LINES = 5;
string line;
list <string> myList;
cout << "Enter 5 lines." << endl;
for (int i = 0; i < NUM_LINES; i++)
{
cout << "Enter line " << i + 1 << " ";
getline(cin, line);
myList.push_back(line);
}
// display the lines
for (const string& line : myList)
cout << line << "\n";
return 0;
}
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EDIT reason - see gunnerfunner's post below
Last edited on
Thomas - you're pushing back a list that has already allocated some memory
@gunnerfunner,
thanks, you were right. Corrected now
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