Answer to Question #75582 in C++ for Nik
Question #75582
Using txt file Horoscope for example, how would you create a file object and Load the file into a 2D vector: vector<vector<char>>
Expert's answer
#include <fstream>
#include <vector>
using namespace std;
int main()
{
// vector of line vectors
vector<vector<char>> array;
ifstream input_stream("Horoscope.txt"); // create file object
if (input_stream) // if the file object was successfully created
{
int line = 0; // line counter
array.push_back(vector<char>()); // add first empty line vector
char ch;
// get characters from the stream until EOF is reached
while (input_stream.get(ch))
{
array[line].push_back(ch); // add character to the end of the line vector
if (ch == '\n') // if newline encountered
{
++line; // increase line counter
array.push_back(vector<char>()); // add next empty line vector
}
}
}
return 0;
}
#include <vector>
using namespace std;
int main()
{
// vector of line vectors
vector<vector<char>> array;
ifstream input_stream("Horoscope.txt"); // create file object
if (input_stream) // if the file object was successfully created
{
int line = 0; // line counter
array.push_back(vector<char>()); // add first empty line vector
char ch;
// get characters from the stream until EOF is reached
while (input_stream.get(ch))
{
array[line].push_back(ch); // add character to the end of the line vector
if (ch == '\n') // if newline encountered
{
++line; // increase line counter
array.push_back(vector<char>()); // add next empty line vector
}
}
}
return 0;
}
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