C++ how to read from a file

#include <fstream>
#include <iostream>

using namespace std;

int main() {
    /* You create a stream using the file in a 
     * similar way to how we use other streams.
     */
    ifstream in;
    // Open the file
    in.open("names.txt");
    if(in.fail())
        cout << "File didn't open"<<endl;

    int count = 0;
    string line;
    while (true) {
        /* Get line will work as long as there is
         * a line left. Once there are no lines 
         * remaining it will fail. 
		 */
        getline(in, line);  
        if (in.fail()) break;
        
        /* Process the line here. In this case you are
         * just counting the lines.
         */
        count ++;
    }
    
    cout << "This file has " << count << " lines." << endl;
    return 0;
}

File reading c++

int a, b;
    
ifstream bd; 
myfile.open("file.txt");

if (myfile.is_open())
	while (bd >> a >> b)
    	cout << a << b << endl;

else cout << "ERROR";

-1

Similar codes

0 vote311 views1 answer
C++ CHEAT SHEAT
C++
1 vote344 views1 answer
Multiply two numbers <=10^18 %m in cpp
C++
2 votes323 views3 answers
Cpp online compiler
C++
0 vote303 views1 answer
Cpp full form
C++
0 vote308 views1 answer
If argv == string
C++
0 vote297 views1 answer
Get rid of those includes c++
C++
3 votes295 views4 answers
C++ get last character of string
C++
4 votes297 views3 answers
Check lowercase letters c++
C++
0 vote277 views1 answer
Unreal engine delay c++
C++
1 vote285 views1 answer
Prime numbers less than a given number c++
C++