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

-1 vote282 views1 answer
Identity
C++
6 votes343 views1 answer
C++ replace character in string
C++
22 votes319 views3 answers
Get line C++
C++
0 vote320 views1 answer
Jquery ajax post json asp.net core
C++
0 vote346 views1 answer
Raspberry pi mount external hard drive
C++
0 vote307 views1 answer
Queue cpp
C++
0 vote351 views1 answer
Advanced c++ topics
C++
0 vote393 views6 answers
Std::string(size_t , char ) constructor:
C++
2 votes346 views2 answers
Cpp split string by space
C++
0 vote376 views1 answer
Use declaration to define a variable
C++