Why are there two different getline() functions (if indeed there are)?
The global getline() function works with C++ std::string objects. The istream::getline() methods work with “classic” C strings (pointers to char).
getline
Can I use 2 or more delimiters in C++ function getline? [duplicate]
You can read a line using std::getline, then pass the line to a std::stringstream and read the comma separated values off it string line; ifstream file(“text.txt”); if(file.is_open()){ while(getline(file, line)){ // get a whole line std::stringstream ss(line); while(getline(ss, line, ‘,’)){ // You now have separate entites here } }
c++ getline() isn’t waiting for input from console when called multiple times
The problem is you are mixing calls to getline() with the use of the operator >>. Remember that operator >> ignored leading white space so will correctly continue across lines boundaries. But stops reading after the input has successfully been retrieved and thus will not swallow trailing ‘\n’ characters. Thus if you use a getline() … Read more
getline() does not work if used after some inputs [duplicate]
Characters are extracted until either (n – 1) characters have been extracted or the delimiting character is found (which is delimiter if this parameter is specified, or ‘\n’ otherwise). The extraction also stops if the end of the file is reached in the input sequence or if an error occurs during the input operation. When … Read more
std::cin.getline( ) vs. std::cin
Let’s take std::cin.getline() apart. First, there’s std::. This is the namespace in which the standard library lives. It has hundreds of types, functions and objects. std::cin is such an object. It’s the standard character input object, defined in <iostream>. It has some methods of its own, but you can also use it with many free … Read more
Using getline(cin, s) after cin [duplicate]
cout << “Enter the number: “; int number; cin >> number; cin.ignore(256, ‘\n’); // remaining input characters up to the next newline character // are ignored cout << “Enter names: “; string names; getline(cin, names);
checking for eof in string::getline
The canonical reading loop in C++ is: while (getline(cin, str)) { } if (cin.bad()) { // IO error } else if (!cin.eof()) { // format error (not possible with getline but possible with operator>>) } else { // format error (not possible with getline but possible with operator>>) // or end of file (can’t make … Read more
cin and getline skipping input [duplicate]
If you’re using getline after cin >> something, you need to flush the newline out of the buffer in between. My personal favourite for this if no characters past the newline are needed is cin.sync(). However, it is implementation defined, so it might not work the same way as it does for me. For something … Read more
Using getline() in C++
If you’re using getline() after cin >> something, you need to flush the newline character out of the buffer in between. You can do it by using cin.ignore(). It would be something like this: string messageVar; cout << “Type your message: “; cin.ignore(); getline(cin, messageVar); This happens because the >> operator leaves a newline \n … Read more
reading a line from ifstream into a string variable
Use the std::getline() from <string>. istream & getline(istream & is,std::string& str) So, for your case it would be: std::getline(read,x);