- In the examples above, we read a line from the standard input. But getline isn’t picky. It lets us read from any stream. Now, let’s see how to get a line from a file.
- istream& getline (istream& is, string& str, char delim) ... Get line from stream into string.
- So a Windows compiler would convert \n to \r\n, but a UNIX compiler would keep it as-is. # Get lines from a file using getline().
- A getline() function gets characters from the input stream and adds them to the given string object until it determines that the character is delimiting.
- So you could use getline() to read a line of text from a file, but when stdin is specified, standard input is read. Here’s a sample program
- The following example demonstrates how to use the getline function to read user input, and to process a stream line by line, or by parts of a line using the delim...
- null-terminated and includes the newline character, if one was. found. If *lineptr is set to NULL before the call, then getline() will. allocate a buffer for storing the line.
- The getline function is a versatile and powerful tool that allows you to read input from the user as a string, making it an essential part of any C++ developer’s toolkit.
- The C++ getline() is a standard library function that is used to read a string or a line from an input stream. It is a part of the <string> header.