What is seekg and Tellg in C++?

seekg() is used to move the get pointer to a desired location with respect to a reference point. tellg() is used to know where the get pointer is in a file. seekp() is used to move the put pointer to a desired location with respect to a reference point. tellp() is used to know where the put pointer is in a file.

What is Tellg () in C++?

The tellg() function is used with input streams, and returns the current “get” position of the pointer in the stream. It has no parameters and returns a value of the member type pos_type, which is an integer data type representing the current position of the get stream pointer. Syntax:- pos_type tellg();

What is seekg function in C++?

In the C++ programming language, seekg is a function in the fstream library (part of the standard library) that allows you to seek to an arbitrary position in a file.

What is the use of seekg () and Seekp () functions?

seekg() and seekp() both are functions of File Handling in C++ and they are very important and useful feature of File Handling in C++. In File Handling of C++, we have two pointers one is get pointer and second is put pointer.

What is the difference between seekg and Seekp?

Use seekp() to position the file position before writing. Use seekg() to position the file position before reading.

How do you detect the end of a file?

End of file in C++ can be detected using eof. End Of File returns non – zero value if the end of file (EOF) is encountered and a zero otherwise.

What is Tellp and Tellg?

It returns the position of the current character in the output stream. It returns the position of the current character in the input stream. tellp() gives the position of the put pointer. tellg() gives the position of the get pointer.

What does seekg () do Mcq?

Explanation: The member function seekg is used to position back from the end of file object.

What are the arguments for seekg ()?

seekg() is a function in the iostream library that allows us to seek an arbitrary position in a file. It is mainly used to set the position of the next character to be extracted from the input stream from a given file in C++ file handling.

What is Random Access explain role of seekg and Seekp in random access?

Random file access with seekg() and seekp() Rather than reading all of the records until you get to the one you want, you can skip directly to the record you wish to retrieve. Random file access is done by manipulating the file pointer using either seekg() function (for input) and seekp() function (for output).

What does cat << EOF do?

This type of redirection instructs the shell to read input from the current source until a line containing only word (with no trailing blanks) is seen. All of the lines read up to that point are then used as the standard input for a command.