C++ | W/R Files - fstream (HD)
Programming Language: C++
Subject: W/R Files - fstream
Total Number of Episodes: 1
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In C++, the fstream library provides a set of classes for reading from and writing to files. The classes ifstream, ofstream, and fstream are derived from the base istream, ostream, and iostream classes respectively, allowing you to perform file input/output operations.
To use the fstream library, you need to include the ＜fstream＞ header file in your C++ program. Here's a brief explanation of the commonly used classes and their operations:
1. ifstream (Input File Stream):
This class is used for reading data from a file.
To open a file for reading, you can create an ifstream object and call the open() function with the file name as a parameter.
After opening the file, you can read data from it using various member functions like ＞＞ operator, getline(), or read().
2. ofstream (Output File Stream):
This class is used for writing data to a file.
To open a file for writing, you can create an ofstream object and call the open() function with the file name as a parameter.
After opening the file, you can write data to it using various member functions like ＜＜ operator or write().
3. fstream (File Stream):
This class provides both input and output operations on a file, combining the functionality of ifstream and ofstream.
You can use an fstream object to read from or write to a file, depending on how you open it.
These file stream classes provide a range of member functions for file operations such as opening, closing, reading, writing, seeking, and error handling. You can refer to the C++ documentation for more details on specific member functions and their usage with file streams (ifstream, ofstream, and fstream).