C file read examples

Learn more. Reading from file using read function Ask Question. Asked 8 years, 2 months ago. Active 10 months ago. Viewed k times. Improve this question. Jonathan Leffler k gold badges silver badges bronze badges. Wit Wit 1 1 gold badge 1 1 silver badge 8 8 bronze badges. And the question is? Ohh sry. How to read only one line — Wit.

If read has an error and returns -1 , your while loop will never terminate. Always expect errors. Therefore, we have successfully read the file and printed the content of the file to the monitor. So far, we have showed you how to open, read, write, and close a file. In this example, we first write some content to the file. Then, we read the data from the file and print it to the monitor. In this example, we are going to declare a class and then write the object to a binary file.

Then, we will read the binary file and print the output to the monitor. Files are mainly used to store the data, and they play an important role in real-world programming.

Furthermore, we showed you how to read and write data into both text files and binary files. In order to read the information from the file, we need to first open it. The opening of the file is done using ofstream or fstream object of the file. Hence, we need to specify the mode of file opening along with the file name.

But still it is considered to be a good practice to close the file after the desired operation is performed. In order to read or write the file, we need to first open the file using the open function and define its mode. In order to release all the resources and free the allocated memory close function is used. We have used the if and else statement to check whether the file is [resent or not.

If the file is not found, a proper message is displayed on the console. SAP Expand child menu Expand. Web Expand child menu Expand. Must Learn Expand child menu Expand. Big Data Expand child menu Expand. Live Project Expand child menu Expand. AI Expand child menu Expand. Toggle Menu Close.

Search for: Search.