DIY: Read N Characters Given Read4 II — Call Multiple Times
Understand how to implement a read function that reads n characters from a file by repeatedly using the read4 API. This lesson guides you in managing multiple calls and buffering to ensure accurate character reading from a file accessible only through read4.
We'll cover the following...
We'll cover the following...
Problem statement
Suppose that you can only read a given ＄file using a specific API method called read4. You will implement the read method to read n characters from the ＄file. This read method can be called multiple times.
read4() API:
The read4() API reads the next four consecutive characters from the ＄file, until the ＄file no longer has any characters that need to be read. After reading, the read4() method writes the characters into the array named buff. ...