Buffer in Operating System
As the name suggests, a buffer is temporary storage used to store input and output commands. All input and output commands are buffered in the operating system’s buffer.
fflush in C++
What is alternative of Fflush Stdin in C++? The call to fflush(stdin) is undefined behavior in C (and, consequently, in C++). Use cin.get() instead of getchar() and you should be fine.
System cls in C
What is System CLS in C? Using system("cls") – For TurboC Compiler system() is a library function of stdlib.h header file. This function is used to run system/command prompt commands and here cls is a command to clear the output screen.
Other Information
What is flush true in Python? The flush parameter in Python with print() function. The flush parameter is used to flush (clear) the internal buffer/stream (or we can say it is used to flush the output stream), it has two values "False" and "True".
What is Stdin in C programming? Short for standard input, stdin is an input stream where data is sent to and read by a program. It is a file descriptor in Unix-like operating systems, and programming languages, such as C, Perl, and Java.
What argument is passed to a fflush? (B) stdin argument is passed to fflush(). The fflush() method clears the I/O buffer associated with the open file given by the FILE reference argument. If somehow the file was opened to writing, fflush() will write the document’s contents.
What is feof in C? C feof function is used to determine if the end of the file (stream) specified has been reached or not. This function keeps on searching the end of file (eof) in your file program. C feof function returns true in case the end of the file is reached; otherwise, it returns false.