how to check for the “backspace” character in C

Question

I\'d like to know how to check if a user types the \"backspace\" character.

I\'m using the getch() function i.e. \"key = getch()\" in my C program and i

Answer 1

The type of i/o stream may helps. Standard input stream is a kind of line buffered stream, which do not flush until you write a '\n' char into it. Full buffered stream never flush until the buffer is full. If you write a backspace in full buff stream, the '\b' may be captured.

Reference the unix environment advantage program.