COMPILER DESIGN

Detailed explanation-1: -The function “getch in c” is used to get a character as input from the user. The input provided by the user is not displayed on the output screen. Code execution is paused until a character is entered when a getch function is called. A getch() function returns the equivalent ASCII value for the character entered.

Detailed explanation-2: -The getchar() is capable of reading from the standard input. Hence, getchar() becomes equivalent to the getc(stdin). The getch() is capable of reading a single character from any given keyboard. Since it doesn’t make use of any buffer, the entered character returns immediately without having to wait for the enter key.

Detailed explanation-3: -The single character input/output functions are Getchar () and putchar (). Getchar() is used to get a single character and require key after input.

Detailed explanation-4: -getchar() in C is a function used to take the input of a single character from the standard input stream present in the stdin library. The getchar in C returns the unsigned char cast to the int value of the character it reads and does not take any parameter.