<<< Basic Bank | Assistant Manager (ICT) | Written Test - 2019 | Exam Taker - AUST

1. getch() vs getche()

1. getc():

1. It reads a single character from a given input stream and returns the corresponding integer value (ASCII) on success.

2. It returns EOF on failure.

3. e.g.  

int main()

{

printf("%c", getc(stdin));

return (0);

}

4. Input: g    Output: g

2. getchar():

1. The getc() vs getchar() is getc() can read from any input stream, but getchar() reads from standard input.

2. So, getchar() is equivalent to getc(stdin)

3. e.g.  

int main()

{

printf("%c", getchar());

return 0;

}

4. Input: g    Output: g

3. getch():

1. getch() is a nonstandard function and is present in conio.h header file which is mostly used by MS-DOS compilers e.g. Turbo C.

2. It's not part of the C standard library or ISO C, nor it's defined by POSIX.  

4. getche():

1. Like getch(), this is also a non-standard function present in conio.h 

2. It reads a single character from the keyboard and displays immediately on the output screen without waiting for enter key.

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