What is the output of the above code?

Question

Consider the following code snippet 

char ch;

cout<<“Enter an alphabet”; cin>>ch;

cout<<toupper(ch);

What is the output of the above code? Give a sample output. If the above code is used in a computer that has no cctype file, how will you modify the code to get the same output?

Answer 1

It reads a character and convert it into uppercase.

Eg: 

Enter an alphabet: a 

The output is A. 

If a computer has no cctype header file the code is as follows.

char ch;

cout<<“Enter an alphabet”; cin>>ch;

if (ch>=97 && ch<<122)