Question

I am making a system where the user inputs numbers on the console and add them eventually. The problem I have is, if the user inputs a character rather than a number, the program would tell there is an error or it can not add because there was a character inserted on the system. I made the system with if-else-else-if, but that took me ages to code since I placed || functions like for example:

if (x=="a" || x=="b" || x == "c" ) ....

and so on…

Is there a way for C++ to detect that if the input value is a character or a string, the program would have an error.

Answer 1

Hint:

if ( x >= 'a' && x <= 'z' )

will tell you if x is between 'a' and 'z' (similar for capital letters).