Functions provided in the ccytpe header file such as isupper, isdigit, and so on, can be used to test characters to see what type of characters they are. Let's take a look at them and how to use them in an example program.
// An updated version of this video can be found here:
https://youtu.be/37oGmZ7IBJs
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You can read about them in more detail here:
http://www.cplusplus.com/reference/cctype/
Watch my video on converting character cases:
https://youtu.be/pYd8aBSO9vk
Check out my C++ videos play list:
https://www.youtube.com/playlist?list=PLaatXkJEXKyIK736SvHJBY6cc8azGaxXo
