C++ Tutorial: Testing Characters Using the cctype library

[@allusivestorm762]

This was the most helpful and straight forward c++ video I have used all semester, thank you

[@ProfessorHankStalica]

Glad you found it helpful and thanks for the comment and support.

[@ionel6448]

Great tutorial!! Really helped me loop through and understand my assignment!!!

[@ProfessorHankStalica]

Glad it helped!

[@Genoprototype]

This was really useful, thank you!
Btw how would you be able to have the user input a string and then display what each type of character is?

[@ProfessorHankStalica]

Just iterate over the string, testing each character one at a time and report the results.

[@avg_user-dd2yb]

Finally understood thanks, professor

[@ProfessorHankStalica]

You are most welcome

[@mihailvrabie7644]

Thanks a lot for your help!!!

[@akmansr7149]

Sir, do these function work on string literal of C++ or only on Null terminated C-style strings?

[@ProfessorHankStalica]

Hi ya..not sure if I understand the question because a string literal in C++ is a null terminated C-style string. That's how they are represented in memory.
It's like asking, does this only work for a variable or does it work for a variable?

[@akmansr7149]

@@ProfessorHankStalica I'm sorry. i meant, in c++ we use *data-type* string (string name) and in C-style string we used to use char array[ ]. So, my question is does cctype function work on the string data type that comes with #include header file.

[@ProfessorHankStalica]

@@akmansr7149 You would need to convert a string object into a c-string first. You can use the c_str() method for string objects. Although, later versions of C++ support equivalent versions of cctype for string objects. I have a video on it which can give you an idea: ruclips.net/video/Pvym4UDZJ8k/видео.html

[@eyout7973]

very helpful tnx

[@ProfessorHankStalica]

Glad it helped!

[@paulharman2099]

Good tutorial!

[@ProfessorHankStalica]

Glad it was helpful!

[@BuCz2004]

can we not use string in isdigit()

[@ProfessorHankStalica]

No, isdigit() only accepts characters. It's a character testing function, not a string-testing function.
Pretty sure you can pass it an element of a string though..
string s = "12345";
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.
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isdigit(s[2])

[@BuCz2004]

@@ProfessorHankStalica how can we pass a string in this functions

[@ProfessorHankStalica]

@@BuCz2004 If you have a string variable named foo and you want to pass it as an argument to one of these functions, use the string's c_str method. So, for example:
string foo;
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if(isdigit(foo.c_str()))
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