Pointer: is it pointing to an alphanumeric character?

[acevans2]

Hello guys.

How might I go about deciding if

"ptr1 points to an alphanumeric"?

That's the condition for a loop in an assignment I have. I am trying to cut punctuation marks out of a string that I'm reading.

[Bazzy]

Try isalnum() http://www.cplusplus.com/reference/clibrary/cctype/isalnum.html

[anders43]

or ! ispunct( int )