• C

use of isalpha

what is the use of the isalpha macro.what header file is required.
in what applications is it used.
marcel321Asked:
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marcel321Author Commented:
Edited text of question.
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imladrisCommented:
You use it to determine whether a character is an alphabetic character (i.e. a-z or A-Z). You can use the header file <ctype.h>. In this case you will get the macro version of isalpha. You can also use it without the header. In that case you get the function version of isalpha.
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