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isalpha()             ctype Macro (ctype.h)             isalpha()




Check if a character is a letter

#iinncclluuddee <ccttyyppee.hh>
iinntt iissaallpphhaa(_c) iinntt _c;

isalpha tests  whether the argument  _c is a letter  (AA-ZZ or aa-zz).
It returns a number other than zero if _c is an alphabetic charac-
ter, and zero  if it is not.  isalpha assumes  that _c is an ASCII
character or EOF.

***** Example *****

For an example of this macro, see the entry for ctype.

***** See Also *****

ASCII, ctype







































COHERENT Lexicon                                           Page 1

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