
ISALPHA(3)                 UNIX Programmer's Manual                 ISALPHA(3)

NNAAMMEE
     iissaallpphhaa - alphabetic character test

SSYYNNOOPPSSIISS
     ##iinncclluuddee <<ccttyyppee..hh>>

     _i_n_t
     iissaallpphhaa(_i_n_t _c)

DDEESSCCRRIIPPTTIIOONN
     The iissaallpphhaa() function tests for any character for which isupper(3) or
     islower(3) is true and for which none of iscntrl(3),  isdigit(3),
     ispunct(3),  or isspace(3) is true.  In the _`_`_C_'_' locale, iissaallpphhaa() re-
     turns true only for the characters for which isupper(3) or islower(3) is
     true.

RREETTUURRNN VVAALLUUEESS
     The iissaallpphhaa() macro returns zero if the character tests false and returns
     non-zero if the character tests true.

SSEEEE AALLSSOO
     isascii(3),  isalnum(3),  iscntrl(3),  isdigit(3),  isgraph(3),
     islower(3),  isprint(3),  ispunct(3),  isspace(3),  isupper(3),
     isxdigit(3),  toascii(3),  tolower(3),  toupper(3),  stdio(3) ascii(7)

SSTTAANNDDAARRDDSS
     The iissaallpphhaa() function conforms to ANSI C3.159-1989 (``ANSI C'').

BSD Experimental                 June 29, 1991                               1


































