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ISLOWER(3)		 BSD Library Functions Manual		    ISLOWER(3)

NAME
     islower --	lower-case character test

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <ctype.h>

     int
     islower(int c);

DESCRIPTION
     The islower() function tests for any lower-case letters.  For single C
     chars locales (see	multibyte(3)) the value	of the argument	is repre-
     sentable as an unsigned char or the value of EOF.	In the ASCII character
     set, this includes	the following characters (with their numeric values
     shown in octal):

     141 ``a''	   142 ``b''	 143 ``c''     144 ``d''     145 ``e''
     146 ``f''	   147 ``g''	 150 ``h''     151 ``i''     152 ``j''
     153 ``k''	   154 ``l''	 155 ``m''     156 ``n''     157 ``o''
     160 ``p''	   161 ``q''	 162 ``r''     163 ``s''     164 ``t''
     165 ``u''	   166 ``v''	 167 ``w''     170 ``x''     171 ``y''
     172 ``z''

RETURN VALUES
     The islower() function returns zero if the	character tests	false and re-
     turns non-zero if the character tests true.

COMPATIBILITY
     Although islower()	accepts	arguments outside of the range of the unsigned
     char type in locales with large character sets, this is a 4.4BSD exten-
     sion and the iswlower() function should be	used instead for maximum
     portability.

SEE ALSO
     ctype(3), iswlower(3), multibyte(3), tolower(3), ascii(7)

STANDARDS
     The islower() function conforms to	ISO/IEC	9899:1990 ("ISO	C90").

BSD				October	6, 2002				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | COMPATIBILITY | SEE ALSO | STANDARDS

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