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Annotation of src/lib/libc/gen/islower.3, Revision 1.8

1.8     ! ross        1: .\"    $NetBSD: islower.3,v 1.7 2001/09/16 02:57:04 wiz Exp $
1.4       cgd         2: .\"
1.1       cgd         3: .\" Copyright (c) 1991 The Regents of the University of California.
                      4: .\" All rights reserved.
                      5: .\"
                      6: .\" This code is derived from software contributed to Berkeley by
                      7: .\" the American National Standards Committee X3, on Information
                      8: .\" Processing Systems.
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                     10: .\" Redistribution and use in source and binary forms, with or without
                     11: .\" modification, are permitted provided that the following conditions
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                     13: .\" 1. Redistributions of source code must retain the above copyright
                     14: .\"    notice, this list of conditions and the following disclaimer.
                     15: .\" 2. Redistributions in binary form must reproduce the above copyright
                     16: .\"    notice, this list of conditions and the following disclaimer in the
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                     20: .\"    This product includes software developed by the University of
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                     22: .\" 4. Neither the name of the University nor the names of its contributors
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                     26: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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1.4       cgd        38: .\"     @(#)islower.3  5.2 (Berkeley) 6/29/91
1.1       cgd        39: .\"
                     40: .Dd June 29, 1991
                     41: .Dt ISLOWER 3
                     42: .Os
                     43: .Sh NAME
                     44: .Nm islower
                     45: .Nd lower-case character test
1.5       perry      46: .Sh LIBRARY
                     47: .Lb libc
1.1       cgd        48: .Sh SYNOPSIS
1.8     ! ross       49: .Fd #include \*[Lt]ctype.h\*[Gt]
1.1       cgd        50: .Ft int
                     51: .Fn islower "int c"
                     52: .Sh DESCRIPTION
                     53: The
                     54: .Fn islower
                     55: function tests for any lower-case letter
                     56: .\" or any of an
                     57: .\" implementation-defined set of characters
                     58: for which none of
                     59: .Xr iscntrl 3 ,
                     60: .Xr isdigit 3 ,
                     61: .Xr ispunct 3 ,
                     62: or
                     63: .Xr isspace 3
                     64: is true.
1.6       wiz        65: In the
1.1       cgd        66: .Em ``C''
                     67: locale,
                     68: .Fn islower
                     69: returns true only for the characters defined as lower-case letters.
                     70: .Sh RETURN VALUES
                     71: The
                     72: .Fn islower
                     73: macro returns zero if the character tests false and
                     74: returns non-zero if the character tests true.
                     75: .Sh SEE ALSO
                     76: .Xr isalnum 3 ,
                     77: .Xr isalpha 3 ,
1.3       jtc        78: .Xr isascii 3 ,
                     79: .Xr isblank 3 ,
1.1       cgd        80: .Xr iscntrl 3 ,
                     81: .Xr isdigit 3 ,
                     82: .Xr isgraph 3 ,
                     83: .Xr isprint 3 ,
                     84: .Xr ispunct 3 ,
                     85: .Xr isspace 3 ,
                     86: .Xr isupper 3 ,
                     87: .Xr isxdigit 3 ,
1.7       wiz        88: .Xr stdio 3 ,
1.1       cgd        89: .Xr toascii 3 ,
                     90: .Xr tolower 3 ,
                     91: .Xr toupper 3 ,
                     92: .Xr ascii 7
                     93: .Sh STANDARDS
                     94: The
                     95: .Fn islower
                     96: function conforms to
                     97: .St -ansiC .

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