locale/FreeBSD/towlower.3

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  32 .\"     @(#)tolower.3   8.1 (Berkeley) 6/4/93
  33 .\" $FreeBSD: src/lib/libc/locale/towlower.3,v 1.6 2007/01/09 00:28:01 imp Exp $
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  35 .Dd October 3, 2002
  36 .Dt TOWLOWER 3
  37 .Os
  38 .Sh NAME
  39 .Nm towlower ,
  40 .Nm towlower_l
  41 .Nd "upper case to lower case letter conversion (wide character version)"
  42 .Sh LIBRARY
  43 .Lb libc
  44 .Sh SYNOPSIS
  45 .In wctype.h
  46 .Ft wint_t
  47 .Fo towlower
  48 .Fa "wint_t wc"
  49 .Fc
  50 .In wctype.h
  51 .In xlocale.h
  52 .Ft wint_t
  53 .Fo towlower_l
  54 .Fa "wint_t wc"
  55 .Fa "locale_t loc"
  56 .Fc
  57 .Sh DESCRIPTION
  58 The
  59 .Fn towlower
  60 function converts an upper-case letter to the corresponding lower-case
  61 letter.
  62 .Pp
  63 Although the
  64 .Fn towlower
  65 function uses the current locale, the
  66 .Fn towlower_l
  67 function may be passed a locale directly. See
  68 .Xr xlocale 3
  69 for more information.
  70 .Sh RETURN VALUES
  71 If the argument is an upper-case letter, the
  72 .Fn towlower
  73 function returns the corresponding lower-case letter if there is
  74 one; otherwise, the argument is returned unchanged.
  75 .Sh SEE ALSO
  76 .Xr iswlower 3 ,
  77 .Xr tolower 3 ,
  78 .Xr towupper 3 ,
  79 .Xr wctrans 3 ,
  80 .Xr xlocale 3
  81 .Sh STANDARDS
  82 The
  83 .Fn towlower
  84 function conforms to
  85 .St -isoC-99 .