2004-11-03 13:51:07 +00:00
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.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
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.\"
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" References consulted:
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.\" GNU glibc-2 source code and manual
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.\" Dinkumware C library reference http://www.dinkumware.com/
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intro.1, time.1, accept.2, bind.2, connect.2, execve.2, flock.2, getdents.2, getpriority.2, getuid.2, intro.2, ioctl.2, mincore.2, mknod.2, personality.2, ptrace.2, read.2, recv.2, select_tut.2, send.2, sendfile.2, shmctl.2, sigaction.2, signal.2, stat.2, times.2, truncate.2, umask.2, wait.2, MB_CUR_MAX.3, MB_LEN_MAX.3, argz_add.3, btowc.3, clearenv.3, clock.3, cmsg.3, end.3, endian.3, errno.3, exit.3, fgetwc.3, fgetws.3, fopen.3, fputwc.3, fputws.3, fseek.3, fwide.3, getfsent.3, getgrnam.3, gethostid.3, getipnodebyname.3, getmntent.3, getpwnam.3, getwchar.3, grantpt.3, iconv.3, iconv_close.3, iconv_open.3, insque.3, intro.3, iswalnum.3, iswalpha.3, iswblank.3, iswcntrl.3, iswctype.3, iswdigit.3, iswgraph.3, iswlower.3, iswprint.3, iswpunct.3, iswspace.3, iswupper.3, iswxdigit.3, malloc.3, mblen.3, mbrlen.3, mbrtowc.3, mbsinit.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, mbtowc.3, mkstemp.3, mktemp.3, nl_langinfo.3, openpty.3, posix_openpt.3, printf.3, ptsname.3, putwchar.3, qecvt.3, rcmd.3, readdir.3, rexec.3, rpc.3, setnetgrent.3, shm_open.3, sigpause.3, stdin.3, stpcpy.3, strftime.3, strptime.3, syslog.3, towctrans.3, towlower.3, towupper.3, ttyslot.3, ungetwc.3, unlocked_stdio.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscasecmp.3, wcscat.3, wcschr.3, wcscmp.3, wcscpy.3, wcscspn.3, wcsdup.3, wcslen.3, wcsncasecmp.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcspbrk.3, wcsrchr.3, wcsrtombs.3, wcsspn.3, wcsstr.3, wcstok.3, wcstombs.3, wcswidth.3, wctob.3, wctomb.3, wctrans.3, wctype.3, wcwidth.3, wmemchr.3, wmemcmp.3, wmemcpy.3, wmemmove.3, wmemset.3, wprintf.3, console_ioctl.4, pts.4, elf.5, filesystems.5, hosts.5, proc.5, ttytype.5, boot.7, capabilities.7, credentials.7, epoll.7, glob.7, koi8-r.7, path_resolution.7, pty.7, signal.7, suffixes.7, time.7, unicode.7, unix.7, uri.7, utf-8.7: global fix: s/Unix/UNIX/
The man pages were rather inconsistent in the use of "Unix"
versus "UNIX". Let's go with the trademark usage.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-10-12 04:45:38 +00:00
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.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html
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2004-11-03 13:51:07 +00:00
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.\"
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fgetws.3, fputws.3, mbrtowc.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscat.3, wcscpy.3, wcslen.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcsrtombs.3, wcsstr.3, wcstok.3, wcstombs.3, wcwidth.3: Global fix: consistent use of "null wide character"
Bring more consistency to the discussion of
"[terminating] null wide character"
by writing (at least in the initial use in a page)
"[terminating] null wide character (L'\0')".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2011-09-28 03:46:39 +00:00
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.TH WCSNLEN 3 2011-09-28 "GNU" "Linux Programmer's Manual"
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2004-11-03 13:51:07 +00:00
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.SH NAME
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wcsnlen \- determine the length of a fixed-size wide-character string
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.SH SYNOPSIS
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.nf
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.B #include <wchar.h>
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.sp
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.BI "size_t wcsnlen(const wchar_t *" s ", size_t " maxlen );
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.fi
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2010-09-15 05:53:27 +00:00
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.sp
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.in -4n
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Feature Test Macro Requirements for glibc (see
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.BR feature_test_macros (7)):
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.in
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.sp
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.BR wcsnlen ():
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faccessat.2, dprintf.3, fexecve.3, fmemopen.3, mbsnrtowcs.3, mkfifoat.3, opendir.3, stpcpy.3, stpncpy.3, strnlen.3, strsignal.3, wcpcpy.3, wcpncpy.3, wcscasecmp.3, wcsdup.3, wcsncasecmp.3, wcsnlen.3, wcsnrtombs.3: ffix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-09-19 16:57:10 +00:00
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.PD 0
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.ad l
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.RS 4
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.TP 4
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Since glibc 2.10:
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_XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
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.TP
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2010-09-15 05:53:27 +00:00
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Before glibc 2.10:
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_GNU_SOURCE
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faccessat.2, dprintf.3, fexecve.3, fmemopen.3, mbsnrtowcs.3, mkfifoat.3, opendir.3, stpcpy.3, stpncpy.3, strnlen.3, strsignal.3, wcpcpy.3, wcpncpy.3, wcscasecmp.3, wcsdup.3, wcsncasecmp.3, wcsnlen.3, wcsnrtombs.3: ffix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-09-19 16:57:10 +00:00
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.RE
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.ad
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.PD
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2004-11-03 13:51:07 +00:00
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.SH DESCRIPTION
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2007-05-12 09:06:04 +00:00
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The
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.BR wcsnlen ()
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function is the wide-character equivalent
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of the
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.BR strnlen (3)
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function.
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2007-04-12 22:42:49 +00:00
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It returns the number of wide-characters in the string pointed to by
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fgetws.3, fputws.3, mbrtowc.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscat.3, wcscpy.3, wcslen.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcsrtombs.3, wcsstr.3, wcstok.3, wcstombs.3, wcwidth.3: Global fix: consistent use of "null wide character"
Bring more consistency to the discussion of
"[terminating] null wide character"
by writing (at least in the initial use in a page)
"[terminating] null wide character (L'\0')".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2011-09-28 03:46:39 +00:00
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\fIs\fP, not including the terminating null wide character (L\(aq\\0\(aq),
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but at most
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2011-09-21 05:03:27 +00:00
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\fImaxlen\fP
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wide characters (note: this parameter is not a byte count).
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2007-05-12 09:06:04 +00:00
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In doing this,
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.BR wcsnlen ()
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looks only at the first \fImaxlen\fP
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2011-09-21 06:40:16 +00:00
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wide characters at \fIs\fP and never beyond \fIs+maxlen\fP.
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2004-11-03 13:51:07 +00:00
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.SH "RETURN VALUE"
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2007-05-12 09:06:04 +00:00
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The
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.BR wcsnlen ()
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function returns \fIwcslen(s)\fP, if that is less than
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fgetws.3, fputws.3, mbrtowc.3, mbsnrtowcs.3, mbsrtowcs.3, mbstowcs.3, wcpcpy.3, wcpncpy.3, wcrtomb.3, wcscat.3, wcscpy.3, wcslen.3, wcsncat.3, wcsncmp.3, wcsncpy.3, wcsnlen.3, wcsnrtombs.3, wcsrtombs.3, wcsstr.3, wcstok.3, wcstombs.3, wcwidth.3: Global fix: consistent use of "null wide character"
Bring more consistency to the discussion of
"[terminating] null wide character"
by writing (at least in the initial use in a page)
"[terminating] null wide character (L'\0')".
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2011-09-28 03:46:39 +00:00
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\fImaxlen\fP, or \fImaxlen\fP if there is no null wide character among the
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2004-11-03 13:51:07 +00:00
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first \fImaxlen\fP wide characters pointed to by \fIs\fP.
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2010-09-15 05:54:04 +00:00
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.SH VERSIONS
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The
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.BR wcsnlen ()
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function is provided in glibc since version 2.1.
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2004-11-03 13:51:07 +00:00
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.SH "CONFORMING TO"
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This function is a GNU extension.
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.SH "SEE ALSO"
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.BR strnlen (3),
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.BR wcslen (3)
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