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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.\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
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.\" ISO/IEC 9899:1999
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.\"
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.TH ISWSPACE 3 1999-07-25 "GNU" "Linux Programmer's Manual"
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.SH NAME
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iswspace \- test for whitespace wide character
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.SH SYNOPSIS
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.nf
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.B #include <wctype.h>
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.sp
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.BI "int iswspace(wint_t " wc );
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.fi
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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 iswspace ()
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function is the wide-character equivalent of the
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.BR isspace (3)
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function.
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2007-04-12 22:42:49 +00:00
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It tests whether \fIwc\fP is a wide character
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2007-04-24 19:40:35 +00:00
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belonging to the wide-character class "space".
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2004-11-03 13:51:07 +00:00
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.PP
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2007-04-24 19:40:35 +00:00
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The wide-character class "space" is disjoint from the wide-character class
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"graph" and therefore also disjoint from its subclasses "alnum", "alpha",
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"upper", "lower", "digit", "xdigit", "punct".
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.\" Note: UNIX98 (susv2/xbd/locale.html) says that "space" and "graph" may
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2006-08-03 13:57:30 +00:00
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.\" have characters in common, except U+0020. But C99 (ISO/IEC 9899:1999
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.\" section 7.25.2.1.10) says that "space" and "graph" are disjoint.
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.PP
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The wide-character class "space" contains the wide-character class "blank".
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.PP
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2007-04-24 19:40:35 +00:00
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The wide-character class "space" always contains at least the space character
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2008-06-09 15:49:35 +00:00
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and the control
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characters \(aq\\f\(aq, \(aq\\n\(aq, \(aq\\r\(aq, \(aq\\t\(aq, \(aq\\v\(aq.
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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 iswspace ()
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intro.1, time.1, adjtimex.2, capget.2, eventfd.2, fcntl.2, getrlimit.2, getsockopt.2, gettimeofday.2, intro.2, ioctl_list.2, ioperm.2, mlock.2, pivot_root.2, poll.2, prctl.2, ptrace.2, sched_setscheduler.2, select_tut.2, semget.2, sigaltstack.2, signalfd.2, sysctl.2, timer_settime.2, timerfd_create.2, wait.2, CPU_SET.3, argz_add.3, assert_perror.3, atexit.3, backtrace.3, bcmp.3, clearenv.3, ctime.3, dl_iterate_phdr.3, dlopen.3, ecvt.3, errno.3, error.3, ether_aton.3, exit.3, fenv.3, ferror.3, finite.3, flockfile.3, fnmatch.3, fpathconf.3, fpclassify.3, ftime.3, ftok.3, ftw.3, fwide.3, getaddrinfo.3, gethostbyname.3, getlogin.3, getnameinfo.3, getnetent.3, getopt.3, getprotoent.3, getrpcent.3, getservent.3, glob.3, hsearch.3, inet.3, isalpha.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, longjmp.3, lsearch.3, malloc.3, matherr.3, mblen.3, mbsinit.3, mbtowc.3, on_exit.3, printf.3, pthread_attr_init.3, pthread_attr_setaffinity_np.3, pthread_attr_setdetachstate.3, pthread_attr_setguardsize.3, pthread_attr_setinheritsched.3, pthread_attr_setschedparam.3, pthread_attr_setschedpolicy.3, pthread_attr_setscope.3, pthread_attr_setstack.3, pthread_attr_setstackaddr.3, pthread_attr_setstacksize.3, pthread_cancel.3, pthread_cleanup_push.3, pthread_equal.3, pthread_getattr_np.3, pthread_getcpuclockid.3, pthread_setaffinity_np.3, pthread_setcancelstate.3, pthread_setconcurrency.3, pthread_setschedparam.3, pthread_setschedprio.3, ptsname.3, putenv.3, putgrent.3, raise.3, rcmd.3, regex.3, rexec.3, rpc.3, rpmatch.3, rtnetlink.3, scandir.3, sem_init.3, setaliasent.3, setbuf.3, setenv.3, setjmp.3, signbit.3, stdio_ext.3, strtod.3, strtol.3, strtoul.3, system.3, termios.3, timeradd.3, tzset.3, ualarm.3, wctomb.3, xdr.3, st.4, tty_ioctl.4, core.5, elf.5, proc.5, bootparam.7, capabilities.7, icmp.7, ip.7, ipv6.7, math_error.7, mdoc.samples.7, mq_overview.7, pthreads.7, raw.7, regex.7, socket.7, tcp.7, tzselect.8: Global fix: s/non-zero/nonzero/
The tendency in English, as prescribed in style guides like
Chicago MoS, is towards removing hyphens after prefixes
like "non-" etc.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2010-01-16 16:40:55 +00:00
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function returns nonzero if \fIwc\fP is a wide character
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belonging to the wide-character class "space".
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Otherwise it returns zero.
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.SH "CONFORMING TO"
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C99.
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.SH NOTES
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2007-06-08 09:56:56 +00:00
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The behavior of
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.BR iswspace ()
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2007-06-22 18:25:23 +00:00
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depends on the
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.B LC_CTYPE
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category of the
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current locale.
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2007-05-16 18:25:50 +00:00
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.SH "SEE ALSO"
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.BR isspace (3),
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.BR iswctype (3)
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