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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3/towupper.3 | |
parent | Initial commit. (diff) | |
download | manpages-399644e47874bff147afb19c89228901ac39340e.tar.xz manpages-399644e47874bff147afb19c89228901ac39340e.zip |
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | man3/towupper.3 | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/man3/towupper.3 b/man3/towupper.3 new file mode 100644 index 0000000..0a9c1dd --- /dev/null +++ b/man3/towupper.3 @@ -0,0 +1,131 @@ +'\" t +.\" and Copyright (C) 2014 Michael Kerrisk <mtk.manpages@gmail.com> +.\" +.\" SPDX-License-Identifier: GPL-2.0-or-later +.\" +.\" References consulted: +.\" GNU glibc-2 source code and manual +.\" Dinkumware C library reference http://www.dinkumware.com/ +.\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html +.\" ISO/IEC 9899:1999 +.\" +.TH towupper 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +towupper, towupper_l \- convert a wide character to uppercase +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <wctype.h> +.PP +.BI "wint_t towupper(wint_t " wc ); +.BI "wint_t towupper_l(wint_t " wc ", locale_t " locale ); +.fi +.PP +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.PP +.BR towupper_l (): +.nf + Since glibc 2.10: + _XOPEN_SOURCE >= 700 + Before glibc 2.10: + _GNU_SOURCE +.fi +.SH DESCRIPTION +The +.BR towupper () +function is the wide-character equivalent of the +.BR toupper (3) +function. +If +.I wc +is a lowercase wide character, +and there exists an uppercase equivalent in the current locale, +it returns the uppercase equivalent of +.IR wc . +In all other cases, +.I wc +is returned unchanged. +.PP +The +.BR towupper_l () +function performs the same task, +but performs the conversion based on the character type information in +the locale specified by +.IR locale . +The behavior of +.BR towupper_l () +is undefined if +.I locale +is the special locale object +.B LC_GLOBAL_LOCALE +(see +.BR duplocale (3)) +or is not a valid locale object handle. +.PP +The argument +.I wc +must be representable as a +.I wchar_t +and be a valid character in the locale or be the value +.BR WEOF . +.SH RETURN VALUE +If +.I wc +was convertible to uppercase, +.BR towupper () +returns its uppercase equivalent; +otherwise it returns +.IR wc . +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR towupper () +T} Thread safety MT-Safe locale +T{ +.na +.nh +.BR towupper_l () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +.TP +.BR towupper () +C11, POSIX.1-2008 (XSI). +.TP +.BR towupper_l () +POSIX.1-2008. +.SH HISTORY +.TP +.BR towupper () +C99, POSIX.1-2001 (XSI). +Obsolete in POSIX.1-2008 (XSI). +.TP +.BR towupper_l () +POSIX.1-2008. +glibc 2.3. +.SH NOTES +The behavior of these functions depends on the +.B LC_CTYPE +category of the locale. +.PP +These functions are not very appropriate for dealing with Unicode characters, +because Unicode knows about three cases: upper, lower, and title case. +.SH SEE ALSO +.BR iswupper (3), +.BR towctrans (3), +.BR towlower (3), +.BR locale (7) |