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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | STANDARDS | HISTORY | NOTES | SEE ALSO | COLOPHON |
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wcsncasecmp(3) Library Functions Manual wcsncasecmp(3)
wcsncasecmp - compare two fixed-size wide-character strings,
ignoring case
Standard C library (libc, -lc)
#include <wchar.h>
int wcsncasecmp(const wchar_t s1[.n], const wchar_t s2[.n], size_t n);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
wcsncasecmp():
Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
The wcsncasecmp() function is the wide-character equivalent of
the strncasecmp(3) function. It compares the wide-character
string pointed to by s1 and the wide-character string pointed to
by s2, but at most n wide characters from each string, ignoring
case differences (towupper(3), towlower(3)).
The wcsncasecmp() function returns zero if the wide-character
strings at s1 and s2, truncated to at most length n, are equal
except for case distinctions. It returns a positive integer if
truncated s1 is greater than truncated s2, ignoring case. It
returns a negative integer if truncated s1 is smaller than
truncated s2, ignoring case.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────┬───────────────┬────────────────┐
│ Interface │ Attribute │ Value │
├──────────────────────────────┼───────────────┼────────────────┤
│ wcsncasecmp() │ Thread safety │ MT-Safe locale │
└──────────────────────────────┴───────────────┴────────────────┘
POSIX.1-2008.
glibc 2.1.
The behavior of wcsncasecmp() depends on the LC_CTYPE category of
the current locale.
strncasecmp(3), wcsncmp(3)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report
for this manual page, see
⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
This page was obtained from the tarball man-pages-6.9.1.tar.gz
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⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
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man-pages@man7.org
Linux man-pages 6.9.1 2024-05-02 wcsncasecmp(3)
Pages that refer to this page: strcasecmp(3), wcsncmp(3)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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