WMEMCMP(3) Linux Programmer's Manual WMEMCMP(3)NAME
wmemcmp - compare two arrays of wide-characters
SYNOPSIS
#include <wchar.h>
int wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n);
DESCRIPTION
The wmemcmp() function is the wide-character equivalent of the memcmp(3) function. It compares the n wide-characters starting at s1 and
the n wide-characters starting at s2.
RETURN VALUE
The wmemcmp() function returns zero if the wide-character arrays of size n at s1 and s2 are equal. It returns an integer greater than zero
if at the first differing position i (i < n), the corresponding wide-character s1[i] is greater than s2[i]. It returns an integer less
than zero if at the first differing position i (i < n), the corresponding wide-character s1[i] is less than s2[i].
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|wmemcmp() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
SEE ALSO memcmp(3), wcscmp(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2015-08-08 WMEMCMP(3)
Check Out this Related Man Page
WMEMCMP(3) Linux Programmer's Manual WMEMCMP(3)NAME
wmemcmp - compare two arrays of wide-characters
SYNOPSIS
#include <wchar.h>
int wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n);
DESCRIPTION
The wmemcmp() function is the wide-character equivalent of the memcmp(3) function. It compares the n wide-characters starting at s1 and
the n wide-characters starting at s2.
RETURN VALUE
The wmemcmp() function returns zero if the wide-character arrays of size n at s1 and s2 are equal. It returns an integer greater than zero
if at the first differing position i (i < n), the corresponding wide-character s1[i] is greater than s2[i]. It returns an integer less
than zero if at the first differing position i (i < n), the corresponding wide-character s1[i] is less than s2[i].
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+---------+
|Interface | Attribute | Value |
+----------+---------------+---------+
|wmemcmp() | Thread safety | MT-Safe |
+----------+---------------+---------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
SEE ALSO memcmp(3), wcscmp(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2015-08-08 WMEMCMP(3)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)