WCTRANS(3) Linux Programmer's Manual WCTRANS(3)NAME
wctrans - wide-character translation mapping
SYNOPSIS
#include <wctype.h>
wctrans_t wctrans(const char *name);
DESCRIPTION
The wctrans_t type represents a mapping which can map a wide character to another wide character. Its nature is implementation-dependent,
but the special value (wctrans_t) 0 denotes an invalid mapping. Nonzero wctrans_t values can be passed to the towctrans(3) function to
actually perform the wide-character mapping.
The wctrans() function returns a mapping, given by its name. The set of valid names depends on the LC_CTYPE category of the current
locale, but the following names are valid in all locales.
"tolower" - realizes the tolower(3) mapping
"toupper" - realizes the toupper(3) mapping
RETURN VALUE
The wctrans() function returns a mapping descriptor if the name is valid. Otherwise, it returns (wctrans_t) 0.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+----------------+
|Interface | Attribute | Value |
+----------+---------------+----------------+
|wctrans() | Thread safety | MT-Safe locale |
+----------+---------------+----------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
NOTES
The behavior of wctrans() depends on the LC_CTYPE category of the current locale.
SEE ALSO towctrans(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 WCTRANS(3)
Check Out this Related Man Page
WCTRANS(3) Linux Programmer's Manual WCTRANS(3)NAME
wctrans - wide-character translation mapping
SYNOPSIS
#include <wctype.h>
wctrans_t wctrans(const char *name);
DESCRIPTION
The wctrans_t type represents a mapping which can map a wide character to another wide character. Its nature is implementation-dependent,
but the special value (wctrans_t) 0 denotes an invalid mapping. Nonzero wctrans_t values can be passed to the towctrans(3) function to
actually perform the wide-character mapping.
The wctrans() function returns a mapping, given by its name. The set of valid names depends on the LC_CTYPE category of the current
locale, but the following names are valid in all locales.
"tolower" - realizes the tolower(3) mapping
"toupper" - realizes the toupper(3) mapping
RETURN VALUE
The wctrans() function returns a mapping descriptor if the name is valid. Otherwise, it returns (wctrans_t) 0.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+----------------+
|Interface | Attribute | Value |
+----------+---------------+----------------+
|wctrans() | Thread safety | MT-Safe locale |
+----------+---------------+----------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C99.
NOTES
The behavior of wctrans() depends on the LC_CTYPE category of the current locale.
SEE ALSO towctrans(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 WCTRANS(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)