1WCTRANS(3)                 Linux Programmer's Manual                WCTRANS(3)
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NAME

6       wctrans - wide-character translation mapping
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SYNOPSIS

9       #include <wctype.h>
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11       wctrans_t wctrans(const char *name);
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DESCRIPTION

14       The  wctrans_t type represents a mapping which can map a wide character
15       to another wide character.  Its nature is implementation-dependent, but
16       the  special  value  (wctrans_t) 0 denotes an invalid mapping.  Nonzero
17       wctrans_t values can be passed to the towctrans(3) function to actually
18       perform the wide-character mapping.
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20       The  wctrans()  function returns a mapping, given by its name.  The set
21       of valid names depends on the LC_CTYPE category of the current  locale,
22       but the following names are valid in all locales.
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24           "tolower" - realizes the tolower(3) mapping
25           "toupper" - realizes the toupper(3) mapping
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RETURN VALUE

28       The  wctrans()  function  returns  a  mapping descriptor if the name is
29       valid.  Otherwise, it returns (wctrans_t) 0.
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ATTRIBUTES

32       For an  explanation  of  the  terms  used  in  this  section,  see  at‐
33       tributes(7).
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35       ┌─────────────────────────────────────┬───────────────┬────────────────┐
36       │Interface                            │ Attribute     │ Value          │
37       ├─────────────────────────────────────┼───────────────┼────────────────┤
38       │wctrans()                            │ Thread safety │ MT-Safe locale │
39       └─────────────────────────────────────┴───────────────┴────────────────┘
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CONFORMING TO

42       POSIX.1-2001, POSIX.1-2008, C99.
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NOTES

45       The  behavior of wctrans() depends on the LC_CTYPE category of the cur‐
46       rent locale.
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SEE ALSO

49       towctrans(3)
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COLOPHON

52       This page is part of release 5.13 of the Linux  man-pages  project.   A
53       description  of  the project, information about reporting bugs, and the
54       latest    version    of    this    page,    can     be     found     at
55       https://www.kernel.org/doc/man-pages/.
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59GNU                               2021-03-22                        WCTRANS(3)
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