PROLOG<\/a> This manual page is part of the POSIX Programmer\u2019s Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.<\/p>\n towctrans, towctrans_l \u2014 wide-character transliteration<\/p>\n #include wint_t towctrans(wint_t wc<\/i>, wctrans_t desc<\/i>); For towctrans<\/i>(): The functionality described on this reference page is aligned with the ISO\u00a0C standard. Any conflict between the requirements described here and the ISO\u00a0C standard is unintentional. This volume of POSIX.1-2017 defers to the ISO\u00a0C standard.<\/p>\n The towctrans<\/i>() and towctrans_l<\/i>() functions shall transliterate the wide-character code wc<\/i> using the mapping described by desc<\/i>.<\/p>\n The current setting of the LC_CTYPE<\/i> category in the current locale or in the locale represented by locale<\/i>, respectively, should be the same as during the call to wctrans<\/i>() or wctrans_l<\/i>() that returned the value desc<\/i>.<\/p>\n If the value of desc<\/i> is invalid (that is, not obtained by a call to wctrans<\/i>() or desc<\/i> is invalidated by a subsequent call to setlocale<\/i>() that has affected category LC_CTYPE<\/i>), the result is unspecified.<\/p>\n If the value of desc<\/i> is invalid (that is, not obtained by a call to wctrans_l<\/i>() with the same locale object locale<\/i>) the result is unspecified.<\/p>\n An application wishing to check for error situations should set errno<\/i> to 0 before calling towctrans<\/i>() or towctrans_l<\/i>().<\/p>\n If errno<\/i> is non-zero on return, an error has occurred.<\/p>\n The behavior is undefined if the locale<\/i> argument to towctrans_l<\/i>() is the special locale object LC_GLOBAL_LOCALE or is not a valid locale object handle.<\/p>\n If successful, the towctrans<\/i>() and towctrans_l<\/i>() functions shall return the mapped value of wc<\/i> using the mapping described by desc<\/i>. Otherwise, they shall return wc<\/i> unchanged.<\/p>\n These functions may fail if:<\/p>\n
NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
RETURN VALUE<\/a>
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APPLICATION USAGE<\/a>
RATIONALE<\/a>
FUTURE DIRECTIONS<\/a>
SEE ALSO<\/a>
COPYRIGHT<\/a> <\/p>\n
\nPROLOG <\/a> <\/h2>\n
NAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
wint_t towctrans_l(wint_t wc<\/i>, wctrans_t desc<\/i>,
locale_t locale<\/i>);<\/p>\nDESCRIPTION <\/a> <\/h2>\n
RETURN VALUE <\/a> <\/h2>\n
ERRORS <\/a> <\/h2>\n