towctrans
Header: <wctype.h>
Maps the wide character wc using the current C locale’s LC_CTYPE mapping category identified by desc.
# Declarations
wint_t towctrans( wint_t wc, wctrans_t desc );
(since C95)
# Parameters
wc: the wide character to mapdesc: the LC_CTYPE mapping, obtained from a call to wctrans
# Return value
The mapped value of wc using the mapping identified by desc in LC_CTYPE facet of the current C locale.
# Example
#include <locale.h>
#include <wctype.h>
#include <wchar.h>
#include <stdio.h>
int main(void)
{
setlocale(LC_ALL, "ja_JP.UTF-8");
const wchar_t kana[] = L"ヒラガナ";
size_t sz = sizeof kana / sizeof *kana;
wchar_t hira[sz];
for (size_t n = 0; n < sz; ++n)
hira[n] = towctrans(kana[n], wctrans("tojhira"));
printf("katakana characters %ls are %ls in hiragana\n", kana, hira);
}