fusl/src/locale/wcsxfrm.c

#include <wchar.h>
#include <locale.h>
#include "locale_impl.h"
#include "libc.h"

/* collate only by code points */
size_t __wcsxfrm_l(wchar_t* restrict dest,
                   const wchar_t* restrict src,
                   size_t n,
                   locale_t loc) {
  size_t l = wcslen(src);
  if (l < n) {
    wmemcpy(dest, src, l + 1);
  } else if (n) {
    wmemcpy(dest, src, n - 1);
    dest[n - 1] = 0;
  }
  return l;
}

size_t wcsxfrm(wchar_t* restrict dest, const wchar_t* restrict src, size_t n) {
  return __wcsxfrm_l(dest, src, n, CURRENT_LOCALE);
}

weak_alias(__wcsxfrm_l, wcsxfrm_l);