1 files changed, 59 insertions, 0 deletions
diff --git a/stdio-common/_fitoa_word.c b/stdio-common/_fitoa_word.c
new file mode 100644
index 0000000..8064b1e
--- /dev/null
+++ b/stdio-common/_fitoa_word.c
@@ -0,0 +1,59 @@
+/* Internal function for converting integers to ASCII.
+   Copyright (C) 1994-2025 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <_itoa.h>
+
+char *
+_itoa_word (_ITOA_WORD_TYPE value, char *buflim,
+	    unsigned int base, int upper_case)
+{
+  const char *digits = (upper_case
+			? _itoa_upper_digits
+			: _itoa_lower_digits);
+
+  switch (base)
+    {
+#define SPECIAL(Base)							      \
+    case Base:								      \
+      do								      \
+	*--buflim = digits[value % Base];				      \
+      while ((value /= Base) != 0);					      \
+      break
+
+      SPECIAL (10);
+      SPECIAL (16);
+      SPECIAL (8);
+    default:
+      do
+	*--buflim = digits[value % base];
+      while ((value /= base) != 0);
+    }
+  return buflim;
+}
+#undef SPECIAL
+
+char *
+_fitoa_word (_ITOA_WORD_TYPE value, char *buf, unsigned int base,
+	     int upper_case)
+{
+  char tmpbuf[sizeof (value) * 4];	      /* Worst case length: base 2.  */
+  char *cp = _itoa_word (value, tmpbuf + sizeof (value) * 4, base, upper_case);
+  while (cp < tmpbuf + sizeof (value) * 4)
+    *buf++ = *cp++;
+  return buf;
+}