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-rw-r--r--REORG.TODO/wcsmbs/wcswidth.c38
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diff --git a/REORG.TODO/wcsmbs/wcswidth.c b/REORG.TODO/wcsmbs/wcswidth.c
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+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
+
+   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
+   <http://www.gnu.org/licenses/>.  */
+
+#include "wcwidth.h"
+
+/* Determine number of column positions required for first N wide
+   characters (or fewer if S ends before this) in S.  */
+int
+wcswidth (const wchar_t *s, size_t n)
+{
+  int result = 0;
+
+  while (n-- > 0 && *s != L'\0')
+    {
+      int now = internal_wcwidth (*s);
+      if (now == -1)
+	return -1;
+      result += now;
+      ++s;
+    }
+
+  return result;
+}