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-rw-r--r--lib/unistr/u16-prev.c23
1 files changed, 14 insertions, 9 deletions
diff --git a/lib/unistr/u16-prev.c b/lib/unistr/u16-prev.c
index e1a68549..dc995c67 100644
--- a/lib/unistr/u16-prev.c
+++ b/lib/unistr/u16-prev.c
@@ -1,12 +1,21 @@
/* Iterate over previous character in UTF-16 string.
- Copyright (C) 2002, 2006-2007, 2009-2015 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2006-2007, 2009-2016 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2002.
- This program 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 3 of the License, or
- (at your option) any later version.
+ This program is free software: you can redistribute it and/or
+ modify it under the terms of either:
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at your
+ option) any later version.
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your
+ option) any later version.
+
+ or both in parallel, as here.
This program 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
@@ -33,16 +42,12 @@ u16_prev (ucs4_t *puc, const uint16_t *s, const uint16_t *start)
*puc = c_1;
return s - 1;
}
-#if CONFIG_UNICODE_SAFETY
if (c_1 >= 0xdc00)
-#endif
if (s - 1 != start)
{
uint16_t c_2 = s[-2];
-#if CONFIG_UNICODE_SAFETY
if (c_2 >= 0xd800 && c_2 < 0xdc00)
-#endif
{
*puc = 0x10000 + ((c_2 - 0xd800) << 10) + (c_1 - 0xdc00);
return s - 2;