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authorJörg Frings-Fürst <debian@jff.email>2026-03-08 17:28:33 +0100
committerJörg Frings-Fürst <debian@jff.email>2026-03-08 17:28:33 +0100
commit5f59a34ab747dde8ede7357f3431bf06bd6002fe (patch)
tree056a4477fd870d454d5be5868cddab829a47f4d2 /lib/unistr/u16-cmp.c
parent27dae84ed92f1ef0300263091972338d12e78348 (diff)
New upstream version 1.4.2upstream/1.4.2upstream
Diffstat (limited to 'lib/unistr/u16-cmp.c')
-rw-r--r--lib/unistr/u16-cmp.c36
1 files changed, 17 insertions, 19 deletions
diff --git a/lib/unistr/u16-cmp.c b/lib/unistr/u16-cmp.c
index cedf9d2e..8ebe5d22 100644
--- a/lib/unistr/u16-cmp.c
+++ b/lib/unistr/u16-cmp.c
@@ -1,5 +1,5 @@
/* Compare pieces of UTF-16 strings.
- Copyright (C) 1999, 2002, 2006, 2009-2025 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2002, 2006, 2009-2026 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2002.
This file is free software.
@@ -34,29 +34,27 @@ u16_cmp (const uint16_t *s1, const uint16_t *s2, size_t n)
/* Note that the UTF-16 encoding does NOT preserve lexicographic order.
Namely, if uc1 is a 16-bit character and [uc2a,uc2b] is a surrogate pair,
we must enforce uc1 < [uc2a,uc2b], even if uc1 > uc2a. */
- for (; n > 0;)
+ for (; n > 0; n--)
{
uint16_t c1 = *s1++;
uint16_t c2 = *s2++;
- if (c1 == c2)
+ if (c1 != c2)
{
- n--;
- continue;
+ if (c1 < 0xd800 || c1 >= 0xe000)
+ {
+ if (!(c2 < 0xd800 || c2 >= 0xe000))
+ /* c2 is a surrogate, but c1 is not. */
+ return -1;
+ }
+ else
+ {
+ if (c2 < 0xd800 || c2 >= 0xe000)
+ /* c1 is a surrogate, but c2 is not. */
+ return 1;
+ }
+ return (int)c1 - (int)c2;
+ /* > 0 if c1 > c2, < 0 if c1 < c2. */
}
- if (c1 < 0xd800 || c1 >= 0xe000)
- {
- if (!(c2 < 0xd800 || c2 >= 0xe000))
- /* c2 is a surrogate, but c1 is not. */
- return -1;
- }
- else
- {
- if (c2 < 0xd800 || c2 >= 0xe000)
- /* c1 is a surrogate, but c2 is not. */
- return 1;
- }
- return (int)c1 - (int)c2;
- /* > 0 if c1 > c2, < 0 if c1 < c2. */
}
return 0;
}