diff options
| author | Jörg Frings-Fürst <debian@jff.email> | 2026-03-08 17:28:33 +0100 |
|---|---|---|
| committer | Jörg Frings-Fürst <debian@jff.email> | 2026-03-08 17:28:33 +0100 |
| commit | 5f59a34ab747dde8ede7357f3431bf06bd6002fe (patch) | |
| tree | 056a4477fd870d454d5be5868cddab829a47f4d2 /lib/unistr/u16-cmp.c | |
| parent | 27dae84ed92f1ef0300263091972338d12e78348 (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.c | 36 |
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; } |
