[PATCH] mbrtowc: remove a redundant condition

[Benno Schulenberg]

* lib/mbrtowc-impl-utf8.h: There is no need to check for c == 0xf4
when !(c < 0xf4), as ten lines earlier c <= 0xf4 was established.
---
 ChangeLog               | 6 ++++++
 lib/mbrtowc-impl-utf8.h | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 76ea9c3eb..d2dfe5e0c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2021-03-21  Benno Schulenberg  <bensberg@telfort.nl>  (tiny change)
+
+       mbrtowc: remove a redundant condition
+       * lib/mbrtowc-impl-utf8.h: There is no need to check for c == 0xf4
+       when !(c < 0xf4), as ten lines earlier c <= 0xf4 was established.
+
 2021-03-21  Bruno Haible  <bruno@clisp.org>
 
        doc: More updates.
diff --git a/lib/mbrtowc-impl-utf8.h b/lib/mbrtowc-impl-utf8.h
index 4f3bbb31b..38cecfcc5 100644
--- a/lib/mbrtowc-impl-utf8.h
+++ b/lib/mbrtowc-impl-utf8.h
@@ -96,7 +96,7 @@
 
                     if ((c2 ^ 0x80) < 0x40
                         && (c >= 0xf1 || c2 >= 0x90)
-                        && (c < 0xf4 || (c == 0xf4 && c2 < 0x90)))
+                        && (c < 0xf4 || c2 < 0x90))
                       {
                         if (m == 2)
                           goto incomplete;
-- 
2.29.3