From b1fa65091437c2d55fc1ef4512e244340583510a Mon Sep 17 00:00:00 2001
From: Lephenixnoir <sebastien.michelland@protonmail.com>
Date: Tue, 18 May 2021 11:51:49 +0200
Subject: [PATCH] ctype: test and fix character conversion functions (DONE)

Some shenanigans with the scope of variables in block expressions.
---
 STATUS          | 2 +-
 include/ctype.h | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/STATUS b/STATUS
index b9e6796..da431ea 100644
--- a/STATUS
+++ b/STATUS
@@ -32,7 +32,7 @@ DONE:       Function/symbol/macro is defined, builds, links, and is tested
 
 7.4 <ctype.h>
     7.4.1 is*: DONE
-    7.4.2 to*: TEST
+    7.4.2 to*: DONE
 
 7.5 <errno.h>
     7.5.2 EDOM EILSEQ ERANGE: DONE
diff --git a/include/ctype.h b/include/ctype.h
index e250f24..372de13 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -94,13 +94,13 @@ extern int toupper(int c);
 })
 
 #define tolower(c) ({ \
-	int __c = (c); \
-	isupper(__c) ? (__c | 0x20) : __c; \
+	int __c0 = (c); \
+	isupper(__c0) ? (__c0 | 0x20) : __c0; \
 })
 
 #define toupper(c) ({ \
-	int __c = (c); \
-	islower(__c) ? (__c & 0xdf) : __c; \
+	int __c0 = (c); \
+	islower(__c0) ? (__c0 & 0xdf) : __c0; \
 })
 
 #endif /*__CTYPE_H__*/