From dcc191d798389eff4df036b2c92800febf349a22 Mon Sep 17 00:00:00 2001
From: ache <ache@FreeBSD.org>
Date: Sat, 8 Oct 1994 17:36:44 +0000
Subject: Handle EOF case in all macros by ANSI standard. Cast all ints < 0 to
 (unsigned char) to fix common problem with sign extention on signed char.

---
 include/ctype.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'include/ctype.h')

diff --git a/include/ctype.h b/include/ctype.h
index a37fc1c..0a34886 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -103,9 +103,18 @@ __END_DECLS
 #endif
 
 #if defined(_USE_CTYPE_INLINE_)
+
+#ifndef EOF
+#define EOF (-1)
+#endif
+
 static __inline int
 __istype(_BSD_RUNE_T_ c, unsigned long f)
 {
+	if (c == EOF)
+		return 0;
+	if (c < 0)
+		c = (unsigned char) c;
 	return((((c & _CRMASK) ? ___runetype(c) :
 	    _CurrentRuneLocale->runetype[c]) & f) ? 1 : 0);
 }
@@ -113,6 +122,10 @@ __istype(_BSD_RUNE_T_ c, unsigned long f)
 static __inline int
 __isctype(_BSD_RUNE_T_ c, unsigned long f)
 {
+	if (c == EOF)
+		return 0;
+	if (c < 0)
+		c = (unsigned char) c;
 	return((((c & _CRMASK) ? 0 :
 	    _DefaultRuneLocale.runetype[c]) & f) ? 1 : 0);
 }
@@ -122,6 +135,10 @@ __isctype(_BSD_RUNE_T_ c, unsigned long f)
 static __inline _BSD_RUNE_T_
 toupper(_BSD_RUNE_T_ c)
 {
+	if (c == EOF)
+		return EOF;
+	if (c < 0)
+		c = (unsigned char) c;
 	return((c & _CRMASK) ?
 	    ___toupper(c) : _CurrentRuneLocale->mapupper[c]);
 }
@@ -129,6 +146,10 @@ toupper(_BSD_RUNE_T_ c)
 static __inline _BSD_RUNE_T_
 tolower(_BSD_RUNE_T_ c)
 {
+	if (c == EOF)
+		return EOF;
+	if (c < 0)
+		c = (unsigned char) c;
 	return((c & _CRMASK) ?
 	    ___tolower(c) : _CurrentRuneLocale->maplower[c]);
 }
-- 
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