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-rw-r--r--newlib/libc/ctype/tolower.c2
-rw-r--r--newlib/libc/ctype/toupper.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/newlib/libc/ctype/tolower.c b/newlib/libc/ctype/tolower.c
index 66ba7233c..8a3843ef2 100644
--- a/newlib/libc/ctype/tolower.c
+++ b/newlib/libc/ctype/tolower.c
@@ -67,7 +67,7 @@ _DEFUN(tolower,(c),int c)
wchar_t wc;
if (mbtowc (&wc, s, 1) >= 0
&& wctomb (s, (wchar_t) towlower ((wint_t) wc)) == 1)
- c = s[0];
+ c = (unsigned char) s[0];
}
return c;
#else
diff --git a/newlib/libc/ctype/toupper.c b/newlib/libc/ctype/toupper.c
index 1b298d508..2527a69d3 100644
--- a/newlib/libc/ctype/toupper.c
+++ b/newlib/libc/ctype/toupper.c
@@ -66,7 +66,7 @@ _DEFUN(toupper,(c),int c)
wchar_t wc;
if (mbtowc (&wc, s, 1) >= 0
&& wctomb (s, (wchar_t) towupper ((wint_t) wc)) == 1)
- c = s[0];
+ c = (unsigned char) s[0];
}
return c;
#else