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-rw-r--r--firmware/include/ctype.h28
1 files changed, 14 insertions, 14 deletions
diff --git a/firmware/include/ctype.h b/firmware/include/ctype.h
index e0d20cc672..aba91a826b 100644
--- a/firmware/include/ctype.h
+++ b/firmware/include/ctype.h
@@ -43,29 +43,29 @@ extern const unsigned char _ctype_[257];
#endif
#ifndef __cplusplus
-#define isalpha(c) ((_ctype_+1)[(unsigned)(c)]&(_U|_L))
-#define isupper(c) ((_ctype_+1)[(unsigned)(c)]&_U)
-#define islower(c) ((_ctype_+1)[(unsigned)(c)]&_L)
-#define isdigit(c) ((_ctype_+1)[(unsigned)(c)]&_N)
-#define isxdigit(c) ((_ctype_+1)[(unsigned)(c)]&(_X|_N))
-#define isspace(c) ((_ctype_+1)[(unsigned)(c)]&_S)
-#define ispunct(c) ((_ctype_+1)[(unsigned)(c)]&_P)
-#define isalnum(c) ((_ctype_+1)[(unsigned)(c)]&(_U|_L|_N))
-#define isprint(c) ((_ctype_+1)[(unsigned)(c)]&(_P|_U|_L|_N|_B))
-#define isgraph(c) ((_ctype_+1)[(unsigned)(c)]&(_P|_U|_L|_N))
-#define iscntrl(c) ((_ctype_+1)[(unsigned)(c)]&_C)
+#define isalpha(c) ((_ctype_+1)[(unsigned char)(c)]&(_U|_L))
+#define isupper(c) ((_ctype_+1)[(unsigned char)(c)]&_U)
+#define islower(c) ((_ctype_+1)[(unsigned char)(c)]&_L)
+#define isdigit(c) ((_ctype_+1)[(unsigned char)(c)]&_N)
+#define isxdigit(c) ((_ctype_+1)[(unsigned char)(c)]&(_X|_N))
+#define isspace(c) ((_ctype_+1)[(unsigned char)(c)]&_S)
+#define ispunct(c) ((_ctype_+1)[(unsigned char)(c)]&_P)
+#define isalnum(c) ((_ctype_+1)[(unsigned char)(c)]&(_U|_L|_N))
+#define isprint(c) ((_ctype_+1)[(unsigned char)(c)]&(_P|_U|_L|_N|_B))
+#define isgraph(c) ((_ctype_+1)[(unsigned char)(c)]&(_P|_U|_L|_N))
+#define iscntrl(c) ((_ctype_+1)[(unsigned char)(c)]&_C)
/* Non-gcc versions will get the library versions, and will be
slightly slower */
#ifdef __GNUC__
# define toupper(c) \
- __extension__ ({ int __x = (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
+ __extension__ ({ int __x = (unsigned char) (c); islower(__x) ? (__x - 'a' + 'A') : __x;})
# define tolower(c) \
- __extension__ ({ int __x = (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
+ __extension__ ({ int __x = (unsigned char) (c); isupper(__x) ? (__x - 'A' + 'a') : __x;})
#endif
#endif /* !__cplusplus */
#ifndef __STRICT_ANSI__
-#define isascii(c) ((unsigned)(c)<=0177)
+#define isascii(c) ((unsigned char)(c)<=0177)
#define toascii(c) ((c)&0177)
#endif