minor fixes involving is_byte()

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2262 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -36,7 +36,7 @@ CVS code -
 	  buffered input and output, the first steps toward
 	  wide/multibyte character input and output, and verbatim input
 	  of double-byte Unicode characters instead of single-byte ASCII
-	  characters.  New functions is_byte_char(), get_buffer(),
+	  characters.  New functions is_byte(), get_buffer(),
 	  get_buffer_len(), buffer_to_keys(), unget_input(),
 	  get_input(), parse_kbinput(), and parse_verbatim_kbinput();
 	  new macro charcpy(); changes to do_char() (renamed to

src/proto.h

@@ -500,7 +500,7 @@ int regexec_safe(const regex_t *preg, const char *string, size_t nmatch,
 int regexp_bol_or_eol(const regex_t *preg, const char *string);
 #endif
 int num_of_digits(int n);
-bool is_byte(int c);
+bool is_byte(unsigned int c);
 bool parse_num(const char *str, ssize_t *val);
 size_t move_left(const char *buf, size_t pos);
 size_t move_right(const char *buf, size_t pos);

src/utils.c

@@ -67,9 +67,9 @@ int num_of_digits(int n)
     return i;
 }
 
-bool is_byte(int c)
+bool is_byte(unsigned int c)
 {
-    return ((unsigned int)c == (unsigned char)c);
+    return (c == (unsigned char)c);
 }
 
 /* Read a ssize_t from str, and store it in *val (if val is not NULL).