use type for predefined bus symbols

2018-05-13 18:18:04 +02:00
parent 17376368a7
commit 18ba48e86f
1 changed files with 5 additions and 5 deletions
@@ -72,19 +72,19 @@ using std::vector;
 typedef unsigned char symbol_t;

 /** escape symbol, either followed by 0x00 for the value 0xA9, or 0x01 for the value 0xAA. */
-#define ESC 0xA9
+#define ESC ((symbol_t)0xA9)

 /** synchronization symbol. */
-#define SYN 0xAA
+#define SYN ((symbol_t)0xAA)

 /** positive acknowledge symbol. */
-#define ACK 0x00
+#define ACK ((symbol_t)0x00)

 /** negative acknowledge symbol. */
-#define NAK 0xFF
+#define NAK ((symbol_t)0xFF)

 /** the broadcast destination address. */
-#define BROADCAST 0xFE
+#define BROADCAST ((symbol_t)0xFE)

 /**
 * Parse an unsigned int value.