AP_Common: add helper macro ARRAY_SIZE

2015-07-02 12:11:32 -03:00 · 2015-07-02 12:11:32 -03:00 · 82314ee4a3
commit 82314ee4a3
parent f1ee129423
1 changed files with 2 additions and 0 deletions
--- a/libraries/AP_Common/AP_Common.h
+++ b/libraries/AP_Common/AP_Common.h
@ -80,6 +80,8 @@
 #define LOWBYTE(i) ((uint8_t)(i))
 #define HIGHBYTE(i) ((uint8_t)(((uint16_t)(i))>>8))

+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
 // @}