diff options
| author | Lars-Dominik Braun <lars@6xq.net> | 2015-06-09 14:02:04 +0200 |
|---|---|---|
| committer | Lars-Dominik Braun <lars@6xq.net> | 2015-06-09 14:02:04 +0200 |
| commit | 7ef723e1c217652d6b329faa6aa3120fbd91d24c (patch) | |
| tree | 887f896ad9adf289bdde208f991f07da65134309 /common.h | |
| parent | e437f7148ad5836a13d797eb322139f6a4b4668e (diff) | |
| download | hourglass-7ef723e1c217652d6b329faa6aa3120fbd91d24c.tar.gz hourglass-7ef723e1c217652d6b329faa6aa3120fbd91d24c.tar.bz2 hourglass-7ef723e1c217652d6b329faa6aa3120fbd91d24c.zip | |
Replace array size calculation with macro
Diffstat (limited to 'common.h')
| -rw-r--r-- | common.h | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -67,6 +67,8 @@ extern volatile uint8_t wakeup; void shutdownError (); #define sign(x) ((x < 0) ? -1 : 1) +/* get an array’s size/length */ +#define length(x) (sizeof(x)/sizeof(*x)) #endif /* COMMON_H */ |