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Add max() macro

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Arnaud ANDRE 2015-12-31 16:17:04 +01:00
parent b58c758b39
commit ded9e81a45
1 changed files with 9 additions and 0 deletions
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9
common.h
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@ -65,6 +65,15 @@ typedef enum {
*/
#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
/**
* max(a,b)
*/
#define max(a,b) \
({ \
__typeof__ (a) _a = (a); \
__typeof__ (b) _b = (b); \
_a > _b ? _a : _b; \
})
/**
* cksum - compute IP checksum