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r22297: move ZERO_*, ARRAY_SIZE and PTR_DIFF macros into libreplace

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metze
This commit is contained in:
Stefan Metzmacher
2007-04-17 08:03:01 +00:00
committed by Gerald (Jerry) Carter
parent 38aeb585a1
commit b69c950858
3 changed files with 35 additions and 25 deletions
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25
source/lib/util/util.h
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@@ -41,31 +41,6 @@ extern const char *panic_action;
#include "util/byteorder.h"
#include "lib/util/util_proto.h"
/**
* zero a structure
*/
#define ZERO_STRUCT(x) memset((char *)&(x), 0, sizeof(x))
/**
* zero a structure given a pointer to the structure
*/
#define ZERO_STRUCTP(x) do { if ((x) != NULL) memset((char *)(x), 0, sizeof(*(x))); } while(0)
/**
* zero a structure given a pointer to the structure - no zero check
*/
#define ZERO_STRUCTPN(x) memset((char *)(x), 0, sizeof(*(x)))
/**
* pointer difference macro
*/
#define PTR_DIFF(p1,p2) ((ptrdiff_t)(((const char *)(p1)) - (const char *)(p2)))
/**
* work out how many elements there are in a static array
*/
#define ARRAY_SIZE(a) (sizeof(a)/sizeof(a[0]))
/**
* assert macros
*/