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util: Add U_ZERO and U_ZERO_ARRAY wrappers for memset.

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Ensures the type is always correct.
This commit is contained in:
Ryan Pavlik 2019-06-18 13:51:23 -05:00
parent 02be89bf35
commit 15b61b5c4f
1 changed files with 20 additions and 0 deletions
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20
src/xrt/auxiliary/util/u_misc.h
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@ -10,6 +10,7 @@
#pragma once
#include <stdlib.h>
#include <string.h> // for memset
#ifdef __cplusplus
extern "C" {
@ -41,6 +42,25 @@ extern "C" {
#define U_TYPED_ARRAY_CALLOC(TYPE, COUNT) \
((TYPE *)calloc((COUNT), sizeof(TYPE)))
/*!
* Zeroes the correct amount of memory based on the type pointed-to by the
* argument.
*
* Use instead of memset(..., 0, ...) on a structure or pointer to structure.
*
* @ingroup aux_util
*/
#define U_ZERO(PTR) memset((PTR), 0, sizeof(*(PTR)))
/*!
* Zeroes the correct amount of memory based on the type and size of the static
* array named in the argument.
*
* Use instead of memset(..., 0, ...) on an array.
*
* @ingroup aux_util
*/
#define U_ZERO_ARRAY(ARRAY) memset((ARRAY), 0, sizeof(ARRAY))
#ifdef __cplusplus
}