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Add os_remove_in_array()

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This can be used to remove members from an array.

Signed-off-by: Emanuel Taube <emanuel.taube@gmail.com>
This commit is contained in:
Emanuel Taube 2014-02-25 10:59:44 +01:00 committed by Jouni Malinen
parent c1151e47d5
commit 064eb057ca
1 changed files with 15 additions and 0 deletions
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15
src/utils/os.h
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@ -549,6 +549,21 @@ static inline void * os_realloc_array(void *ptr, size_t nmemb, size_t size)
return os_realloc(ptr, nmemb * size);
}
/**
* os_remove_in_array - Remove a member from an array by index
* @ptr: Pointer to the array
* @nmemb: Current member count of the array
* @size: The size per member of the array
* @idx: Index of the member to be removed
*/
static inline void os_remove_in_array(void *ptr, size_t nmemb, size_t size,
size_t idx)
{
if (idx < nmemb - 1)
os_memmove(((unsigned char *) ptr) + idx * size,
((unsigned char *) ptr) + (idx + 1) * size,
(nmemb - idx - 1) * size);
}
/**
* os_strlcpy - Copy a string with size bound and NUL-termination