IONewZero
Allocates memory for an array of the specified type and zero-initializes that memory.
Declaration
#define IONewZero(type, count)Parameters
- type:
The data type to store in the block of memory. The macro uses the size of this type to determine how much memory to allocate for each array entry.
- count:
The number of array entries to allocate.
Return Value
A pointer to the allocated memory block, or NULL on failure.
Discussion
This is a general-purpose utility to allocate memory. There are no alignment guarantees on the returned memory, and alignment may vary depending on the configuration. To allocate memory for use in I/O transfers, create an IOBufferMemoryDescriptor instead.