A prototype for a function callback that allocates memory of a requested size.
- iOS 2.0+
- macOS 10.0+
- tvOS 9.0+
- watchOS 2.0+
- Mac Catalyst 13.0+Beta
- Core Foundation
This function allocates a block of memory of at least
allocbytes (always greater than 0).
A bitfield that is currently not used (always set to 0).
An untyped pointer to program-defined data. Allocate memory for the data and assign a pointer to it. This data is often control information for the allocator. It may be
A pointer to the start of the block.