---
title: "CFAllocatorGetContext(_:_:)"
framework: corefoundation
role: symbol
role_heading: Function
path: "corefoundation/cfallocatorgetcontext(_:_:)"
---

# CFAllocatorGetContext(_:_:)

Obtains the context of the specified allocator or of the default allocator.

## Declaration

```swift
func CFAllocatorGetContext(_ allocator: CFAllocator!, _ context: UnsafeMutablePointer<CFAllocatorContext>!)
```

## Parameters

- `allocator`: The allocator to examine. Pass NULL to obtain the context of the default allocator.
- `context`: On return, contains the context of allocator.

## Discussion

Discussion An allocator’s context, a structure of type CFAllocatorContext, holds pointers to various function callbacks (particularly those that allocate, reallocate, and deallocate memory for an object). The context also contains a version number and the info field for program-defined data. To obtain the value of the info field you usually first have to get an allocator’s context.