---
title: mem
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/sparseopaquepreconditioner_float/mem
---

# mem

The unaltered memory pointer that passes as the first parameter of the apply function.

## Declaration

```swift
var mem: UnsafeMutableRawPointer
```

## See Also

### Inspecting Preconditioner Properties

- [apply](accelerate/sparseopaquepreconditioner_float/apply.md)
- [type](accelerate/sparseopaquepreconditioner_float/type.md)