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# sparse_set_matrix_property(_:_:)

Sets the given property for a matrix object.

```
func sparse_set_matrix_property(_ A: UnsafeMutableRawPointer!, _ pname: sparse_matrix_property) -> sparse_status
```

## Parameters

`A`

The sparse matrix object.

`pname`

The property name to set to <doc://com.apple.documentation/documentation/Swift/true>.  See [`sparse_matrix_property`](/documentation/Accelerate/sparse_matrix_property) for options.

## Return Value

[`SPARSE_SUCCESS`](/documentation/Accelerate/SPARSE_SUCCESS) when property is successfully set, otherwise return [`SPARSE_CANNOT_SET_PROPERTY`](/documentation/Accelerate/SPARSE_CANNOT_SET_PROPERTY).

## Discussion

The matrix object must not have had values inserted, else [`SPARSE_CANNOT_SET_PROPERTY`](/documentation/Accelerate/SPARSE_CANNOT_SET_PROPERTY) is returned and the property is not set.Certain groups of properties are mutually exclusive and setting multiple values within a group is undefined.

> Important:
> Apple provides the BLAS and LAPACK libraries under the Accelerate framework to be in line with LAPACK 3.9.1. Starting with iOS 26, iPadOS 26, macOS 26, tvOS 26, visionOS 26, and watchOS 26, the libraries are in line with LAPACK 3.12.0. These new interfaces provide additional functionality, as well as a new ILP64 interface. To use the new interfaces, define `ACCELERATE_NEW_LAPACK` before including the Accelerate or vecLib headers. For ILP64 interfaces, also define `ACCELERATE_LAPACK_ILP64`. For Swift projects, specify `ACCELERATE_NEW_LAPACK=1` and `ACCELERATE_LAPACK_ILP64=1` as preprocessor macros in Xcode build settings under Apple Clang - Preprocessing > Preprocessor Macros.

---

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