---
title: CSSM_REALLOC
framework: security
role: symbol
role_heading: Type Alias
path: security/cssm_realloc
---

# CSSM_REALLOC

## Declaration

```swift
typealias CSSM_REALLOC = (UnsafeMutableRawPointer?, CSSM_SIZE, UnsafeMutableRawPointer?) -> UnsafeMutableRawPointer?
```