SQLITE_TRANSIENT undefined in Swift

by

The definitions

#define SQLITE_STATIC      ((sqlite3_destructor_type)0)
#define SQLITE_TRANSIENT   ((sqlite3_destructor_type)-1)

from <sqlite3.h> are not imported to Swift, probably due to the “unsafe” pointer casting.

A possible Swift definition is shown in the
SQLite.swift project, in
Statement.swift:

let SQLITE_STATIC = sqlite3_destructor_type(COpaquePointer(bitPattern: 0))
let SQLITE_TRANSIENT = sqlite3_destructor_type(COpaquePointer(bitPattern: -1))

For Swift 2 you will need

let SQLITE_STATIC = unsafeBitCast(0, sqlite3_destructor_type.self)
let SQLITE_TRANSIENT = unsafeBitCast(-1, sqlite3_destructor_type.self)

(taken from “Helpers.swift” from the Swift 2 branch of the SQLite.swift project).

Update for Swift 3:

let SQLITE_STATIC = unsafeBitCast(0, to: sqlite3_destructor_type.self)
let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self)

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