Hi everyone,
The standard library has bitPattern initializers on pointers. But we
are missing initializers to create integers from pointers.
Someone needs to propose these APIs, walk them through
swift-evolution, write a patch for the library and add tests.
extension UInt {
init<T>(bitPattern: UnsafePointer<T>) {
self = UInt(Builtin.ptrtoint_Word(bitPattern._rawValue))
}
init<T>(bitPattern: UnsafeMutablePointer<T>) {
self = UInt(Builtin.ptrtoint_Word(bitPattern._rawValue))
}
}
extension Int {
init<T>(bitPattern: UnsafePointer<T>) {
self = Int(Builtin.ptrtoint_Word(bitPattern._rawValue))
}
init<T>(bitPattern: UnsafeMutablePointer<T>) {
self = Int(Builtin.ptrtoint_Word(bitPattern._rawValue))
}
}
https://bugs.swift.org/browse/SR-131
Dmitri
--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
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