> On Nov 2, 2016, at 09:42, Joe Groff via swift-users <[email protected]>
> wrote:
>
>>
>> On Nov 1, 2016, at 6:40 PM, Bernardo Breder via swift-users
>> <[email protected]> wrote:
>>
>> Hello,
>>
>> I want to create a mini http server project and execute at Ubuntu 15. The
>> Xcode compile and access the function "autoreleasepool", but when i compile
>> the same code at Ubuntu, this function not found
>>
>> For example, i can compile the code above at Xcode:
>>
>> while true {
>> autoreleasepool {
>> var test: Data = "HTTP/1.1 200 OK\r\nContent-Length:
>> 1\r\n\r\na".data(using: .utf8)!
>> }
>> }
>>
>> But when i try to compile at Ubuntu:
>>
>> git@breder:~$ cat main.swift
>> import Foundation
>>
>> while true {
>> autoreleasepool {
>> var test: Data = "HTTP/1.1 200 OK\r\nContent-Length:
>> 1\r\n\r\na".data(using: .utf8)!
>> }
>> }
>>
>> git@breder:~$ swiftc main.swift
>> main.swift:4:5: error: use of unresolved identifier 'autoreleasepool'
>> autoreleasepool {
>> ^~~~~~~~~~~~~~~
>
> Autoreleasepools are an ObjC compatibility feature. They aren't necessary in
> standalone Swift.
But they are necessary in Swift programs on Apple platforms (that don’t use
RunLoop, anyway). Philippe, what do you think? What’s the right way to write
cross-platform code that doesn’t use RunLoop or dispatch_main for an implicit
autorelease pool?
(/me remembers +[NSAutoreleasePool drain] from the ObjC-GC days)
Jordan
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