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How to create NS_OPTIONS-style bitmask enumerations in Swift?
...which in turn conforms to _RawOptionSetType, Equatable, RawRepresentable, BitwiseOperationsType, and NilLiteralConvertible. We can create our own like this:
struct MyOptions : RawOptionSetType {
typealias RawValue = UInt
private var value: UInt = 0
init(_ value: UInt) { self.value = va...
When is “i += x” different from “i = i + x” in Python?
...eally want to be completist, you'd have to mention that the "if it exists" bit goes through the usual getattr mechanisms, except for some quirks with classic classes, and for types implemented in the C API it instead looks for either nb_inplace_add or sq_inplace_concat, and those C API functions hav...
App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...aidu.com/rest/2.0/xpan/file?method=list&dir=/test&order=time&start=0&limit=10&web=web&folder=0&access_token=[access_token]&desc=1
参考代码如下：
注意：这里是限定显示第一页，每页 10 条，可以改请求参数拿更多的文件：start=0&limit=10，比如10改为1000等。...
How to copy an object in Objective-C
...stom object that has objects of its own. I've been reading around and am a bit confused as to how to inherit NSCopying and how to use NSCopyObject.
...
How does type Dynamic work and how to use it?
...> d.foo
java.lang.RuntimeException: method not found
scala> d.foo = 10
d.foo: Any = 10
scala> d.foo
res56: Any = 10
The code works as expected - it is possible to add methods at runtime to the code. On the other side, the code isn't typesafe anymore and if a method is called that doesn'...
How to convert image to byte array
...want to have ;-) To get rid of the metadata you might want to create a new Bitmap and pass the Image to it like (new Bitmap(imageIn)).Save(ms, imageIn.RawFormat);.
– Markus Safar
Apr 6 at 22:07
...
A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7
...dateAppStoreReceipt/Chapters/ValidateLocally.html#//apple_ref/doc/uid/TP40010573-CH1-SW17
static int verified = 1;
int result = 0;
OpenSSL_add_all_digests(); // Required for PKCS7_verify to work
X509_STORE *store = X509_STORE_new();
if (store)
{
const uint8_t *certifi...
C# Lazy Loaded Automatic Properties
...6 called Expression Bodied Auto-Properties, which allows you to write it a bit cleaner:
public class SomeClass
{
private Lazy<string> _someVariable = new Lazy<string>(SomeClass.IOnlyWantToCallYouOnce);
public string SomeVariable
{
get { return _someVariable.Value; }
...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...ified in CMD.
– ron_g
Jul 31 '19 at 10:14
2
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Combine Date and Time columns using python pandas
...Pandas <3
– 5agado
Apr 19 '17 at 10:16
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