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Are C++ enums signed or unsigned?

...operands using the < operator, we are actually talking about implicitly converting the enum type to some integral type. It is the sign of this integral type that matters. And when converting enum to integral type, this statement applies: 9 The value of an enumerator or an object of an enumeratio...
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javascript toISOString() ignores timezone offset [duplicate]

I am trying to convert Twitter datetime to a local iso-string (for prettyDate) now for 2 days. I'm just not getting the local time right.. ...
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How do I query for all dates greater than a certain date in SQL Server?

... select * from dbo.March2010 A where A.Date >= Convert(datetime, '2010-04-01' ) In your query, 2010-4-01 is treated as a mathematical expression, so in essence it read select * from dbo.March2010 A where A.Date >= 2005; (2010 minus 4 minus 1 is 2005 Convertin...
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ValueError: setting an array element with a sequence

...2,3]) #good numpy.array([1, (2,3)]) #Fail, can't convert a tuple into a numpy #array element numpy.mean([5,(6+7)]) #good numpy.mean([5,tuple(range(2))]) #Fail, can't convert a tuple into a numpy ...
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RabbitMQ message size and types

...nt to the queue with two preconditions: The thing you are sending can be converted to and from a bytestring The consumer knows exactly what it is getting and how to convert it to the original object Strings are pretty easy, they have a built in method for converting to and from bytes. If you k...
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Best way to convert IList or IEnumerable to Array

... I feel like reinventing the wheel... public static T[] ConvertToArray<T>(this IEnumerable<T> enumerable) { if (enumerable == null) throw new ArgumentNullException("enumerable"); return enumerable as T[] ?? enumerable.ToArray(); } ...
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Is there any JSON Web Token (JWT) example in C#?

...), typ = "JWT" }; byte[] headerBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(header, Formatting.None)); byte[] payloadBytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(payload, Formatting.None)); //byte[] payloadBytes = Encoding.UTF8.GetBytes(@"{"iss":"...
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Python - 'ascii' codec can't decode byte

... "你好".encode('utf-8') encode converts a unicode object to a string object. But here you have invoked it on a string object (because you don't have the u). So python has to convert the string to a unicode object first. So it does the equivalent of "你...
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Adding n hours to a date in Java?

... .plusHours( 8 ) Or… myJavaUtilDate.toInstant() // Convert from legacy class to modern class, an `Instant`, a point on the timeline in UTC with resolution of nanoseconds. .plus( // Do the math, adding a span of time to our moment, our `Insta...
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How can I check a C# variable is an empty string “” or null? [duplicate]

... Cheap trick: Convert.ToString((object)stringVar) == “” This works because Convert.ToString(object) returns an empty string if object is null. Convert.ToString(string) returns null if string is null. (Or, if you're using .NET 2.0 y...