boxing

相关标签：javascript jquery android 多少钱 iPhone

Is there any difference between using .GetValueOrDefault(0) and If(variable, 0) with nullable types?

Is there any difference between the 2 methods bel开发者_如何学运维ow for calculating c ... specifically boxing/unboxing issues?[详细]

2022-12-22 19:49 分类：问答
Does the VB.NET "If" operator cause boxing?

Those of us who\'ve worked in VB/VB.NET have seen code similar to this abomination: Dim name As String = IIf(obj Is Nothing, \"\", obj.Name)[详细]

2022-12-22 14:45 分类：问答
What Performs Worse: Reflection or Boxing?

I\'m working on creating my own DI framework that creates delegate factories as a learning exercise.My way of building typed delegates is to use expressions to create a function that calls a static me[详细]

2022-12-20 05:06 分类：问答
Java: Are there some quasi-standard APIs out there, which do int[] <-> Integer[] and similar?

I need to do lots of conversions between primitivetype[] and boxedtype[] (both directions). Such as: Integer[] <-> int[], Double[] <-> double[], ...[详细]

2022-12-19 21:00 分类：问答
Does boxing create garbage in .NET?

I\'m wondering whether boxing a value type in an object is a special case or whether the \"box\" constructed by .NET becomes garbage (that the GC has to collect) after any references to it are dropped[详细]

2022-12-19 09:32 分类：问答
Store int32_t in an NSDictionary

How can I store开发者_如何学JAVA a variable of type int32_t (e.g. for ABPropertyID) in an NSDictionary?[详细]

2022-12-17 23:42 分类：问答
Why do we need boxing and unboxing in C#?

Why do we need boxing and unboxing in C#? I know what boxing and unboxing is, but I can\'t comprehend the real use of it. Why and where should I use it?[详细]

2022-12-17 07:17 分类：问答
Boxing and unboxing: when does it come up?

So I understand what boxing and unboxing is. 开发者_运维问答When\'s it come up in real-world code, or in what examples is it an issue? I can\'t imagine doing something like this example:[详细]

2022-12-14 12:43 分类：问答
Internal compiler error ArrayIndexOutOfBoundsException: -1 ... generateUnboxingConversion

I got some weird exception when trying to compile this: Byte b = 2; if (b < new Integer(5)) { ... } Is it开发者_如何学C a valid check (unboxing-implicit cast - unboxing)?If there is a bug in you[详细]

2022-12-14 01:13 分类：问答
How to prevent unboxing - boxing memory overhead when reading arbitrary sql rows

I\'m writing a class to represent a row from a SQL query. I want the field data to be accessed via the indexer property of the class. This is straightforw开发者_如何学Goard enough if I load the data i[详细]

2022-12-13 16:30 分类：问答