大约有 45,000 项符合查询结果(耗时:0.0767秒) [XML]
What is the difference between const_iterator and non-const iterator in the C++ STL?
What is the difference between a const_iterator and an iterator and where would you use one over the other?
7 Answers
...
How to retrieve an element from a set without removing it?
...pop(), since iteration seems to sort the elements. I would prefer them in random order...
– Daren Thomas
Sep 12 '08 at 20:17
10
...
Cutting the videos based on start and end time using ffmpeg
I tried to cut the video using the start and end time of the video by using the following command
9 Answers
...
SQL is null and = null [duplicate]
...
In SQL, a comparison between a null value and any other value (including another null) using a comparison operator (eg =, !=, <, etc) will result in a null, which is considered as false for the purposes of a where clause (strictly speaking, it's "not true", rather...
Merging two arrays in .NET
Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array?
21 Answers
...
How to check for the type of a template parameter?
Suppose I have a template function and two classes
4 Answers
4
...
How can I get all constants of a type by reflection?
...;
FieldInfo[] fieldInfos = type.GetFields(
// Gets all public and static fields
BindingFlags.Public | BindingFlags.Static |
// This tells it to get the fields from all base types as well
BindingFlags.FlattenHierarchy);
// Go through the list and only pick...
Convert Iterator to ArrayList
...tor to ArrayList<Element> (or List<Element> ) in the best and fastest way possible, so that we can use ArrayList 's operations on it such as get(index) , add(element) , etc.
...
Most efficient way to cast List to List
... be declared as taking a List<? extends BaseClass>.
But if it isn't and you can't change it, you can wrap the list with Collections.unmodifiableList(...), which allows returning a List of a supertype of the argument's parameter. (It avoids the typesafety problem by throwing UnsupportedOperati...
WPF - How to force a Command to re-evaluate 'CanExecute' via its CommandBindings
I have a Menu where each MenuItem in the hierarchy has its Command property set to a RoutedCommand I've defined. The associated CommandBinding provides a callback for the evaluation of CanExecute which controls the enabled state of each MenuItem .
...
