大约有 45,778 项符合查询结果(耗时:0.0404秒) [XML]
How is the fork/join framework better than a thread pool?
What are the benefits of using the new fork/join framework over just simply splitting the big task into N subtasks in the beginning, sending them to a cached thread pool (from Executors ) and waiting for each task to complete? I fail to see how using the fork/join abstraction simplifies the prob...
public friend swap member function
...ful answer to the copy-and-swap-idiom there is a piece of code I need a bit of help:
2 Answers
...
what is reverse() in Django
...ead django code sometimes, I see in some templates reverse() . I am not quite sure what this is but it is used together with HttpResponseRedirect. How and when is this reverse() supposed to be used?
...
Is it possible to implement a Python for range loop without an iterator variable?
Is it possible to do following without the i ?
14 Answers
14
...
Difference between timestamps with/without time zone in PostgreSQL
... timestamp values stored differently in PostgreSQL when the data type is WITH TIME ZONE versus WITHOUT TIME ZONE ? Can the differences be illustrated with simple test cases?
...
MySQL: multiple tables or one table with many columns?
...time information is one-to-one (each user has one name and password), then it's probably better to have it one table, since it reduces the number of joins the database will need to do to retrieve results. I think some databases have a limit on the number of columns per table, but I wouldn't worry ab...
Is the sizeof(some pointer) always equal to four?
...int *) == sizeof(double *).
In practice, pointers will be size 2 on a 16-bit system (if you can find one), 4 on a 32-bit system, and 8 on a 64-bit system, but there's nothing to be gained in relying on a given size.
share
...
Performance difference for control structures 'for' and 'foreach' in C#
... code snippet will give better performance? The below code segments were written in C#.
9 Answers
...
Change private static final field using Java reflection
I have a class with a private static final field that, unfortunately, I need to change it at run-time.
11 Answers
...
Using HTML5/JavaScript to generate and save a file
I've been fiddling with WebGL lately, and have gotten a Collada reader working. Problem is it's pretty slow (Collada is a very verbose format), so I'm going to start converting files to a easier to use format (probably JSON). I already have the code to parse the file in JavaScript, so I may as well ...
