大约有 45,000 项符合查询结果（耗时：0.0474秒） [XML]
Example for boost shared_mutex (multiple reads/one write)?
... has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updating thread could wait for the o...
Rspec doesn't see my model Class. uninitialized constant error
... versions of RSpec move some stuff out of the spec/spec_helper.rb file, so now you also get a spec/rails_helper.rb file. If you run rails generate rspec:install, this is what it produces (rspec-rails 3.0.1, rails 4.1.1). Turns out the rails_helper.rb file contains some similar code to yours and shou...
__FILE__, __LINE__, and __FUNCTION__ usage in C++
...
__func__ is now in C++11 standard.
– V-X
Sep 25 '13 at 8:09
...
Why can't I overload constructors in PHP?
...being able to overload my constructors in PHP, so what I'd really like to know is why .
14 Answers
...
What does functools.wraps do?
...attribute calls over to the function that is being decorated. So, you can now create a simple decorator that checks that 2 arguments are specified like so:
class process_login(DecBase):
def __call__(self, *args):
if len(args) != 2:
raise Exception("You can only specify two ...
When to use self over $this?
...I did get some more information that I found helpful further down, but for now I was just trying to figure out why I hit my class attributes with $this->attrib and the class constants with self::constant. This helped me understand that better
– MydKnight
Jul...
Remove last item from array
...e(-1): </b>
<div id="div2"></div>
Explanation:-
Now the basic syntax of Array.prototype.slice() or in short slice() method is:
arr.slice([begin[, end]])
Here,
the begin parameter is zero-based index at which extraction from an array starts. So, lets say based on above...
Python __call__ special method practical example
I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
Python Process Pool non-daemonic?
...to custom can raise error: AssertionError: group argument must be None for now.
Here I found a solution that can help:
class NoDaemonProcess(multiprocessing.Process):
# make 'daemon' attribute always return False
@property
def daemon(self):
return False
@daemon.setter
...
Static files in Flask - robot.txt, sitemap.xml (mod_wsgi)
...
Heads up - there's an easier way to handle this now. Check my reply.
– Sean McSomething
Jan 17 '13 at 23:00
1
...