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Is std::vector so much slower than plain arrays?
...() to new[] in UseArray so the objects would get constructed. And changing from individual field assignment to assigning a Pixel instance. Oh, and renaming the inner loop variable to j.
void UseArray()
{
TestTimer t("UseArray");
for(int i = 0; i < 1000; ++i)
{
int dimensi...
Custom Python list sorting
... functools cmp_to_key to have old-style comparison functions work though.
from functools import cmp_to_key
def cmp_items(a, b):
if a.foo > b.foo:
return 1
elif a.foo == b.foo:
return 0
else:
return -1
cmp_items_py3 = cmp_to_key(cmp_items)
alist.sort(cmp_ite...
Rails: Open link in new tab (with 'link_to')
...king for how to open a link in a new tab within html (for anyone came here from Google), here:
<a href="http://www.facebook.com/mypage" target="_blank">Link name</a>
share
|
improve th...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...aranteed to be atomic on all .NET platforms.
My colleague is reasoning from false premises. Does that mean that their conclusions are incorrect?
Not necessarily. Your colleague could be giving you good advice for bad reasons. Perhaps there is some other reason why you ought to be using Interlo...
Ideal Ruby project structure
...
See the following example from http://guides.rubygems.org/what-is-a-gem/
% tree freewill
freewill/
├── bin/
│ └── freewill
├── lib/
│ └── freewill.rb
├── test/
│ └── test_f...
How do I animate constraint changes?
...ateWithDuration:5
animations:^{
self._addBannerDistanceFromBottomConstraint.constant = -32;
[self.view layoutIfNeeded]; // Called on parent view
}];
bannerIsVisible = FALSE;
}
- (void)moveBannerOnScreen {
[self.view layoutIfNeeded];
[UIView anim...
shell init issue when click tab, what's wrong with getcwd?
...ly occurs when your current directory does not exist anymore. Most likely, from another terminal you remove that directory (from within a script or whatever). To get rid of this, in case your current directory was recreated in the meantime, just cd to another (existing) directory and then cd back; t...
When to use thread pool in C#? [closed]
... need to make your IO related tasks concurrently such as downloading stuff from remote servers or disk access, but need to do this say once every few minutes, then make your own threads and kill them once you're finished.
Edit: About some considerations, I use thread pools for database access, phys...
How can i get the session object if i have the entity-manager
...at the result of this method is implementation specific i.e. non portable from application server using Hibernate to the other. For example with JBoss you would do:
org.hibernate.Session session = (Session) manager.getDelegate();
But with GlassFish, you'd have to do:
org.hibernate.Session sessi...
how to calculate binary search complexity
... the input required to search hence it is log(n) algorithm. Since I am not from a mathematics background I am not able to relate to it. Can somebody explain it in a little more detail? does it have to do something with the logarithmic series?
...