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Is std::vector so much slower than plain arrays?
...d::vector<Pixel> pixels(dimensions * dimensions, Pixel(255,0,0));
Now doing the same timing again:
g++ -O3 Time.cpp -I <MyBoost>
./a.out
UseVector completed in 2.216 seconds
The vector now performance only slightly worse than the array. IMO this difference is insignificant...
Java Programming - Where should SQL statements be stored? [closed]
...tch from DB server without the need to change your model (but ask yourself now: how often would a company switch from DB server? likely at least only once per 3 years, isn't it?).
I won't call stored procedures a "good" solution for this. They have an entirely different purpose. Even though, your c...
Hidden features of Eclipse [closed]
...y = new |
and then I pushed Ctrl-Space to complete the constructor call. Now I type:
new Display()|
and press Ctrl-2 L, which results in:
Display display = new Display()|
This really speeds things up. (Ctrl-2 F does the same, but assigns to a new field rather than a new variable.)
Another g...
What is the difference between include and extend in Ruby?
...class (i.e. the singleton class)
e.g.
if you call Klazz.extend(Mod), now Klazz has Mod's methods (as class methods)
if you call obj.extend(Mod), now obj has Mod's methods (as instance methods), but no other instance of of obj.class has those methods added.
extend is a public method
include -...
How does the Brainfuck Hello World actually work?
...memory looks like:
...[0][0][*97*][0][0]...
If you use dot (.) operator now, what BF does is print:
a
Because a decimal code in ASCII is 97.
So for example BF program like this (97 pluses 2 dots):
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++...
Disable Interpolation when Scaling a
... interpolation when scaling elements?
The answer is maybe some day. For now, you'll have to resort to hack-arounds to get what you want.
image-rendering
The working draft of CSS3 outlines a new property, image-rendering that should do what I want:
The image-rendering property provides a h...
explicit casting from super class to subclass
... you're essentially telling the compiler "trust me. I'm a professional, I know what I'm doing and I know that although you can't guarantee it, I'm telling you that this animal variable is definitely going to be a dog."
Since the animal isn't actually a dog (it's an animal, you could do Animal anima...
Editing screenshots in iTunes Connect after iOS app was approved
...
Apple support now got back with the (somehow not too satisfactory) answer:
If your app is currently for sale on
the App Store, you will need to submit
an update in order to change your app
screenshots.
If you have any furthe...
When restoring a backup, how do I disconnect all active connections?
...nd select 'Activity Monitor'.
When this opens, expand the Processes group.
Now use the drop-down to filter the results by database name.
Kill off the server connections by selecting the right-click 'Kill Process' option.
sh...
Can you build dynamic libraries for iOS and load them at runtime?
...
Anybody know why that is? To me it just seems completely insane.
– Erik de Castro Lopo
Apr 29 '11 at 3:24
74
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