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Declaring variables inside loops, good practice or bad practice?
...hat is ultimately for the compiler to decide, based on what's best for the platform, optimization levels, etc. An ordinary int/float inside a loop will usually be placed on the stack. A compiler can certainly move that outside of the loop and reuse the storage if there is an optimization in doing th...
What is the difference between ELF files and bin files?
... file formats are supported. Assuming gnu on a number of host development platforms the elf file format is the default output and then you use tools as needed (if the target specific utilities/loaders) to extract or convert from elf to something else.
– old_timer
...
What is the difference between a string and a byte string?
....
Unicode provides a unique number for every character, no matter what the platform, no matter what the program, no matter what the language.
So when a computer represents a string, it finds characters stored in the computer of the string through their unique Unicode number and these figures are st...
Traits in PHP – any real world examples/best practices? [closed]
... solve a common issue when developing extensions for the Magento ecommerce platform. The problem occurs when extensions add functionality to a core class (like say the User model) by extending it. This is done by pointing the Zend autoloader (via a XML config file) to use the User model from the ext...
What is the difference between min SDK version/target SDK version vs. compile SDK version?
...ll get java.lang.RuntimeException
compileSdkVersion - actually it is SDK Platform version and tells Gradle which Android SDK use to compile. When you want to use new features or debug .java files from Android SDK you should take care of compileSdkVersion. One more example is using AndroidX that fo...
Structure padding and packing
...ies - say, int members would have offsets, which are mod(4) == 0 on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
char c;
char...
How to get StackPanel's children to fill maximum space downward?
...StackPanel>
</DockPanel>
</DockPanel>
If you are on a platform without DockPanel available (e.g. WindowsStore), you can create the same effect with a grid. Here's the above example accomplished using grids instead:
<Grid Width="200" Height="200" Background="PowderBlue">
...
Best approach to real time http streaming to HTML5 video client
...f the file them seek to whatever point you wish.
Now let's dig in a bit.
Platforms:
iOS
PC
Mac
Android
Codecs:
vp8/9
h.264
thora (vp3)
Common Delivery methods for live video in browsers:
DASH (HTTP)
HLS (HTTP)
flash (RTMP)
flash (HDS)
Common Delivery methods for VOD in browsers:
DASH...
What are best practices that you use when writing Objective-C and Cocoa? [closed]
...garian notation. Even Microsoft gave up on that with the move to the .NET platform.
share
edited Aug 25 '10 at 18:27
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How can the Euclidean distance be calculated with NumPy?
...+
((pointA.z - pointB.z) ** 2)
) ** 0.5 # fast sqrt
On some platforms, **0.5 is faster than math.sqrt. Your mileage may vary.
**** Advanced performance notes.
Why are you calculating distance? If the sole purpose is to display it,
print("The target is %.2fm away" % (distance(a, b)...