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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...lt; N), finding the position (N) of the highest set bit is the integer log base 2 of that integer.
http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogObvious
unsigned int v;
unsigned r = 0;
while (v >>= 1) {
r++;
}
This "obvious" algorithm may not be transparent to everyone...
How to find the Windows version from the PowerShell command line
...tation
OS Build Type : Multiprocessor Free
System Type : x64-based PC
System Locale : ru;Russian
Hotfix(s) : 274 Hotfix(s) Installed.,[01]: KB2849697,[02]: KB2849697,[03]:...
Windows 10 output for the same command:
OS Name : Microsoft Windows 10 Enterpris...
Python Image Library fails with message “decoder JPEG not available” - PIL
...f that doesn't work, try one of the below, depending on whether you are on 64bit or 32bit Ubuntu.
For Ubuntu x64:
sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libfreetype.so /usr/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libz.so /usr/lib
Or for Ubu...
Can someone explain how to implement the jQuery File Upload plugin?
...h does not have any dependencies.
The author has also created a bootstrap demo which was inspired by the jQuery File Upload plugin.
I hope this saves someone else some time.
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Converting JavaScript object with numeric keys into array
...;
for (var prop in data) {
arr.push(data[prop]);
}
console.log(arr);
DEMO
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How do I provide custom cast support for my class?
..., why, the compiler only looks for implicit/explicit casts at compile time based upon their compiled type. In this case the compiler sees name as an object rather than string, and thus doesn't use Role's overloaded operator.
...
How to decide font color in white or black depending on background color?
...e intensities. Each 2 digits of the code represent a value in hexadecimal (base-16) notation. I won't get into the details of the conversion here, they're easy to look up.
Once you have the intensities for the individual colors, you can determine the overall intensity of the color and choose the co...
Windows 7 SDK installation failure
...
Microsoft now has a knowledge base article called Windows SDK Fails to Install with Return Code 5100 that describes this problem and its fix:
This issue occurs when you install the Windows 7 SDK on a computer that has a newer version of the Visual C++...
How do you display JavaScript datetime in 12 hour AM/PM format?
... 1st and 3rd groups.
WARNING: toLocaleTimeString() may behave differently based on region / location.
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【解决】模拟器启动失败：ERROR: x86_64 emulation currently requires har...
... code 8
handle puAcceleration: feature check for hvf emulator: ERROR: x86_64 emulation currently requires
hardware acceleration!
CPU acceleration status: Hill is not installed on this machine
解决方法：
安装硬件加速器，路径：
....\resources\app.asar.unpacked\Emulator\from-Andr...