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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
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64
GCC has:
-- Built-in Function: int __builtin_clz (unsigned int x)
Returns the number of ...
When should the volatile keyword be used in C#?
... ecx,eax
00401012 add eax,edx
00401014 cmp eax,64h
00401017 jl main+10h (401010h)
}
for (volatile int i = 0 ; i < 100 ; ++i)
00401019 mov dword ptr [esp],0
00401020 mov eax,dword ptr [esp]
00401023 cmp eax,64h
00401026 jge...
What is the closest thing Windows has to fork()?
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Evan TeranEvan Teran
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来自微软的一手内幕：Windows 10是怎么出炉的 - 创意 - 清泛网 - 专注C/C++及内核技术
...它们整合到一起。不过这不意味着亦可以直接通过Xbox One下载各种应用程序。“想要在一个商店里就享受到所有的内容的话，可能还得再等等。”Spencer说，明年Windows 10的应用可以在Xbox One上运行的时候我们就等到头了。
另外...
The name 'model' does not exist in current context in MVC3
...ystem.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
<pages pageBaseType="System.Web.Mvc.WebViewPage">
<namespaces>
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespac...
Do try/catch blocks hurt performance when exceptions are not thrown?
... {0} - No Try/Catch"
IL_0006: ldc.r8 1.
IL_000f: call float64 [mscorlib]System.Math::Sin(float64)
IL_0014: box [mscorlib]System.Double
IL_0019: call void [mscorlib]System.Console::WriteLine(string,
obj...
How to get root access on Android emulator?
...oel G Mathew
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answered Jun 10 '17 at 12:40
xavier_fakeratxavier_fakerat
1...
How to format a number as percentage in R?
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# [1] "0.00%" "0.01%" "0.04%" "0.09%" "0.16%" "0.25%" "0.36%" "0.49%" "0.64%"
# [10] "0.81%" "1.00%"
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A fast method to round a double to a 32-bit int explained
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For those who'd like to convert to int64_t you can do that by shifting the mantissa left and then right by 13 bits. This will clear the exponent and the two bits from the 'magic' number, but will keep and propagate the sign to the entire 64-bit signed integer. un...
C/C++ maximum stack size of program
...hange at run time also.
For reference, some defaults are:
glibc i386, x86_64: 7.4 MB
Tru64 5.1: 5.2 MB
Cygwin: 1.8 MB
Solaris 7..10: 1 MB
MacOS X 10.5: 460 KB
AIX 5: 98 KB
OpenBSD 4.0: 64 KB
HP-UX 11: 16 KB
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