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How does one make random number between range for arc4random_uniform()?
...means of converting to a common integer type. In this example I'm using Int64 which is large enough for my purposes, but if you're using unsigned integers or have an Int128 or Int256 custom type you should use those.
public func randomNumber<T : SignedInteger>(inRange range: ClosedRange<T&...
what's the correct way to send a file from REST web service to client?
...
I don't recommend encoding binary data in base64 and wrapping it in JSON. It will just needlessly increase the size of the response and slow things down.
Simply serve your file data using GET and application/octect-streamusing one of the factory methods of javax.ws.rs.c...
biggest integer that can be stored in a double
...is, DBL_MAX or approximately 1.8 × 10308 (if your double is an IEEE 754 64-bit double). It's an integer. It's represented exactly. What more do you want?
Go on, ask me what the largest integer is, such that it and all smaller integers can be stored in IEEE 64-bit doubles without losing precision...
Types in MySQL: BigInt(20) vs Int(20)
... in their respective number of bytes. That means 232 values in an INT and 264 values in a BIGINT.
The 20 in INT(20) and BIGINT(20) means almost nothing. It's a hint for display width. It has nothing to do with storage, nor the range of values that column will accept.
Practically, it affects onl...
How do I install cURL on cygwin?
... this file.so i downloaded this file (or you can do a wget).I am on windows64 bit.So ,if you go to https://cygwin.com/install.html ,you can download setup-x86_64.exe file from the install and updates section,move this setup-x86_64.exe to your c:/cygwin64,and then run it from there ( setup-x86_64.e...
Can't install nuget package because of “Failed to initialize the PowerShell host”
...pplied according to the bit version of the PowerShell console, so 32bit or 64 bit. So if you want to install a package in Visual Studio (32 bit version) which requires a specific policy you should change settings of the policy via PowerShell (x86).
The command in PowerShell (as administrator) to se...
ImportError in importing from sklearn: cannot import name check_build
...
My solution for Python 3.6.5 64-bit Windows 10:
pip uninstall sklearn
pip uninstall scikit-learn
pip install sklearn
No need to restart command-line but you can do this if you want.
It took me one day to fix this bug. Hope this help.
...
Linux环境离线安装docker&docker-compose - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...客
可以选择对应平台的版本进行下载，此文档以x86_64平台的v26.1.4版本为准，获取版本离线包如下所示：
百度网盘获取docker、docker-compose版本详细信息如下所示：
2、安装docker
# 将下载后的docker安装包传至需要...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
... Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
return Convert.ToBase64String(dst);
}
Verifying:
public static bool VerifyHashedPassword(string hashedPassword, string password)
{
byte[] buffer4;
if (hashedPassword == null)
{
return false;
}
if (password == null)
...
Why doesn't .NET/C# optimize for tail-call recursion?
...ate given recent JIT changes). Note that the CLR changes for 4.0 the x86, x64 and ia64 will respect it.
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