C++ has long double, but there is no guarantee that it’s any more precise than a plain double. On an x86 platform, usually double is 64 bits, and long double is either 64 or 80 bits (which gives you 19 significant figures, if I remember right). Your mileage may vary, especially if you’re not on … Read more
Haskell has immutable variables (variables in the math sense) by default: foo x y = x + y * 2 By default variables are not mutable cells. Haskell also has mutable cells though, but you enable them explicitly: > import Data.IORef (newIORef, readIORef, writeIORef) > v <- newIORef 0 > readIORef v 0 > writeIORef … Read more
It looks like you want the return keyword def check_ping(): hostname = “taylor” response = os.system(“ping -c 1 ” + hostname) # and then check the response… if response == 0: pingstatus = “Network Active” else: pingstatus = “Network Error” return pingstatus You need to capture/’receive’ the return value of the function(pingstatus) in a variable … Read more
You need to use a nullable bool: bool? b = null;
Bash doesn’t have types in the same way as Python (although I would say that Python has classes rather than types). But bash variables do have attributes that are given (mostly) through declare, but the range of attributes is fairly small. You can find an attribute using declare -p, for example, declare -i creates an … Read more
No. MySQL does not support CREATE DOMAIN or CREATE TYPE as, for example, PostgreSQL does. You’ll probably have to enter all the names again. You can mitigate the work it takes to do this by using copy & paste, or SQL scripts. You could also use the INFORMATION_SCHEMA tables to get the text of the … Read more
#if($hideMyControl) // your code #end If $hideMyControl is defined, your code will execute
You could update the OutputName of your .wixproj and use an MSBuild variable to pass through the version number or any other variable you like. My build script looks like this: set PRODUCTVERSION=7.1.0.1 MSBuild.exe /p:Configuration=Debug /p:ProductVersion=%PRODUCTVERSION% Installer.wixproj And my WiX project looks like this: <?xml version=”1.0″ encoding=”utf-8″?> <Project ToolsVersion=”4.0″ DefaultTargets=”Build” xmlns=”http://schemas.microsoft.com/developer/msbuild/2003″> <PropertyGroup> <Configuration Condition=” ‘$(Configuration)’ … Read more
Yes! $scope variables bind to the view where as var does not and is local to the function it was declared in! var x = 3; $scope.y = 3; {{x}} – undefined {{y}} – 3