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Why are these constructs using pre and post-increment undefined behavior?
... can't predict the behavior when the code is run.
As far as I know, the standard doesn't explicitly say why the concept of undefined behavior exists. In my mind, it's simply because the language designers wanted there to be some leeway in the semantics, instead of i.e. requiring that all implementa...
Prompt for user input in PowerShell
... can use:
$pass = Read-Host 'What is your password?' -AsSecureString
To convert the password to plain text:
[Runtime.InteropServices.Marshal]::PtrToStringAuto(
[Runtime.InteropServices.Marshal]::SecureStringToBSTR($pass))
As for the type returned by $host.UI.Prompt(), if you run the code a...
Is 0 a decimal literal or an octal literal?
...act can hurt you.
I realized this when I was trying to write a program to convert binary numbers to decimal and hexidecimal output. Everytime that I was giving a number starting with zero I was getting the wrong output (For example, 012 = 10, not 12).
It's good to know this information so you don'...
How many socket connections can a web server handle?
... virtual or dedicated hosting, I read somewhere a server/machine can only handle 64,000 TCP connections at one time, is this true? How many could any type of hosting handle regardless of bandwidth? I'm assuming HTTP works over TCP.
...
Linq to Entities join vs groupjoin
...eused in the above statement. Doing this, any join statement can simply be converted to an outer join by adding the equivalent of into g from c in g.DefaultIfEmpty() to an existing join statement.
This is where query (or comprehensive) syntax shines. Method (or fluent) syntax shows what really happe...
Why does the MongoDB Java driver use a random number generator in a conditional?
...he following code in this commit for MongoDB's Java Connection driver , and it appears at first to be a joke of some sort. What does the following code do?
...
To underscore or to not to underscore, that is the question
...nguages? For example since C# is case-sensitive you can call a field "foo" and the public property "Foo" and it works fine.
...
Remove non-ascii character in string
...... invalid characters (be it %80, \uFFFF or unexplained whitespaces) when converting to base64, this is a working solution
– B. León
Jun 30 at 2:38
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Use numpy array in shared memory for multiprocessing
...he multiprocessing module. The difficulty is using it like a numpy array, and not just as a ctypes array.
5 Answers
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Create a Date with a set timezone without using a string representation
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I believe you need the createDateAsUTC function (please compare with convertDateToUTC)
function createDateAsUTC(date) {
return new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds()));
}
function convertDateToUTC(date)...