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Why use static_cast(x) instead of (int)x?
... of the object, casting that address to a pointer to a different type, and then dereferencing. Except in the case of character types or certain struct types for which C defines the behavior of this construct, it generally results in undefined behavior in C.
– R.. GitHub STOP HE...
Hibernate openSession() vs getCurrentSession()
... related. If you set hibernate.current_session_context_class to thread and then implement something like a servlet filter that opens the session - then you can access that session anywhere else by using the SessionFactory.getCurrentSession().
SessionFactory.openSession() always opens a new session ...
CSS selector for a checked radio button's label
...ay that you could accomplish it:
:checked + span { font-weight: bold; }
Then just wrap the text with a <span>:
<label>
<input type="radio" name="test" />
<span>Radio number one</span>
</label>
See it on JSFiddle.
...
Why do you not use C for your web apps?
...ight API call is a challenge on its own. The time wasted to find this (and then to find how badly the native API call is implemented), the time to learn by hart it for the next time you need it, all this time is depriving you from the time necessary to resolve your application problems.
I have read...
How do I delete an exported environment variable?
... grep VARIABLE, it's lighter as it doesn't need to print all variables and then send its output to another (grep) process. Plus, env | VARIABLE could catch more than one variable that matches the same pattern. Plus2, echo $VARIABLE makes possible to complete variable's name by hitting <Tab> (i...
Why does Internet Explorer not send HTTP post body on Ajax call after failure?
...de in rapid succession. For example, we make Ajax requests every 100ms and then the network status changes, the error is easy to reproduce. Although most applications probably do not make such requests, you might well have a couple of server calls happening right after each other which could lead to...
Argparse: Way to include default values in '--help'?
...on about the default value to.
The exact output for your scan-time option then becomes:
--scan-time [SCAN_TIME]
Wait SCAN-TIME seconds between status checks.
(default: 5)
...
Regular expression matching a multiline block of text
... means "just before a newline", but it does not match the newline itself).
Then (.+?)\n\n means "match as few characters as possible (all characters are allowed) until you reach two newlines". The result (without the newlines) is put in the first group.
[A-Z]+\n means "match as many upper case lett...
Better way of getting time in milliseconds in javascript?
...n method that calls a function (getTime) that finally retrieves the value. Then the object is abandoned to its destiny, and after 1000 iterations of the loop you have 1000 deleted Date objects requiring garbage collection hanging there that suddenly get all dumped together, and while your computer l...
Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
...lls per second: 2053775
For the worker thread, I started up a thread, then used a lockless queue to send requests to another thread and then wait for a "It's done" reply to be sent back.
The "Do nothing" is just to test the overhead of the test harness.
It's clear that the overhead of launchi...