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How do I find where an exception was thrown in C++?
... separate error handling and reporting code from ordinary code. The catch block can be, and often is, located in a different function/method than the point of throwing. It has also been pointed out to me in the comments (thanks Dan) that it is implementation-defined whether or not the stack is unw...
Why does this iterative list-growing code give IndexError: list assignment index out of range?
...that this can be very confusing for those coming from other languages like PHP or C. j is a type of list, not an array. With list type, I don't think this is subscriptable. Very confusing if coming from other languages.
– Nguai al
Jan 12 '19 at 23:24
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JUnit test for System.out.println()
...a answer is great, so I took it a step farther to make it possible to test blocks of ouput.
First I created TestHelper with a method captureOutput that accepts the annoymous class CaptureTest. The captureOutput method does the work of setting and tearing down the output streams. When the implement...
python multithreading wait till all threads finished
...
The call to join blocks until thread finishes execution. You will have to wait for all of the threads anyway. If t1 finishes first you will start waiting on t2 (which might be finished already and you will immediately proceed to wait for t3)....
How to check if mysql database exists
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* OK, apparently PHPMyAdmin just displays all database names in lower case, and your query works using both anyway
– Hubro
Jun 15 '12 at 13:21
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Convert string to variable name in JavaScript
...ss true. Javascript does not have variable variables (such as $$varname in php) so this really is the only answer. Using window[varname] has the side-effect of introducing global variables, which might not be wanted. @Shaz I don't think you give modern JS interpreters enough credit. They are extreme...
Maximum length of the textual representation of an IPv6 address?
I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER...
When should TaskCompletionSource be used?
...all the benefits of tasks (e.g. return values, continuations, etc) without blocking a thread for the duration of the operation. If your "function" is an I/O bound operation, it isn't recommended to block a thread using a new Task. Instead, using TaskCompletionSource, you can create a slave task to j...
In Perl, how can I read an entire file into a string?
...ily undefs your record separator, and will automatically close the file at block exit. If the file is already open, just use this:
$var = do { local $/; <INPUT> };
For ordinary files you can also use the read function.
read( INPUT, $var, -s INPUT );
The third argument tests the byte size...
warning this call is not awaited, execution of the current method continues
...sync();
// Set up a continuation BEFORE MainWorkOfApplicationIDontWantBlocked
Task anotherTask = task.ContinueWith(r => {
Console.WriteLine(r.Result);
});
MainWorkOfApplicationIDontWantBlocked();
// OR wait for the result AFTER
string result = task.Resul...