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When is a C++ destructor called?
...mart pointers will destroy the old object, or will destroy it if it has no more references. Ordinary pointers have no such smarts. They just hold an address and allow you to perform operations on the objects they point to by specifically doing so.
2) Following up on question 1, what defines when...
Why is exception.printStackTrace() considered bad practice?
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Search an Oracle database for tables with specific column names?
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Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP
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Why does Go have a “goto” statement
...ans 22 lines within a single function. (And Thomas Ahle's proposal is even more readable to my eye.)
– joel.neely
Jun 28 '16 at 11:14
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Connection timeout for SQL server
..., the timeout value for the connection is the default value (15 seconds).
Moreover, setting the timeout value to 0, you are specifying that your attempt to connect waits an infinite time. As described in the documentation, this is something that you shouldn't set in your connection string:
A va...
sqlite database default time value 'now'
...lect * From Demo; -- display raw audit values
idDemo DemoValue DatTimIns DatTimUpd
------ --------- ---------- ----------
1 One Upd 1560024902 1560024944
2 Two 1560024944
3 Thr 1560024944
Select * From vewDemo;...
C++, Free-Store vs Heap
...You have to build any structures yourself. The Free Store (new/delete) is more like a 'finished goods' supplier. You ask for an object and it gets allocated some space, and the object it built up and prepared for your use. When it is finished with it gets nicely cleaned up.
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Select by partial string from a pandas DataFrame
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What is the most ridiculous pessimization you've seen? [closed]
... @RazorStorm On later machines where bandwidth and cache are more precious, the opposite would be true. The bitmask/shift is cheap, but you want to fit as much in cache as possible and also minimize bandwidth.
– Jed
Jul 22 '13 at 18:02
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