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When do we have to use copy constructors?
...st to be destroyed copy sharing the buffer will call delete[] successfully and the second will run into undefined behavior. You need deep copying copy constructor (and assignment operator as well).
Class::Class( const Class& another )
{
stored = new char[strlen(another.stored) + 1];
str...
What exactly is nullptr?
We now have C++11 with many new features. An interesting and confusing one (at least for me) is the new nullptr .
14 Answe...
When to use std::begin and std::end instead of container specific versions [duplicate]
...references or rules that explain when container specific versions of begin and end should be used instead of free functions std::begin and std::end ?
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What are the disadvantages of using persistent connection in PDO
...rrent FastCGI process if you're using FastCGI, etc), not at the PHP level, and PHP doesn't tell the parent process to let the connection die when the script terminates abnormally.
If the dead script locked tables, those tables will remain locked until the connection dies or the next script that get...
The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat
What is this error all about, and how would I go about solving it?
14 Answers
14
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Hibernate, @SequenceGenerator and allocationSize
...nce by one , multiple this value by 50 (default allocationSize value) - and then uses this value as entity ID.
6 Answers...
JPG vs. JPEG image formats
I often use JPEG images, and I have noticed that there are two very similar file extensions: .jpg , which my mobile's camera and the Preview application use, and .jpeg , with which Image Capture saves the images from scanning with my Canon MX455 printer. LaTeX doesn't seem to distinguish...
AppStore - App status is ready for sale, but not in app store
... guess it messes up with the dates. Looks like sometimes if you do nothing and just follow the instructions, the app will never go live.
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Can you test google analytics on a localhost address?
..., however the technology has changed. The old Urchin tracker is deprecated and obsolete. The new asynchronous Google Analytics tracking code uses slightly different code to achieve the same results.
Google Analytics Classic - Asynchronous Syntax - ga.js
The current syntax for setting the tracking do...
Listing and deleting Git commits that are under no branch (dangling?)
...up by git gc.
Expiry is regulated by the gc.pruneexpire, gc.reflogexpire, and gc.reflogexpireunreachable settings. Cf. git help config.
The defaults are all quite reasonable.
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