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How does the new automatic reference counting mechanism work?
...bjects on different lines? Those statements even tell you on what line you allocated the object. This has been taken a step further and now can insert retain/release statements at the proper locations, better than most programmers, almost 100% of the time. Occasionally there are some weird instances...
How to return smart pointers (shared_ptr), by reference or by value?
... N strings in the vector, each copy
could require as many as N+1 memory allocations and a whole slew of cache-unfriendly data accesses > as the string contents are copied.
Rather than confront that sort of anxiety, I’ve often fallen back on pass-by-reference to avoid
needless copies:
...
Using {} in a case statement. Why?
...l switch cases.
Micro optimizations- scope for a really expensive resource allocated variable that you want to destruct as soon as you leave the scope of the case, or even a more spaghetti scenario of the "GOTO" command usage.
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Is inline assembly language slower than native C++ code?
...e-program optimization and inter-procedural optimization such
as register allocation, constant propagation, common subexpression elimination, instruction scheduling and other complex, not obvious optimizations (Polytope model, for example). On RISC architecture guys stopped worrying about this many...
Comet and jQuery [closed]
... module and includes code for simple publisher/subscriber roles in jQuery, PHP, and Bash.
http://blog.jamieisaacs.com/2010/08/27/comet-with-nginx-and-jquery/
A working example (simple chat) can be found here:
http://cheetah.jamieisaacs.com/
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Do you leave parentheses in or out in Ruby? [closed]
...
I agree. In php for example I can quickly spot a var by the $ prefix.. in javascript I can reconize a function by the parenthesis(). In Ruby the difference between a var or func (without parenthesis) is not always easy to see.
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Disable dragging an image from an HTML page
...ento so my div like : <div class="product-img-box"> <?php echo $this->getChildHtml('media') ?> </div> How can i restrict right click and no draggable my image div. @dmo
– Gem
Jan 22 '19 at 5:55
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How to get whole and decimal part of a number?
...ng point number arithmetic. See here: stackoverflow.com/questions/3726721/php-math-precision
– Matt James
Sep 12 '14 at 18:56
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How can I decompress a gzip stream with zlib?
...ess that can vary according to data entropy. Is there a way to dynamically allocate more space to output buffer when needed ? Thanks
– Zohar81
Jan 22 '19 at 12:33
add a commen...
Scala actors: receive vs react
...ead until it receives something. Once it receives something, a thread gets allocated to it, and it is initialized in it.
Now, the initialization part is important. A receiving thread is expected to return something, a reacting thread is not. So the previous stack state at the end of the last react ...