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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...like GC - but it works only for ressources the GC "understands". E.g. the .NET GC does not know the cost of COM objects. When simply creating and destroying them in a loop, it will happily let the application run into the ground regarding address space or virtual memory - whatever comes first - with...
Get path of executable
...In this case using the predefined OS macros detailed at predef.sourceforge.net/preos.html to select the method is straightforward.
– Clifford
Oct 7 '09 at 15:02
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Is Haxe worth learning? [closed]
... have to deal with changes in the environment or targets (you develop for .NET but an important customer requires PHP, or maybe that widget should be in Flash not Javascript), and this is the best case scenario. In the worst case you'll have to switch constantly, often multiple times in the same bus...
Approximate cost to access various caches and main memory?
... 1K bytes with Zippy PROCESS
20,000 ns - Send 2K bytes over 1 Gbps NETWORK
250,000 ns - Read 1 MB sequentially from MEMORY
500,000 ns - Round trip within a same DataCenter
10,000,000 ns - DISK seek
10,000,000 ns - Read 1 MB sequentially from NETWORK
30,000,000 ns - ...
What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
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The Select produces a WhereSelectEnumerableIterator. This is an internal .Net class that implements IEnumerable, not IQueryable. So a conversion to another type has taken place and the subsequent AsQueryable can never return the original source anymore.
The implication of this is that using AsQuery...
How do JavaScript closures work?
...ues makes it more difficult to understand. Here is the true story jsfiddle.net/rjdx34k0/3
– Hugolpz
Sep 2 at 19:13
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Grouping functions (tapply, by, aggregate) and the *apply family
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From slide 21 of http://www.slideshare.net/hadley/plyr-one-data-analytic-strategy:
(Hopefully it's clear that apply corresponds to @Hadley's aaply and aggregate corresponds to @Hadley's ddply etc. Slide 20 of the same slideshare will clarify if you don't get it...
Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
...my animation comprehension, and that I like parenthetical statements)
The net effect is that left slides off the screen, middle slides to the original position and size of left, and right translates in right behind middle.
showLeft() simply reverses the process, with the same mix of animators, jus...
What do 'statically linked' and 'dynamically linked' mean?
...thout you seeing their source code (such as libraries for database access, network communications and graphical user interfaces), or for compiling code in different languages (C and assembly code for example) and then linking them all together.
When you statically link a file into an executable, th...
RAII and smart pointers in C++
...'s an error. No memory is left hanging.
For instance, another example is network socket RAII. In this case:
We open network socket before we use it,always, even when we don't feel like -- it's hard to do it another way with RAII. If you try doing this without RAII you might open empty socket for...