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Compile the following class
class Interface { virtual void doIt() = 0; virtual ~Interface() = 0; }; inline Interface::~Interface() {}
using gcc -fdump-class-hierarchy .
gcc emits
Class Interface size=4 align=4 base size=4 base align=4 Interface (0x1a7...
Started by Tobias on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Apparently GCC calls that "nearly empty"..
"nearly-empty" seems to mean it hasa vtable a similar "no extra overhead" base class.
Is what you get if compile a class with no members at all .
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I have a field in a database that is nearly unique: 98% of the time the values will be unique, but it may have a few duplicates. I won't be doing many searches on this field; say twice a month. The table currently has ~5000 records and will gain about...
Started by Darryl Hein on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
The data is either unique, or it's not, but that doesn't .
The 'nearly unique' is probably a red herring.
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I make a set of pictures of landscape from nearly same point and direction, one photo each day for three months. Is there a way for creating video from this image set which can run smooth? I need some like this question ( http://stackoverflow.com/questions...
Started by Denis Barmenkov on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
This is with ffmpeg
You can use VirtualDub which has the ability to open a image sequence, it also has the option to define pre compression filters, I know it has the noise filter not sure ... .
Here's a tutorial on how to "Make movies from image files" .
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I am developing an interpreter of a simple programming language.
There are tree-structured dynamic data , where each of the data nodes has an associated (owned) type-object . There are several kinds of the types - ListType, StructType etc. - and one special...
Started by Michal Czardybon on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
What separates the environments? If it is the execution context (objects in a context only call ones in the same context), then you might use one thread per environment and store the "local-globals" in a thread-local storage (or just a global map with... .
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I've had my share of broken storage media. During just last year, I've had:
two broken 500GB Seagate hard drives; one was new, broke completely, got different one - refurbished, but a little bit broken too (after running for a little while it just hangs...
Started by Paweł Gościcki on
, 14 posts
by 14 people.
Answer Snippets (Read the full thread at superuser):
But, how did you....
It's quite simple but simply the best thing you can have .
You can also have USB Key up to 64Go.
USB key is the best.
I would use Flash Drive or something that you can drop on the floor without losing all data .
I would not go with HDD.
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What's the best way to pass an optional argument that is nearly always the same? Case in point is Javascript's parseInt function; the second argument for radix is optional, but to avoid a string beginning with a zero being treated as octal, it is generally...
Started by George Jempty on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Depending on the number of parameters you might want to Introduce Parameter Object... .
I'd go with your solution - wrap it in a suitably-named function, keep it's behaviour/calling convention consistent with the library function, and use the wrapper function .
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I am currently searching a (if possible completely free security-solution for a Computer-Network of a really small private School in the USA.
The Infrastructure: Currently the school has one Server running Windows Server 2003 Small Business Version with...
Started by BasisBit on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at serverfault):
Anti-Virus and Malware scans are not only time consuming, quite often... .
Faronics offer special rates to educational facilities, IIRC the costs per machine are something like $15 .
I have excellent experiences with Faronics DeepFreeze on school computers .
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I know the question seems very simple at a first glance, but please hear me out before responding. I did my own research, and want to hear your thoughts/opinions. If you don't care, and just want to see what I'm asking, see the points at the end of my...
Started by Breakthrough on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at superuser):
Let us know in two months how is that strategy... .
Think you are ok to proceed.
You have just complete the experiment and it shows it is ok .
Am I safe in assuming that I can completely disable the hibernate mode on my laptop, and just use the standby mode?
Yes .
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I'm having a problem where the Finder uses WAY too much CPU time. It's using up to 100% of one of my cores.
I'm running 10.6.2 on a MacBook Pro w/ 6GB of RAM, plenty of fast (SSD) disk space. I also run DropBox and BackBlaze.
I've tried disabling my third...
Started by jerwood on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at superuser):
That my Mac Pro will take about a minute or two minutes of nearly 100% usage when I initially turn.
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I have an array of values which is almost, but not quite sorted, with a few values displaced (say, 50 in 1 ). How to sort it most efficiently? (performance is absolutely crucial here and should be way faster than O(N)).
I know about smoothsort, but I ...
Started by Alexander Temerev on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
[Sun] JDK7 has (or will have.
You are right downto 0, the times will be smaller on nearly-sorted array.
It would work reasonably well on nearly-sorted input.
Could do a cocktail sort.
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