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I've decided to get more acquainted with my favorite programming language, but only reading the standard is boring.
What are the most surprising, counter-intuitive, or just plain weird elements of C++? What has shocked you enough that you ran to your ...
Started by Jurily on
, 8 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
I found it somewhat surprising that
class aclass.
Usually is, I found it somewhat surprising that the standard actually allows you to delete null, ['u']=1};
Most of these are true for C++ also.
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What are the most strange/sophisticated/surprising/deeply hidden software vulnerabilities or exploits you have ever seen? Places in code where you thought that there is no danger hidden, but were wrong?
[To clarify: Everybody knows SQL injections, XSS...
Started by sdcvvc on
, 30 posts
by 28 people.
Answer Snippets (Read the full thread at stackoverflow):
EDIT: Just boot attacks are perhaps more a hardware....
No wow factor here, just something else to be aware of .
But one of the most surprising exploits I recently heard about was putting SQL injections into bar in general was surprising to me.
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Hi,
I've recently wrote a C# console time tabling algorithm that is based on a combination of a genetic algorithm with a few brute force routines thrown in. The initial results were promising but I figured I could improve the performance by splitting ...
Started by Myles J on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Could it be something silly like very slow console writes?
It sounds like you're changing between an x86 and x64 platform too, but you don't say how your .NET app is compiled - is it running as 32- or... .
You need to find out where it's spending its time .
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Ask your Facebook Friends
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I'm trying to figure out how to correctly use Java's Executors. I realize submitting tasks to an ExecutorService has its own overhead. However, I'm surprised to see it is as high as it is.
My program needs to process huge amount of data (stock market ...
Started by Shahbaz on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
A multiplication on a CPU with FPP....
The job is too simple that the pooling overhead can't be justified .
This is not a fair test for the thread pool for following reasons,
You are not taking advantage of the pooling at all because you only have 1 thread .
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How surprising, Newt's "money man" in trouble...
http://news.yahoo.com/bribes-chinese...-abc-news.html
Started by George Klass on
, 15 posts
by 6 people.
Answer Snippets (Read the full thread at yellowbullet):
Goldman Saks surprising, Newt's "money man"....
Token!? LMAO! Re: How surprising, Newt's "money man" in trouble...
Shoot em down!
Hey, what ever happened to er what's his face... .
Re: How surprising, Newt's "money man" in trouble...
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I am working on JUnitMax, a project to increase the utility of automated tests. I'm looking for novel, unexpected ways tests prove valuable. For example, I use tests in responding to defects--one at the system level that fails, reproducing the defect ...
Started by Kent Beck on
, 13 posts
by 13 people.
Answer Snippets (Read the full thread at stackoverflow):
So I've extended JUnit with a compareOutput() method which:
Folds CR, CR/LF, LF -> LF Strips trailing whitespace Figures... .
I usually run my JSPs and other code which generates HTML in unit tests and I compare the results against "known good" HTML files .
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I'm trying to figure out the behavior of the library function groupBy (from Data.List), which purports to group elements of a list by an "equality test" function passed in as the first argument. The type signature suggests that the equality test just ...
Started by Pillsy on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Have a look at the ghc implementation of groupBy :
groupBy :: (a -> a -> Bool) -> [a] -> [[a]] groupBy _ [] = [] groupBy eq (x:xs) = (x:ys) : groupBy eq zs where (ys,zs) = span (eq x) xs
Now compare these two outputs:
Prelude List> groupBy... .
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I’ve just found out that the execution plan performance between the following two select statements are massively different:
select * from your_large_table where LEFT(some_string_field, 4) = '2505' select * from your_large_table where some_string_field...
Started by Simon Hughes on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
If you use a function on a column with an index then... .
On the other hand, like is a built in language feature which is highly optimized .
There's a huge impact on using function calls in where clauses as SQL Server must calculate the result for each row .
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I am using this unit in a Delphi 2010 application to tell me what Active Directory Groups a user is a member of.
I created a brand-new test vcl forms application, added the unit from that link, and made a little form with an edit box for the username,...
Started by JosephStyons on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
When the program ends your btnShowGroupsClick method, the ListBox tries to use this pointer, ... .
When you do listBoxADGroups.Items := slGroups; you are replacing listBoxADGroups.Items by a pointer to slGroups, a couple of lines below, you are freeing it .
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I'm using the following code in Python 2.5.1 to generate a UTC timestamp from a string representation of a date:
time.mktime(time.strptime("2009-06-16", "%Y-%m-%d"))
The general result is: 1245103200 (16.6.2009 0:00 UTC or 15.6.09 22:00:00, if you're ...
Started by Bertolt on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
What version of Python are you running? There are two bug descriptions here which sound a lot like what you are experiencing:
http://bugs.python.org/issue5582 http://mercurial.selenic.com/bts/issue1364 Found the answer myself:
When executing the following... .
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