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The point of test %eax %eax [duplicate]
I'm very very new to assembly language programming, and I'm currently trying to read the assembly language generated from a binary. I've run across
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How to check if DST (Daylight Saving Time) is in effect, and if so, the offset?
...code uses the fact that getTimezoneOffset returns a greater value during Standard Time versus Daylight Saving Time (DST). Thus it determines the expected output during Standard Time, and it compares whether the output of the given date the same (Standard) or less (DST).
Note that getTimezoneOffset...
Difference between app.all('*') and app.use('/')
Is there a useful difference between app.all('*', ... ) and app.use('/', ...) in Node.JS Express?
7 Answers
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Is quitting an application frowned upon?
Moving on in my attempt to learn Android, I just read the following :
40 Answers
40
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Which is the best library for XML parsing in java [closed]
I'm searching the java library for parsing XML (complex configuration and data files), I googled a bit but couldn't found other than dom4j (Seems like they are working on V2).. I have taken look at commons configuration but didn't like it, Other apache projects on XML seems under hibernation. I have...
What REALLY happens when you don't free after malloc?
...hink of might be something like Palm OS where the program's static storage and runtime memory are pretty much the same thing, so not freeing might cause the program to take up more storage. (I'm only speculating here.)
So generally, there's no harm in it, except the runtime cost of having more sto...
SQL Server IN vs. EXISTS Performance
...t. The IN statement requires SQL Server to generate a complete result set, and then create a big IF statement I think.
– Randy Minder
Jan 14 '10 at 16:04
74
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What techniques can be used to speed up C++ compilation times?
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Language techniques
Pimpl Idiom
Take a look at the Pimpl idiom here, and here, also known as an opaque pointer or handle classes. Not only does it speed up compilation, it also increases exception safety when combined with a non-throwing swap function. The Pimpl idiom lets you reduce the depen...
Cosmic Rays: what is the probability they will affect a program?
Once again I was in a design review, and encountered the claim that the probability of a particular scenario was "less than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is.
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Elegant solution to duplicate, const and non-const, getters? [duplicate]
...e member function calling it is non-const, the object itself is non-const, and casting away the const is allowed.
class Foo
{
public:
const int& get() const
{
//non-trivial work
return foo;
}
int& get()
{
return const_cast<int&>(const_c...