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Optimizing away a “while(1);” in C++0x
...a potentially
non-terminating loop. For example, assume we have the following loops,
where count and count2 are global variables (or have had their address
taken), and p is a local variable, whose address has not been taken:
for (p = q; p != 0; p = p -> next) {
++count;
}
for (p = q; p...
What is a stack trace, and how can I use it to debug my application errors?
...connection in your program, you cannot stop the computer from loosing it's internet connection (e.g. you can't stop the user from disconnecting the computer's network connection). In this case the network library will probably throw an exception. Now you should catch the exception and handle it. Thi...
Why doesn't C++ have a garbage collector?
...the paper made a good job of introducing the concepts one at a time and showing the evolution of the algorithm from the "simple" version to the full-fledged one. Recommended reading if only I could put my hands back on the PDF file...
2. Resources Acquisition Is Initialization (RAII)
It's a common...
Why do we use __init__ in Python classes?
...
class Brazilian(Humans)
def do_your_special_thing
win_every_football_world_cup()
class Germans(Humans)
def drink(beverage):
if favorite_drink != beverage: print "I need more beer"
else: print "Lecker!"
class HighSchoolStudent(Americ...
How to parse freeform street/postal address out of text, and into components
...dresses to be complicated. There's dozens of good UX articles all over the Internet about this, but the fact is, if you have an address form with individual fields, that's what users expect, even though it makes it harder for edge-case addresses that don't fit the format the form is expecting, or ma...
Pointers vs. values in parameters and return values
...n find situations where copying even large structs turns out a performance win, but the rule of thumb is not to.
For slices, you don't need to pass a pointer to change elements of the array. io.Reader.Read(p []byte) changes the bytes of p, for instance. It's arguably a special case of "treat littl...
What is a NullPointerException, and how do I fix it?
...r: Thanks for the feedback, you make a valid point. It's difficult on the internet to really judge where someone is at, and at what level it's safe to start an explanation. I'll try revising this again.
– Bill the Lizard
Feb 20 '09 at 4:32
...
Differences between Ant and Maven [closed]
...ng Maven and find it more lengthy during first builds and constantly using internet connection. Building offline is possibly impossible. This is uncomfortable.
– Zon
Aug 27 '15 at 6:11
...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
...mulator)
I'll be updating these later:
Borland C++ Builder 6.0 on Windows XP
..04 a char is signed
but 'CHAR_MIN==SCHAR_MIN' is false.
..08 overshifting is okay
but '(1<<bits_per_int)==0' is false.
..09 overshifting is *always* okay
but '(1<<BITS_PER_INT)==0' is false....
How can I pair socks from a pile efficiently?
...ent than a modern CPU, this question makes no practical sense.
Humans can win over CPU algorithms using the fact that "finding a matching pair" can be one operation for a set that isn't too big.
My algorithm:
spread_all_socks_on_flat_surface();
while (socks_left_on_a_surface()) {
// Thanks t...