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What is 'Pattern Matching' in functional languages?
...= Infinity;
| else = -Infinity;
f(x, y) = (double)x / y;
Hey, C++ supports pattern matching too.
static const int PositiveInfinity = -1;
static const int NegativeInfinity = -2;
static const int NaN = -3;
template <int x, int y> struct Divide {
enum { value = x / y };
};
templa...
Why would anyone use set instead of unordered_set?
C++0x is introducing unordered_set which is available in boost and many other places. What I understand is that unordered_set is hash table with O(1) lookup complexity. On the other hand, set is nothing but a tree with log(n) lookup complexity. Why on earth would anyone use set instead ...
Why is “while ( !feof (file) )” always wrong?
...ue for essentially all the I/O APIs, whether it be the C standard library, C++ iostreams, or other libraries. As long as the I/O operations succeed, you simply cannot know whether further, future operations will succeed. You must always first try the operation and then respond to success or failure....
What is memory fragmentation?
...e heard the term "memory fragmentation" used a few times in the context of C++ dynamic memory allocation. I've found some questions about how to deal with memory fragmentation, but can't find a direct question that deals with it itself. So:
...
Correct approach to global logging in Golang
...re https://google-glog.googlecode.com/svn/trunk/doc/glog.html (Its for the c++ module, but for the most part translates to the golang port)
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foll...
while (1) Vs. for (;;) Is there a speed difference?
... the implied while clause equivalent to while(true).
So according to the C++ standard the code:
for (;;);
is exactly the same as:
{
while (true) {
;
;
}
}
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D Programming Language in the real world? [closed]
...y small, self-contained processes, so interop with large amounts of legacy C++ code is not really necessary or useful. Thus D can get its foot in the door.
I think D will continue to gain grass-roots followers in this way -- on smaller projects that for whatever reason can afford to ditch the C++ ...
What is the reason behind cbegin/cend?
I wonder why cbegin and cend were introduced in C++11?
7 Answers
7
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M_PI works with math.h but not with cmath in Visual Studio
I am using Visual Studio 2010. I have read that in C++ it is better to use <cmath> rather than <math.h> .
7...
How to make my custom type to work with “range-based for loops”?
Like many people these days I have been trying the different features that C++11 brings. One of my favorites is the "range-based for loops".
...