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How to print a int64_t type in C
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And, if using C++ on Linux, be sure to #define __STDC_FORMAT_MACROS before including inttypes.h.
– csl
Nov 28 '14 at 8:50
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How to count the number of set bits in a 32-bit integer?
...ed to adjust it to work for a particular language (e.g. using uint32_t for C++ and >>> in Java):
int numberOfSetBits(uint32_t i)
{
// Java: use int, and use >>> instead of >>
// C or C++: use uint32_t
i = i - ((i >> 1) & 0x55555555);
i = (i &...
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 ...
What are bitwise shift (bit-shift) operators and how do they work?
...t; is not an operator, because it would be redundant.
Also note that C and C++ do not distinguish between the right shift operators. They provide only the >> operator, and the right-shifting behavior is implementation defined for signed types. The rest of the answer uses the C# / Java operat...
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...
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...
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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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....