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Fastest way to list all primes below N
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When casting in the primesfrom2to() method, should the division be inside of the brackets?
– 355durch113
Oct 16 '15 at 22:52
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Scala 2.8 breakOut
...T, To] =
// can't just return b because the argument to apply could be cast to From in b
new CanBuildFrom[From, T, To] {
def apply(from: From) = b.apply()
def apply() = b.apply()
}
Nothing is a subclass of all classes, so any builder factory can be substituted in ...
Best way to represent a fraction in Java?
..., use 18 digits so that the number
//will be at least as accurate as a cast to a double. For example, with
//the fraction 1/3, precision will be 1, giving a result of 0.3. This is
//quite a bit different from what a user would expect.
if(precision < 18)
precision = 18;
...
How to determine CPU and memory consumption from inside a process?
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@CinCout you need a casting.. replace GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc)); with GetProcessMemoryInfo(GetCurrentProcess(), (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc));
– Sumia
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C++ performance vs. Java/C#
...se method (from string to T), or an efficient equivalent of boost::lexical_cast in C# to understand the problem)
RAII remains unmatched (GC still can leak (yes, I had to handle that problem) and will only handle memory. Even C#'s using is not as easy and powerful because writing a correct Dispose im...
内存管理内幕：动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
.../
void *current_location;
/* This is the same as current_location, but cast to a
* memory_control_block
*/
struct mem_control_block *current_location_mcb;
/* This is the memory location we will return. It will
* be set to 0 until we find something suitable
*/
void *memory_loca...
Where and why do I have to put the “template” and “typename” keywords?
... (e.g: a non-type template parameter N)
Type-dependent expressions (e.g: a cast to a type template parameter (T)0)
Most of the rules are intuitive and are built up recursively: For example, a type constructed as T[N] is a dependent type if N is a value-dependent expression or T is a dependent type...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... games, such as Harry Porter. The player can perform different gestures to cast spells to complete some actions needed. Apps can also use custom gestures as shortcuts to perform certain actions.
Our implementation of custom gesture detection involves two parts: 1) how to add user-defined gestures, ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... games, such as Harry Porter. The player can perform different gestures to cast spells to complete some actions needed. Apps can also use custom gestures as shortcuts to perform certain actions.
Our implementation of custom gesture detection involves two parts: 1) how to add user-defined gestures, ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
... games, such as Harry Porter. The player can perform different gestures to cast spells to complete some actions needed. Apps can also use custom gestures as shortcuts to perform certain actions.
Our implementation of custom gesture detection involves two parts: 1) how to add user-defined gestures, ...