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How can I iterate over an enum?
...gt;
#include <algorithm>
namespace MyEnum
{
enum Type
{
a = 100,
b = 220,
c = -1
};
static const Type All[] = { a, b, c };
}
void fun( const MyEnum::Type e )
{
std::cout << e << std::endl;
}
int main()
{
// all
for ( const auto e : MyEnum::All )
fu...
What are static factory methods?
... none.
public class DbConnection{
private static final int MAX_CONNS = 100;
private static int totalConnections = 0;
private static Set<DbConnection> availableConnections = new HashSet<DbConnection>();
private DbConnection(){
// ...
totalConnections++;
}
p...
Checkbox for nullable boolean
...line-block), vertical, or in a table fashion (display: inline-block; width:100px;)
In the model (I'm using string, string for the dictionary definition as a pedagogical example. You can use bool?, string)
public IEnumerable<SelectListItem> Sexsli { get; set; }
SexDict = new Dictionary...
Best way to remove from NSMutableArray while iterating?
...st using 4 different methods. Each test iterated through all elements in a 100,000 element array, and removed every 5th item. The results did not vary much with/ without optimization. These were done on an iPad 4:
(1) removeObjectAtIndex: -- 271 ms
(2) removeObjectsAtIndexes: -- 1010 ms (because b...
Use of “global” keyword in Python
...
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Neo4j - Cypher vs Gremlin query language
... us that implementing our algorithm directly against the Java API would be 100-200 times faster. We did so and got easily factor 60 out of it. As of now we have no single Cypher query in our system due to lack of confidence. Easy Cypher queries are easy to write in Java, complex queries won't perfor...
Does Typescript support the ?. operator? (And, what's it called?)
...
100
This is defined in the ECMAScript Optional Chaining specification, so we should probably refer...
Callback to a Fragment from a DialogFragment
...
100
I think the key here is setTargetFragment and getTargetFragment. The use of onActivityResult is a little unclear. It would probably be b...
How to implement a Map with multiple keys? [duplicate]
... This requires two look ups for every value access, which is a 100 % performance penalty.
– ceving
Mar 15 '13 at 15:40
...
How can you determine a point is between two other points on a line segment?
...y)) <= 1)
Some random example of usage :
a = Point(0,0)
b = Point(50,100)
c = Point(25,50)
d = Point(0,8)
print Segment(a,b).is_between(c)
print Segment(a,b).is_between(d)
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