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Collect successive pairs from a stream
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@TagirValeev is pairMap ordered on sequental streams? Actually, I would like to have forPairsOrdered(), but as there is no such method, can I simulate it somehow? stream.ordered().forPairs() or stream().pairMap().forEachOrdered()?
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What is a “cache-friendly” code?
... algorithm design
Whenever possible, try to adapt your data structures and order of computations in a way that allows maximum use of the cache. A common technique in this regard is cache blocking (Archive.org version), which is of extreme importance in high-performance computing (cfr. for example AT...
Re-ordering columns in pandas dataframe based on column name [duplicate]
... dataframe with over 200 columns. The issue is as they were generated the order is
11 Answers
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Yii2 data provider default sorting
... ActiveDataProvider([
'query' => $query,
'sort'=> ['defaultOrder' => ['topic_order' => SORT_ASC]],
]);
Official doc link
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What is the meaning of “non temporal” memory accesses in x86
...Therefore non-temporal stores must be followed by an SFENCE instruction in order for their results to be seen by other processors in a timely fashion.
When data is produced and not (immediately) consumed again, the fact that memory store operations read a full cache line first and then modify the c...
Adding multiple columns AFTER a specific column in MySQL
...pend to the table.
E.g: if you want to add count, log, status in the exact order after lastname, then the syntax would actually be:
ALTER TABLE users
ADD COLUMN log VARCHAR(12) NOT NULL AFTER lastname,
ADD COLUMN status INT(10) UNSIGNED NOT NULL AFTER lastname,
ADD COLUMN count SMALLINT(...
Only initializers, entity members, and entity navigation properties are supported
... the not Paid ones.
public ActionResult Index()
{
var debts = storeDB.Orders
//.Where(o => o.Paid == false)
.OrderByDescending(o => o.DateCreated);
debts = debts.Where(o => o.Paid == false);
return View(debts);
}
That, of course, would mean that you bringing...
How to compare objects by multiple fields
...thenComparing(Person::getLastName, Comparator.nullsFirst(Comparator.naturalOrder())) - first field selector, then comparator
– gavenkoa
May 30 '18 at 14:22
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Fastest sort of fixed length 6 int array
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Since these are integers and compares are fast, why not compute the rank order of each directly:
inline void sort6(int *d) {
int e[6];
memcpy(e,d,6*sizeof(int));
int o0 = (d[0]>d[1])+(d[0]>d[2])+(d[0]>d[3])+(d[0]>d[4])+(d[0]>d[5]);
int o1 = (d[1]>=d[0])+(d[1]>d[2])+(d...
How to overlay one div over another div
...sition: static. This means the element will be positioned according to its order in the HTML structure, with few exceptions.
The other position values are relative, absolute, sticky, and fixed. By setting an element's position to one of these other values it's now possible to use a combination of t...