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What is the Swift equivalent to Objective-C's “@synchronized”?
...d on some of the code I've seen from Matt Bridges and others.
func synced(_ lock: Any, closure: () -> ()) {
objc_sync_enter(lock)
closure()
objc_sync_exit(lock)
}
Usage is pretty straight forward
synced(self) {
println("This is a synchronized closure")
}
There is one problem...
Ruby, remove last N characters from a string?
...2644 ( 0.723410)
delete_suffix! 0.650042 0.000714 0.650756 ( 0.651332)
I hope this is useful - note the method doesn't currently accept a regex so if you don't know the suffix it's not viable for the time being. However, as the accepted answer (update: at the time of writing) dictates the ...
C# Sortable collection which allows duplicate keys
...Format("{0}:{1}", tuple.Item1,tuple.Item2));
}
int expected_first = 1;
int expected_last = 3;
int first = list.First().Item1; //requires using System.Linq
int last = list.Last().Item1; //requires using System.Linq
Assert.AreEqual(expected_first, fi...
Iterating over Java collections in Scala
...ares the appropriate conversions.
import scala.collection.JavaConversions._
This won't work in previous versions though.
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C++ lambda with captures as a function pointer
... @KerrekSB put the global variables in a namespace and mark them as thread_local, that's the ftw approach I chose for solving something similar.
– Kjell Hedström
Apr 21 '14 at 15:08
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How do you do Impersonation in .NET?
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kͩeͣmͮpͥ ͩ
7,5112323 silver badges3939 bronze badges
answered Sep 24 '08 at 4:01
Eric SchoonoverEric Schoonover
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C++ sorting and keeping track of indexes
...; // std::iota
#include <algorithm> // std::sort, std::stable_sort
using namespace std;
template <typename T>
vector<size_t> sort_indexes(const vector<T> &v) {
// initialize original index locations
vector<size_t> idx(v.size());
iota(idx.begin(), id...
Delete column from pandas DataFrame
...
As you've guessed, the right syntax is
del df['column_name']
It's difficult to make del df.column_name work simply as the result of syntactic limitations in Python. del df[name] gets translated to df.__delitem__(name) under the covers by Python.
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PHP server on local machine?
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answered Jul 25 '16 at 14:32
l3xl3x
26.2k11 gold badge4444 silver badges3434 bronze badges
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Ioc/DI - Why do I have to reference all layers/assemblies in application's entry point?
... Eliahu Aaron
3,15122 gold badges2020 silver badges3232 bronze badges
answered Feb 29 '12 at 19:39
StevenSteven
146k1818 gold bad...