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Why is std::map implemented as a red-black tree?
...Red-Black tree more efficient in this aspect of the re-balancing stage and one of the possible reasons that it is more commonly used.
Red-Black trees are used in most collection libraries, including the offerings from Java and Microsoft .NET Framework.
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How do I include a pipe | in my linux find -exec command?
This isn't working. Can this be done in find? Or do I need to xargs?
6 Answers
6
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What is the difference between association, aggregation and composition?
...ew Bar();
}
Aggregation - I have an object which I've borrowed from someone else. When Foo dies, Bar may live on.
public class Foo {
private Bar bar;
Foo(Bar bar) {
this.bar = bar;
}
}
share
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How to continue a Docker container which has exited
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to brief as one line: docker start `docker ps -q -l` && docker attach `docker ps -q -l`
– Daniel YC Lin
Feb 21 '14 at 8:24
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Convert one date format into another in PHP
Is there a simple way to convert one date format into another date format in PHP?
15 Answers
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When should I write the keyword 'inline' for a function/method?
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Oh man, one of my pet peeves.
inline is more like static or extern than a directive telling the compiler to inline your functions. extern, static, inline are linkage directives, used almost exclusively by the linker, not the compil...
Check if one list contains element from the other
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If you just need to test basic equality, this can be done with the basic JDK without modifying the input lists in the one line
!Collections.disjoint(list1, list2);
If you need to test a specific property, that's harder. I would recommend, by default,
list1.stream()
.map(...
Get cookie by name
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One approach, which avoids iterating over an array, would be:
function getCookie(name) {
const value = `; ${document.cookie}`;
const parts = value.split(`; ${name}=`);
if (parts.length === 2) return parts.pop().split(...
Multiple returns from a function
...function would return $var2
function wtf($blahblah = true) {
$var1 = "ONe";
$var2 = "tWo";
if($blahblah === true) {
return $var2;
}
return $var1;
}
In application:
echo wtf();
//would echo: tWo
echo wtf("not true, this is false");
//would echo: ONe
If you wanted them...
How should I call 3 functions in order to execute them one after the other?
If I need call this functions one after other,
11 Answers
11
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