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What are some uses of decltype(auto)?
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For non-generic code, like the initial example you gave, you can manually select to get a reference as a return type:
auto const& Example(int const& i)
{
return i;
}
but in generic code you want to be able to perfectly forward a return type without knowing whether you are dealing ...
PostgreSQL - Rename database
...res
-- force disconnect all other clients from the database to be renamed
SELECT pg_terminate_backend( pid )
FROM pg_stat_activity
WHERE pid <> pg_backend_pid( )
AND datname = 'name of database';
-- rename the database (it should now have zero clients)
ALTER DATABASE "name of database" R...
What is fastest children() or find() in jQuery?
To select a child node in jQuery one can use children() but also find().
6 Answers
6
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How can I load an object into a variable name that I specify from an R data file?
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I'm extending the answer from @ricardo to allow selection of specific variable if the .Rdata file contains multiple variables (as my credits are low to edit an answer). It adds some lines to read user input after listing the variables contained in the .Rdata file.
loadRDa...
Colored logcat in android studio by colorpid
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Warn : BBB529
Error : FF6B68
Assert : 9876AA
Only show logcat from selected process is supported by default feature at AndroidStudio. If you are not satisfied with current customizations you need to continue to use your favorite shell with JakeWharton srcipt as for now.
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Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i
... @EmilMarashliev just the build target. You'll see it when you select your root project (with blue icon).
– Kjuly
Mar 14 '14 at 17:57
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How to get a dependency tree for an artifact?
...ent version of m2eclipse (which you should if you use eclipse and maven):
Select the menu entry
Navigate -> Open Maven POM
and enter the artifact you are looking for.
The pom will open in the pom editor, from which you can select the tab Dependency Hierarchy to view the dependency hierarchy (...
How to output only captured groups with sed?
...only alternative solution is to use a character class: '[[:digit:]]`.
The selected answer use such "character classes" to build a solution:
$ str='This is a sample 123 text and some 987 numbers'
$ echo "$str" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'...
C++常用排序算法汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...汇总sort_algorithm介绍了C++常用的几种排序算法：选择排序(SelectSort)，冒泡排序(BubbleSort)，快速排序(QuickSort)，归并排序(MergeSort)，堆排序(HeapSort)，插入排序(InsertSort)，希尔排序(ShellSort) 1、选择排序(SelectSort)
/************************...
UILabel - Wordwrap text
..., Swift 4
Wrapping the Text for a label can also be done on Storyboard by selecting the Label, and using Attributes Inspector.
Lines = 0
Linebreak = Word Wrap
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