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When should you use a class vs a struct in C++?
... class that has no non-static data members of type non-POD-struct, non-POD-union (or array of such types) or reference, and has no user-defined copy assignment operator and no user-defined destructor." There is no restriction on using the "struct" class-key and no restriction on using "public" (see...
Insert a line at specific line number with sed or awk
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sed -e '8iProject_Name=sowstest' -i start using GNU sed
Sample run:
[root@node23 ~]# for ((i=1; i<=10; i++)); do echo "Line #$i"; done > a_file
[root@node23 ~]# cat a_file
Line #1
Line #2
Line #3
Line #4
Line #5
Line #6
Line #7
Line #8
Line #9
Line #10
[root@node23 ~]# sed -e '3ixxx inse...
T-SQL split string
...)
)
RETURNS TABLE WITH SCHEMABINDING
AS
RETURN ( WITH n(n) AS (SELECT 1 UNION ALL SELECT n+1
FROM n WHERE n <= LEN(@List))
SELECT [Value] = SUBSTRING(@List, n,
CHARINDEX(@Delim, @List + @Delim, n) - n)
FROM n WHERE n <= LEN(@List)
AND SUBSTRING(@Delim + @...
How to include PHP files that require an absolute path?
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This should work
$root = realpath($_SERVER["DOCUMENT_ROOT"]);
include "$root/inc/include1.php";
Edit: added imporvement by aussieviking
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Open a file with su/sudo inside Emacs
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If you use helm, helm-find-files supports opening a file as root with C-c r.
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...been finalized, yet. As I'm guessing the upper-most keys of:
[HKEY_CLASSES_ROOT\Installer\Dependencies\,,amd64,14.0,bundle]
and
[HKEY_CLASSES_ROOT\Installer\Dependencies\,,x86,14.0,bundle]
are subject to change, or at least have different nested GUIDs, I'm going to use list the key that ends with a...
how to use adb command to push a file on device without sd card
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Can we do this without rooting the phone?
– Jacob
Jan 10 '15 at 20:54
2
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Is it possible to group projects in Eclipse?
...whichever projects you defined into the working set. You can also show the union of various sets, and similar gymnastics.
You can define/edit/delete working sets from the little triangle dropdown menu on the Package Explorer and similar directory views.
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Service Temporarily Unavailable Magento?
...d if so delete it.
Magento 1.x : maintenance.flag file is in : magento root directory
Magento 2.x : maintenance.flag file is in : var folder
When Magento is performing certain tasks it temporarily creates this file. Magento checks for its existence and if it's there will send users to ...
SQL “select where not in subquery” returns no results
...LEFT JOIN / IS NULL: Oracle
NOT IN vs. NOT EXISTS vs. LEFT JOIN / IS NULL: MySQL
There are three ways to do such a query:
LEFT JOIN / IS NULL:
SELECT *
FROM common
LEFT JOIN
table1 t1
ON t1.common_id = common.common_id
WHERE t1.common_id IS NULL
NOT EXISTS:
SELECT *
FROM...