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What should main() return in C and C++?
...alue for main indicates how the program exited. Normal exit is represented by a 0 return value from main. Abnormal exit is signaled by a non-zero return, but there is no standard for how non-zero codes are interpreted. As noted by others, void main() is prohibited by the C++ standard and should not ...
PHP - find entry by object property from an array of objects
...ubsequent answers for more information on the latter - Reference PHP array by multiple indexes
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For each row return the column name of the largest value
...ong putting all the departments in one column and counts in another, group by the employer id (in this case, the row number), and then filter to the department(s) with the max value. There are a couple of options for handling ties with this approach too.
library(tidyverse)
# sample data frame with...
git rebase without changing commit timestamps
...ter-date-is-author-date SHA
See git am:
--committer-date-is-author-date
By default the command records the date from the e-mail message as the commit author date, and uses the time of commit creation as the committer date.
This allows the user to lie about the committer date by using the same val...
Token Authentication for RESTful API: should the token be periodically changed?
...
Also, you could expire tokens from the table by evicting old ones periodically in a cronjob (Celery Beat or similar), instead of intercepting the validation
– BjornW
Mar 15 '19 at 15:14
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What do 'real', 'user' and 'sys' mean in the output of time(1)?
...al refers to actual elapsed time; User and Sys refer to CPU time used only by the process.
Real is wall clock time - time from start to finish of the call. This is all elapsed time including time slices used by other processes and time the process spends blocked (for example if it is waiting for ...
How to get current CPU and RAM usage in Python?
...n running processes and system utilization (CPU, memory) in a portable way by using Python, implementing many functionalities offered by tools like ps, top and Windows task manager.
It currently supports Linux, Windows, OSX, Sun Solaris, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architect...
Rounding up to next power of 2
... edited May 30 '18 at 17:12
Toby Speight
22.1k1313 gold badges5454 silver badges7979 bronze badges
answered Jan 21 '09 at 17:30
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SQL Server CTE and recursion example
...block is called an [Anchor]
-- The query finds all root nodes as described by WHERE ManagerID IS NULL
SELECT EmployeeID, FirstName, LastName, ManagerID, 1
FROM Employees
WHERE ManagerID IS NULL
-->>>>>>>>>>Block 1>>>>>>>>>>>&...
Using Chrome's Element Inspector in Print Preview Mode?
...button in the left top corner (CTRLSHIFTM).
Make sure the console is shown by clicking Show console in menu at (1) (ESC key toggles the console if Developer Toolbar has focus).
Check Emulate print media at the rendering tab which can be opened by selecting Rendering in menu at (2).
Chrome v46+:
O...