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When is std::weak_ptr useful?
...d to keep those in memory, so you get rid of the strong pointer.
But what if that object is in use and some other code holds a strong pointer to it? If the cache gets rid of its only pointer to the object, it can never find it again. So the cache keeps a weak pointer to objects that it needs to fin...
How to send file contents as body entity using cURL
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now how would one add login credentials to authorize this request?
– anon58192932
Jul 20 '17 at 21:14
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Where in an Eclipse workspace is the list of projects stored?
...jects/
Your project can exist outside the workspace, but all Eclipse-specific metadata are stored in that org.eclipse.core.resources\.projects directory
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How do disable paging by swiping with finger in ViewPager but still be able to swipe programmaticall
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Now we no need to create custom ViewPager
A new ViewPager2 name View available in android
Vertical orientation support
ViewPager2 supports vertical paging in addition to traditional horizontal paging. You can enable verti...
When to Redis? When to MongoDB? [closed]
What I want is not a comparison between Redis and MongoDB. I know they are different; the performance and the API is totally different.
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What happens to a detached thread when main() exits?
... joined again" is:
Yes, with the *_at_thread_exit family of functions (notify_all_at_thread_exit(), std::promise::set_value_at_thread_exit(), ...).
As noted in footnote [2] of the question, signalling a condition variable or a semaphore or an atomic counter is not sufficient to join a detached thr...
Does Git warn me if a shorthand commit ID can refer to 2 different commits?
If cee157 can refer to 2 different commit IDs, such as
2 Answers
2
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How are msys, msys2, and msysgit related to each other?
...ng on with these 3 versions of MSYS. (It's entirely possible I just don't know what to look for.) I do understand that MSYS is a minimal port of Linux tools to support development using MinGW, but I'm not clear on the relationship between the three of them or the teams that developed/maintain them.
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Programmatically fire button click event?
...nswer, but more flexible as it'll keep track of the buttons actual actions if you change them or add more than one.
[button sendActionsForControlEvents:UIControlEventTouchUpInside];
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postgresql list and order tables by size
...c'
order by 2
This shows you the size of all tables in the schema public if you have multiple schemas, you might want to use:
select table_schema, table_name, pg_relation_size('"'||table_schema||'"."'||table_name||'"')
from information_schema.tables
order by 3
SQLFiddle example: http://sqlfiddl...