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How to check if std::map contains a key without doing insert?
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310
Use my_map.count( key ); it can only return 0 or 1, which is essentially the Boolean result you ...
Create a tar.xz in one command
...member to man tar :)
tar cfJ <archive.tar.xz> <files>
Edit 2015-08-10:
If you're passing the arguments to tar with dashes (ex: tar -cf as opposed to tar cf), then the -f option must come last, since it specifies the filename (thanks to @A-B-B for pointing that out!). In that case, th...
How to add a jar in External Libraries in android studio
...epth answer to this question. This method is suitable for Android Studio 1.0.0 and above.
STEPS
First switch your folder structure from Android to Project.
Now search for the libs folder inside app - build folder.
Once you have pasted the .jar file inside libs folder. Right click o...
Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
... cachePolicy:NSURLRequestReloadIgnoringCacheData
timeoutInterval:60.0];
Then create the connection
NSURLConnection *conn = [NSURLConnection connectionWithRequest:request
delegate:self];
and implement the connection:willCacheResponse: method on the delegate. Just returning nil sh...
How can I do a line break (line continuation) in Python?
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@OneToMany List vs Set difference
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answered Jul 3 '11 at 13:03
JB NizetJB Nizet
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Mockito test a void method throws an exception
... hooknc
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answered Mar 1 '13 at 11:48
JB NizetJB Nizet
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What is the `zero` value for time.Time in Go?
...the following print statement:
fmt.Println(time.Time{})
The output is:
0001-01-01 00:00:00 +0000 UTC
For the sake of completeness, the official documentation explicitly states:
The zero value of type Time is January 1, year 1, 00:00:00.000000000 UTC.
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How do you list all triggers in a MySQL database?
...atement
from information_schema.triggers
You can do this from version 5.0.10 onwards.
More information about the TRIGGERS table is here.
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Instantiating object of type parameter
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answered Nov 18 '08 at 20:24
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