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Best practices for in-app database migration for Sqlite
...ng stringWithFormat:@"userdata.sqlite"];
_database = [[FMDatabase alloc] initWithPath:[documentsDir stringByAppendingPathComponent:databaseName]];
_database.logsErrors = YES;
if (![_database openWithFlags:SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_FILEPROTECTI...
Spark java.lang.OutOfMemoryError: Java heap space
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I suffered from this issue a lot when using dynamic resource allocation. I had thought it would utilize my cluster resources to best fit the application.
But the truth is the dynamic resource allocation doesn't set the driver memory and keeps it to its default value, which is 1G.
I res...
Virtual functions and performance - C++
...s 1st level cache with more memory than my first computer had? Not at all. Allocating memory from main RAM will cost you more time than if all your functions were virtual.
Its like the old, old days where people said structured programming was slow because all the code was split into functions, eac...
Adding header for HttpURLConnection
...t;String, String> headers = new HashMap<>();
headers.put("X-CSRF-Token", "fetch");
headers.put("content-type", "application/json");
for (String headerKey : headers.keySet()) {
httpUrlConnection.setRequestProperty(headerKey, headers.get(headerKey));
}
Reference link
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Pipe subprocess standard output to a variable [duplicate]
...to pipe that indstead. You should also break up the command into a list of tokens as I've done below, or the alternative is to pass the shell=True argument but this fires up a fully-blown shell which can be dangerous if you don't control the contents of the command string.
>>> proc = subpr...
Block Comments in Clojure
...t. For example, (comment "print("/foo")") will die with the error Invalid token: /foo.
– John Wiseman
May 12 '17 at 20:50
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Can't find Request.GetOwinContext
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Token revocation is too hard!!! But this answer finally helped me get it working (plus manually deleting it from the db, which I have access to). Thank you!!
– SlimsGhost
May 28 '15 at ...
Reading a string with scanf
...ld take it then that this would not be the case with a pointer to a string allocated through malloc()?
– abeln
Mar 23 '11 at 15:04
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How to free memory in Java?
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Java uses managed memory, so the only way you can allocate memory is by using the new operator, and the only way you can deallocate memory is by relying on the garbage collector.
This memory management whitepaper (PDF) may help explain what's going on.
You can also call Sy...
How to run a command in the background and get no output?
...tooth1990 Your command line is faulty: -bash: syntax error near unexpected token '&'
– notes-jj
Feb 1 '17 at 17:28
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