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Why do I get a segmentation fault when writing to a “char *s” initialized with a string literal, but
...stored in read-only memory when the program is run. This is to prevent you from accidentally changing a string constant. In your first example, "string" is stored in read-only memory and *str points to the first character. The segfault happens when you try to change the first character to 'z'.
In t...
What's the difference between a Future and a Promise?
...s no no-argument constructor, and both Future and FutureTask are read-only from the outside (the set methods of FutureTask are protected). The value will be set to the result of the computation from the inside.
On the other hand, the result of a promise can be set by "you" (or in fact by anybody) a...
Is there a way to “autosign” commits in Git with a GPG key?
...
Did you just copy and paste this from VonC's answer?
– Robbie Averill
May 15 '16 at 23:59
19
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Determine command line working directory when running node bin script
...urns absolute path to directory of __filename.
If you need to load files from your module directory you need to use relative paths.
require('../lib/test');
instead of
var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
require(lib + '/test');
It's always relative to ...
When should Flask.g be used?
I saw that g will move from the request context to the app context in Flask 0.10, which made me confused about the intended use of g .
...
Logical Operators, || or OR?
...ect normally.
See also: Logical operators (the following example is taken from there):
// The result of the expression (false || true) is assigned to $e
// Acts like: ($e = (false || true))
$e = false || true;
// The constant false is assigned to $f and then true is ignored
// Acts like: (($f = f...
Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
... to not have accessors prefixed with get. Idiomatic Java code is different from idiomatic Scala code. Sometimes the is prefix used for booleans. davetron5000.github.com/scala-style/naming_conventions/methods/…
– Esko Luontola
Jun 1 '10 at 20:40
...
What do 3 dots next to a parameter type mean in Java?
... for. In this case you use strings[i]
}
}
This answer borrows heavily from kiswa's and Lorenzo's... and also from Graphain's comment.
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Insert Update stored proc on SQL Server
...optimal way to do it and it's called upsert/merge.
Importance of UPSERT - from sqlservercentral.com:
For every update in the case mentioned above we are removing one
additional read from the table if we
use the UPSERT instead of EXISTS.
Unfortunately for an Insert, both the
UPSERT and ...
When should I use a trailing slash in my URL?
...sonal opinion trailing slashes are misused.
Basically the URL format came from the same UNIX format of files and folders, later on, on DOS systems, and finally, adapted for the web.
A typical URL for this book on a Unix-like operating system would be a file path such as file:///home/username/Ro...