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What are the barriers to understanding pointers and what can be done to overcome them? [closed]
... like after operations, but they are more low-level in nature. However, in order to accurately explain how buffer overruns really work, it was important that I added these diagrams.
Disclaimer: For all intents and purposes, this explanation and the example memory
layouts are vastly simplified. Ther...
Seedable JavaScript random number generator
...a random generator function. SeedRandom can be called with no arguments in order to seed the returned random function with the current time, or it can be called with either 1 or 2 non-negative inters as arguments in order to seed it with those integers. Due to float point accuracy seeding with only ...
Fastest way to get the first object from a queryset in django?
...
also, first() and last() enforce an ORDER BY clause on a query. It will make the results deterministic but will most probably slow the query down.
– Phil Krylov
Jun 27 '17 at 19:24
...
Type-juggling and (strict) greater/lesser-than comparisons in PHP
...tors deviate from the computer-scientific definitions in several ways:
In order to constitute an equivalence relation == has to be reflexive, symmetric and transitive:
PHP's == operator is not reflexive, i.e. $a == $a is not always true:
var_dump(NAN == NAN); // bool(false)
Note: The fact that...
Twitter Bootstrap Customization Best Practices [closed]
...ns
@import "variables.less"; // Modify this for custom colors, font-sizes, etc
@import "bootstrap/mixins.less";
// Grid system and page structure
@import "bootstrap/scaffolding.less";
@import "bootstrap/grid.less";
@import "bootstrap/layouts.less";
...
Add your CSS overrides in the theme.less fil...
What's the -practical- difference between a Bare and non-Bare repository?
...e focal point for collaborative
development. Other developers clone and fetch from the bare
repository and push updates to it... if you set up a repository into
which developers push changes, it should be bare. In effect, this is
a special case of the more general best practice that a publis...
Which HTML Parser is the best? [closed]
...f such documents, it is necessary to first clean up the mess and bring the order to tags, attributes and ordinary text. For the given HTML document, HtmlCleaner reorders individual elements and produces well-formed XML. By default, it follows similar rules that the most of web browsers use in order ...
What is the best open-source java charting library? (other than jfreechart) [closed]
...t in return which you could futher customize, i.e. add a title, gridlines, etc...
– fccoelho
Nov 6 '08 at 8:08
3
...
How does “cat
....
The following does not work for that case:
$ sudo cat <<EOF >/etc/somedir/foo.conf
# my config file
foo=bar
EOF
because the redirection is handled outside of the sudo context.
I ended up using this instead:
$ sudo tee <<EOF /etc/somedir/foo.conf >/dev/null
# my config file
...
Mod of negative number is melting my brain
... definition (my answer) is consistent with ALGOL, Dart, Maple, Pascal, Z3, etc. The "sign of divisor" (this answer) is consistent with: APL, COBOL, J, Lua, Mathematica, MS Excel, Perl, Python, R, Ruby, Tcl, etc. Both are inconsistent with "sign of dividend" as in: AWK, bash, bc, C99, C++11, C#, D, E...