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Can I implement an autonomous `self` member type in C++?
...of Foo:
template <typename...Ts>
class Self;
template <typename m>X m>, typename...Ts>
class Self<m>X m>,Ts...> : public Ts...
{
protected:
typedef m>X m> self;
};
#define WITH_SELF(m>X m>) m>X m> : public Self<m>X m>>
#define WITH_SELF_DERIVED(m>X m>,...) m>X m> : public Self<m>X m>,__VA_ARGS__>
class WIT...
How do I create an empty array in YAML?
...
Try using [], like:
empty_array: []
So in Ruby you have:
m>x m> = YAML::load("empty_array: []")
m>x m> # => {"empty_array" => []}
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Get difference between two lists
...t
In [5]: set([1, 2]) - set([2, 3])
Out[5]: set([1])
where you might em>x m>pect/want it to equal set([1, 3]). If you do want set([1, 3]) as your answer, you'll need to use set([1, 2]).symmetric_difference(set([2, 3])).
shar...
How to minify php page html output?
...ring gzip depends on your version: Apache 1.3 uses mod_gzip while Apache 2.m>x m> uses mod_deflate.)
Accept-Encoding: gzip, deflate
Content-Encoding: gzip
Use the following snippet to remove white-spaces from the HTML with the help ob_start's buffer:
<?php
function sanitize_output($buffer) {
$...
Cannot use ref or out parameter in lambda em>x m>pressions
Why can't you use a ref or out parameter in a lambda em>x m>pression?
5 Answers
5
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Difference between a Seq and a List in Scala
I've seen in many em>x m>amples that sometimes a Seq is being used, while other times is the List...
5 Answers
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Difference between rake db:migrate db:reset and db:schema:load
...eletes the database
db:schema:load creates tables and columns within the (em>x m>isting) database following schema.rb
db:setup does db:create, db:schema:load, db:seed
db:reset does db:drop, db:setup
db:migrate:reset does db:drop, db:create, db:migrate
Typically, you would use db:migrate after having ma...
POSTing a @OneToMany sub-resource association in Spring Data REST
... This worked for me. Just make sure the author.post is writable (for em>x m>ample by having a setter or @JsonValue annotation)
– scheffield
May 28 '15 at 3:14
1
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Parse JSON in JavaScript? [duplicate]
...rogramming for an ancient browser, such as IE 7 (2006), IE 6 (2001), Firefom>x m> 3 (2008), Safari 3.m>x m> (2009), etc. Alternatively, you may be in an esoteric JavaScript environment that doesn't include the standard APIs. In these cases, use json2.js, the reference implementation of JSON written by Douglas...
SVG drop shadow using css3
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Here's an em>x m>ample of applying dropshadow to some svg using the 'filter' property. If you want to control the opacity of the dropshadow have a look at this em>x m>ample. The slope attribute controls how much opacity to give to the dropshadow....