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In php, is 0 treated as empty?
...
http://php.net/empty
The following things are considered to be empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a ...
What's the difference between deque and list STL containers?
...that a horse works like a dog because they both implement attack() and make_noise().
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Expanding a parent to the height of its children
...lax. One thing is claiming overlay isn't supported outside Webkit. Another completely different is to say it doesn't exist at all. Please, RTFM first. ;)
– Alba Mendez
Jul 11 '12 at 20:33
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What's the difference of “./configure” option “--build”, “--host” and “--target”?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Can I use assert on Android devices?
...ted answer because it doesn't answer the question (I agree with @Martin 's comment). Other answers explain how to make the assert keyword function properly, e.g. run "adb shell setprop debug.assert 1"
– jfritz42
Nov 8 '12 at 16:36
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Iterate keys in a C++ map
...te on the keys instead of the pairs), then take a look at Boost's transform_iterator.
[Tip: when looking at Boost documentation for a new class, read the "examples" at the end first. You then have a sporting chance of figuring out what on earth the rest of it is talking about :-)]
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How to write an async method with out parameter?
...rs.
Lucian Wischik explains why this is not possible on this MSDN thread: http://social.msdn.microsoft.com/Forums/en-US/d2f48a52-e35a-4948-844d-828a1a6deb74/why-async-methods-cannot-have-ref-or-out-parameters
As for why async methods don't support out-by-reference parameters?
(or ref paramete...
Count number of occurrences of a pattern in a file (even on same line)
... a.txt b.txt | sort | uniq -c works just fine (with GNU grep): gist.github.com/hudolejev/81a05791f38cbacfd4de3ee3b44eb4f8
– hudolejev
Apr 13 '17 at 8:00
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How can I quickly sum all numbers in a file?
...ing as the awk solution in Ayman Hourieh's answer:
% perl -nle '$sum += $_ } END { print $sum'
If you're curious what Perl one-liners do, you can deparse them:
% perl -MO=Deparse -nle '$sum += $_ } END { print $sum'
The result is a more verbose version of the program, in a form that no one ...
Cast Int to enum in Java
...olean Compare(int i){return id == i;}
public static A GetValue(int _id)
{
A[] As = A.values();
for(int i = 0; i < As.length; i++)
{
if(As[i].Compare(_id))
return As[i];
}
return A.None;...