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When to use std::begin and std::end instead of container specific versions [duplicate]
...s C >
auto begin( C& c ) -> decltype(c.begin());
You see that all it does is reference the begin() anyway. I suppose a decent compiler will make the difference nil, so I guess it comes down to preference. Personally, I'd use cont.begin() and cont.end() just so that I wouldn't have to ...
Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
...nces->Security and Privacy->General (You'll get a popup when you install VirtualBox).
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Error: This Android SDK requires Android Developer Toolkit version 22.6.1 or above
I have installed adt version 22.6.1 already 2 days ago. It was working fine. Suddenly, When I open eclipse today, it keeps showing me following error:
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
... the body or individual elements? It seems to improve scroll events drastically.
5 Answers
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How can I fill out a Python string with spaces?
...idth=16,
)
Which results in (you guessed it):
'Hi '
And for all these, you can use python 3.6 f-strings:
message = 'Hi'
fill = ' '
align = '<'
width = 16
f'{message:{fill}{align}{width}}'
And of course the result:
'Hi '
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mysql update column with value from another table
...answer if you need to change tableB.value according to tableA.value dynamically you can do for example:
UPDATE tableB
INNER JOIN tableA ON tableB.name = tableA.name
SET tableB.value = IF(tableA.value > 0, tableA.value, tableB.value)
WHERE tableA.name = 'Joe'
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Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
I just uninstalled my older versions of Ruby, removed all of my gems
(including Rails), and installed Ruby 2.0. In other words, a totally clean re-install. Upon starting IRB, I received this message:
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Should I use pt or px?
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px ≠ Pixels
All of these answers seem to be incorrect. Contrary to intuition, in CSS the px is not pixels. At least, not in the simple physical sense.
Read this article from the W3C, EM, PX, PT, CM, IN…, about how px is a "magical" uni...
Definitive way to trigger keypress events with jQuery
I've read all the answers on to this questions and none of the solutions seem to work.
10 Answers
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Eliminate space before \begin{itemize} [closed]
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@Jason and all: the answer by Paolo below is simple too and much better: \vspace{-\topsep}
– Joce
Jul 22 '14 at 14:50
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