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Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything
...service docker restart
Delete any images which have cached the invalid DNS settings.
Build again and the problem should be solved.
Credit goes to Andrew SB
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Are booleans as method arguments unacceptable? [closed]
... about what the argument yes or no does i.e void turnLightOn(bool) clealy setting true or yes will tunr the light on.
– simon
Sep 25 '08 at 20:38
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How to call a parent method from child class in javascript?
I've spent the last couple of hours trying to find a solution to my problem but it seems to be hopeless.
8 Answers
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Passing a 2D array to a C++ function
I have a function which I want to take, as a parameter, a 2D array of variable size.
15 Answers
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What does void mean in C, C++, and C#?
...ad of time.
For example, in the Linux Kernel when deferring work you will setup a function to be run at a latter time by giving it a pointer to the function to be run and a pointer to the data to be passed to the function:
struct _deferred_work {
sruct list_head mylist;
.worker_func = bar;
.data ...
How to find the 'sizeof' (a pointer pointing to an array)?
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13 Answers
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How to change the icon of an Android app in Eclipse?
...ate your icon
Click Finish
Click "Yes to All" if you already have the icon set to something
else.
Enjoy using a gui rather then messing with an image editor! Hope this helps!
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Check existence of input argument in a Bash shell script
...tor. There are other expansion operators as well:
${varname:=word} which sets the undefined varname instead of returning the word value;
${varname:?message} which either returns varname if it's defined and is not null or prints the message and aborts the script (like the first example);
${varname:...
How to pass command line argument to gnuplot?
...ile
In a Gnuplot script:
#! /usr/bin/gnuplot
name=system("echo $name")
set title name
plot name using ($16 * 8):20 with linespoints notitle
pause -1
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Convert RGB to RGBA over white
...the limiting factor in the problem, so bind this to m:
m = min(r, g, b)
Set the corresponding output value, m', to zero, as we want to maximize transparency:
0 = (m - 1) / a' + 1
-1 = (m - 1) / a'
-a' = m - 1
a' = 1 - m
So, in javascript (translating from 1 to 255 along the way):
function rgb...