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How I can delete in VIM all text from current line to end of file?
...iting and saving the file.
head hugefile > firstlines
(If you are on Windows you can use the Win32 port of head)
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Why is printing to stdout so slow? Can it be sped up?
... a display event loop, rendering characters from some font, moving display bits to implement a scrolling display. The latter scenario is probably spread over multiple processes (e.g. telnet server/client, terminal app, X11 display server) so there are context switching and latency issues too.
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Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...ect... read the "Declared Properties " section
hoping this helps you out a bit...
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ruby inheritance vs mixins
...nd
end
class C
include A
include B
end
c = C.new
c.sayhi
Which one wins? In Ruby, it turns out the be the latter, module B, because you included it after module A. Now, it's easy to avoid this problem: make sure all of module A and module B's constants and methods are in unlikely namespace...
IF… OR IF… in a windows batch file
...E IF logic that arasmussen uses on the grounds that it might perform a wee bit faster if the 1st condition is true, but I never bother.
Addendum - This is a duplicate question with nearly identical answers to Using an OR in an IF statement WinXP Batch Script
Final addendum - I almost forgot my favor...
Setting different color for each series in scatter plot on matplotlib
...e call, you can make a big list of colors, with a list comprehension and a bit of flooring division:
import matplotlib
import numpy as np
X = [1,2,3,4]
Ys = np.array([[4,8,12,16],
[1,4,9,16],
[17, 10, 13, 18],
[9, 10, 18, 11],
[4, 15, 17, 6],
[7, 10, 8, 7],
[9, ...
Converting RGB to grayscale/intensity
...produces a slightly darker image.
NOTE: The following code assumes xRGB 32bit pixel format
unsigned int *pntrBWImage=(unsigned int*)..data pointer..; //assumes 4*width*height bytes with 32 bits i.e. 4 bytes per pixel
unsigned int fourBytes;
unsigned char r,g,b;
for (int index=0;in...
How do you implement a class in C? [closed]
..." being modelled above, each object has its own method pointers which is a bit more flexible than you'd typically find in C++. Also, it costs memory. You could get away from that by stuffing the method pointers in a class structure, and invent a way for each object instance to reference a class.
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BackgroundWorker vs background Thread
...ion about the choice of background thread implementation I should use on a windows form app. Currently I have a BackgroundWorker on a form that has an infinite (while(true)) loop. In this loop I use WaitHandle.WaitAny to keep the thread snoozing until something of interest happens. One of the ...
WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a Scrip
... I installed .Net 4.5.2 and then I fell into this issue. I assume the windows update for 4.5.2 changed the machine config.
– Rez.Net
May 1 '15 at 1:59
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