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What is the reason for performing a double fork when creating a daemon?
... it to acquire one by opening a terminal in the future (System V-
based systems). This second fork guarantees that the child is no
longer a session leader, preventing the daemon from ever acquiring
a controlling terminal.
So it is to ensure that the daemon is re-parented onto...
How do you clear a slice in Go?
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Based on the title "How do you clear a slice in Go?" this is by far and away the safer answer and should be the accepted one. A perfect answer would be the combination of the originally accepted answer and this one so people ...
How to exclude certain directories/files from git grep search
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With the example by @kynan as base I made this script and put it in my path (~/bin/) as gg. It does use git grep but avoids some specified filetypes.
In our repo its a lot of images so I have excluded the imagefiles, and this takes the serchtime down to...
What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
... it tells if the child is orphaned. it should also be removed from the database.
A child is orphaned when it can`t be accessed from its parent.
For example, if we remove the Person objects set (setting it to an empty set) or replace it with a new set then the parent can no longer access the childre...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
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Updated link: docs.microsoft.com/en-us/dotnet/standard/base-types/…
– Ohad Schneider
Oct 3 '18 at 21:40
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iPhone App Icons - Exact Radius?
...day) for your app and they can all have a different look - not necessarily based on the 512x512 image.
corner radius for the 512x512 icon = 80 (iTunesArtwork)
corner radius for the 1024x1024 icon = 180 (iTunesArtwork Retina)
corner radius for the 57x57 icon = 9 (iPhone/iPod Touch)
corner radius fo...
Specifying and saving a figure with exact size in pixels
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This worked for me, based on your code, generating a 93Mb png image with color noise and the desired dimensions:
import matplotlib.pyplot as plt
import numpy
w = 7195
h = 3841
im_np = numpy.random.rand(h, w)
fig = plt.figure(frameon=False)
f...
First-time database design: am I overengineering? [closed]
...doxy here. This is a reporting server you are building, not a transaction based application backend, which would have a much different profile with respect to the importance of performance or normalization. A database backing a live signup and scheduling application has to be mindful of queries th...
How do I write good/correct package __init__.py files
...t imports are good things, and I strong suggest reconsidering any approach based on systematically bypassing either or both concepts!-)
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Why is arr = [] faster than arr = new Array?
...on so you can understand how much more (or less) processing is required.
Based on the above tokens, we know as a fact ARRAY_INIT will always produce an array. We therefore simply create an array and populate it. As far as ambiguity, the lexical analysis stage has already distinguished ARRAY_INIT...