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Override compile flags for single files
...rget rather than overwriting as you seem to expect. For example, from the docs for Properties on Source Files - COMPILE_FLAGS:
These flags will be added to the list of compile flags when this source file builds.
You should be able to countermand the -Weffc++ flag for foo.cpp by doing
set_sou...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...ault version of the program is in your current environment.
This way, you don't have to look for it in a specific place on the system, as those paths may be in different locations on different systems. As long as it's in your path, it will find it.
One downside is that you will be unable to pass ...
How can I use console logging in Internet Explorer?
...? I'm trying to log a bunch of tests/assertions to the console but I can't do this in IE.
10 Answers
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How to elegantly rename all keys in a hash in Ruby? [duplicate]
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I noticed that ages.map! doesn't seem to work... so had to do ages = Hash[ages.map {|k, v| [mappings[k] || k, v] }] to be able to call the variable again with the mapping.
– Chanpory
Nov 9 '10 at 20:32
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C# Thread safe fast(est) counter
...he bus to prevent another CPU from accessing the bus while the calling CPU does its operation. Now, take a look at the C# lock() statement's IL. Here you will see calls to Monitor in order to begin or end a section.
In other words, .Net lock() statement is doing a lot more than the .Net Interlock...
How can I convert an RGB image into grayscale in Python?
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How about doing it with Pillow:
from PIL import Image
img = Image.open('image.png').convert('LA')
img.save('greyscale.png')
Using matplotlib and the formula
Y' = 0.2989 R + 0.5870 G + 0.1140 B
you could do:
import numpy as np...
Boolean method naming readability
Simple question, from a readability standpoint, which method name do you prefer for a boolean method:
12 Answers
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Is it possible to use argsort in descending order?
...methods are O(n log n) in time complexity, because the argsort call is the dominant term here. But the second approach has a nice advantage: it replaces an O(n) negation of the array with an O(1) slice. If you're working with small arrays inside loops then you may get some performance gains from a...
How can I specify the base for Math.log() in JavaScript?
... Added an image with the formula and linked to Wikipedia if you don't mind.
– Anurag
Jun 10 '10 at 23:40
13
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Error handling in Bash
... the code is already incompatible with POSIX removing the function keyword doesn't make it any more able to run under POSIX sh, but my main point was that you've (IMO) devalued the answer by weakening the recommendation to use set -e. Stackoverflow isn't about "your" code, it's about having the best...