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How to call a shell script from python code?
How to call a shell script from python code?
12 Answers
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Programmatically find the number of cores on a machine
Is there a way to determine how many cores a machine has from C/C++ in a platform-independent way? If no such thing exists, what about determining it per-platform (Windows/*nix/Mac)?
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Double not (!!) operator in PHP
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Using !! is a habit remaining from programming in C(++). In C doing a cast isn't as easy as in PHP, you can get many different problems, compile warnings, a.s.o. Thus people cast to boll by using !!.
– NikiC
Sep 20 '...
CSS transition effect makes image blurry / moves image 1px, in Chrome?
...0 update
If you have issues with blurry images, be sure to check answers from below as well, especially the image-rendering CSS property.
For best practice accessibility and SEO wise you could replace the background image with an <img> tag using object-fit CSS property.
Original answer
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What are the big improvements between guava and apache equivalent libraries?
...pache collections, string utils, etc. I need to decide if we should switch from the apache foundations implementation.
3 An...
How to make my custom type to work with “range-based for loops”?
...n overload will not be called by a for(:) loop. See [stmt.ranged] 1.2-1.3 from n4527.
² Either call the begin/end method, or ADL-only lookup of free function begin/end, or magic for C-style array support. Note that std::begin is not called unless range_expression returns an object of type in nam...
Why does PEP-8 specify a maximum line length of 79 characters? [closed]
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Also, it is preferred to not have code wrap. From a user experience perspective, it's unacceptable for most.
– Justin Bozonier
Sep 18 '08 at 7:00
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Clojure: cons (seq) vs. conj (list)
...e operation (in this case it would probably reduce to 1 + 3 -- the 1 comes from linear traversal over the first element, the 3 comes from (next (cons 4 '(1 2 3)) being a PersistentList and thus Counted).
The intention behind the names is, I believe, that cons means to cons(truct a seq)1, whereas co...
@class vs. #import
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And #import if you use instance variables from the class
– mmmmmm
Jan 5 '12 at 12:15
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How do you set, clear, and toggle a single bit?
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+1. Not that std::bitset is usable from "C", but as the author tagged his/her question with "C++", AFAIK, your answer is the best around here... std::vector<bool> is another way, if one knows its pros and its cons
– paercebal
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