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How exactly does a generator comprehension work?
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Do you understand list comprehensions? If so, a generator expression is like a list comprehens...
Why does the C++ map type argument require an empty constructor when using []?
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This issue comes with operator[]. Quote from SGI documentation:
data_type& operator[...
How do I decode a string with escaped unicode?
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108
Edit (2017-10-12):
@MechaLynx and @Kevin-Weber note that unescape() is deprecated from non-br...
RegEx: Grabbing values between quotation marks
...'ve been using the following with great success:
(["'])(?:(?=(\\?))\2.)*?\1
It supports nested quotes as well.
For those who want a deeper explanation of how this works, here's an explanation from user ephemient:
([""']) match a quote; ((?=(\\?))\2.) if backslash exists, gobble it, and wheth...
Open Graph namespace declaration: HTML with XMLNS or head prefix?
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edited Aug 14 '13 at 5:42
Matt Beckman
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SET versus SELECT when assigning variables?
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417
Quote, which summarizes from this article:
SET is the ANSI standard for variable assignm...
Test whether a glob has any matches in bash
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19 Answers
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Active
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Error when trying vagrant up
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edited Oct 21 '17 at 9:10
Jitendra
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answered Jun 17...
How do I determine the size of my array in C?
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1307
Executive summary:
int a[17];
size_t n = sizeof(a)/sizeof(a[0]);
Full answer:
To determ...