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What are the differences between segment trees, interval trees, binary indexed trees and range trees
... I really get the impression that segment trees < interval trees from this. Is there any reason to prefer a segment tree? E.g. implementation simplicity?
– j_random_hacker
Jul 24 '13 at 21:36
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Passing a std::array of unknown size to a function
...rrently valid C++ even though it compiles in GCC7 with the C++17 flag set. From reading here, function parameters declared as auto are part of the Concepts TS which should eventually be part of C++20.
– Fibbles
May 19 '18 at 17:44
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Routing with Multiple Parameters using ASP.NET MVC
...ecided to use calls like the one below for the user to request information from the API in XML format:
3 Answers
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What is href=“#” and why is it used?
...perty is required only for an anchor to actually be a hyperlink! Read this from w3. So, why not just leave it off for placeholders? Browsers render default styles for elements and will change the default style of an anchor tag that doesn't have the href property. Instead, it will be considered like ...
In OS X Lion, LANG is not set to UTF-8, how to fix it?
...
I noticed the exact same issue when logging onto servers running Red Hat from an OSX Lion machine.
Try adding or editing the ~/.profile file for it to correctly export your locale settings upon initiating a new session.
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
These two lines added...
C++ error: undefined reference to 'clock_gettime' and 'clock_settime'
...
Quoting twkm from ircnet: the linker only maintains a list of symbols needed. once a file's symbols have been searched, only what it needs is kept, what it provides is discarded and it moves to the next filename. so left to right, but ...
How to declare constant map
... that this is not possible. Explained what is possible and gave a citation from the docs why exactly is it not possible to do what he wants.
– Salvador Dali
Nov 13 '16 at 22:16
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What exactly is metaprogramming?
...s that altered themselves at runtime were necessary and very commonplace.
From Paul Graham's essay "What Made Lisp Different":
Many languages have something called a
macro. But Lisp macros are unique. And
believe it or not, what they do is
related to the parentheses. The
designers of Li...
?: operator (the 'Elvis operator') in PHP
...like to expect `value2`
param3 // properly, but problem above
Updated
From RFC. In the future (in PHP 7) operator Null Coalesce Operator will do it, for example:
$param1 = $params['param1'] ?? null;
// Equivalent to: $param1 = isset($params['param1']) ? $params['param1'] : null;
...
When to use references vs. pointers
...
From C++ FAQ Lite -
Use references when you can, and pointers when you have to.
References are usually preferred over pointers whenever you don't need
"reseating". This usually means that references are most usefu...