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insert vs emplace vs operator[] in c++ map
...rom which the value_type can be constructed, which is where std::make_pair comes into play, as it allows for simple creation of std::pair objects, although it is probably not what you want...
The net effect of the following calls is similar:
K t; V u;
std::map<K,V> m; // std::map&l...
random.seed(): What does it do?
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Here's a real life scenario: stackoverflow.com/questions/5836335/…. Random seeds are also common to create reproducible results for research. For example, if you're a data scientist and you want to publish your results with some kind of model that uses randomness (e...
The most efficient way to implement an integer based power function pow(int, int)
... whether >>= on a signed int does zero-padding or sign-extension - C compilers are allowed to pick either behaviour).
– user9876
Jul 28 '09 at 16:42
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Declaring functions in JavaScript [duplicate]
...the way they play a role in evolving patterns is massive. I would highly recommend "Javascript: The Good Parts" by Doughlas Crockford.
But to prove my point in a subtle and a simple manner; here is a small example.
//Global function existing to serve everyone
function swearOutLoud(swearWord) {
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Fast ceiling of an integer division in C / C++
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See Eric Lippert's post: stackoverflow.com/questions/921180/c-round-up/926806#926806
– Mashmagar
Apr 30 '10 at 14:53
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MySQL integer field is returned as string in PHP
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Having come to MySQL from a Postgres background I feel the need to say that this is a huge pain in the arse. When you fetched a row in Postgres you coudl be sure that the elements in the row array had appropriate data types. Now I...
ASP.NET Bundles how to disable minification
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PyCharm shows unresolved references error for valid code
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Can't launch my app in Instruments: At least one target failed to launch
...have a remedy for this problem. Generally speaking it's far less useful / common to profile a debug build.
– user501138
Dec 28 '13 at 20:40
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When to use UICollectionView instead of UITableView?
...reating types of UIs with multiple images shown in a grid. This would have complex logic using UITableView, but with UICollectionview, it would be easy.
When using UICollectionview, you don't need to set buttons with tags or other things by getting selected items values. You can simply get -(void)c...