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Why does C++ require a user-provided default constructor to default-construct a const object?
... of the standard) and it was resolved by Core Working Group (CWG) Defect 253. The new wording for the standard states in http://eel.is/c++draft/dcl.init#7
A class type T is const-default-constructible if
default-initialization of T would invoke a user-provided constructor
of T (not inherited...
Print array to a file
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Either var_export or set print_r to return the output instead of printing it.
Example from PH...
Why can I initialize a List like an array in C#?
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This is part of the collection initializer syntax in .NET. You can use this syntax on any colle...
MySQL get row position in ORDER BY
...on of 2 when the first query will give a position of 2 to one of them, and 3 to the other...
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...extInt()).par
scala> timeMany(1000, intParList.reduce(_ + _))
Took 462.395867 milli seconds
scala> timeMany(1000, intParList.foldLeft(0)(_ + _))
Took 2589.363031 milli seconds
reduce vs fold
Now this is where it gets a little closer to the FP / mathematical roots, and a little trickier to...
Is it possible to declare two variables of different types in a for loop?
...ith the std::string, if you want to name a type. For example:
auto [vec, i32] = std::tuple{std::vector<int>{3, 4, 5}, std::int32_t{12}}
A specific application of this is iterating over a map, getting the key and value,
std::unordered_map<K, V> m = { /*...*/ };
for (auto& [key, va...
How to extract the n-th elements from a list of tuples?
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edited Mar 6 '19 at 20:33
cs95
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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
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edited Sep 3 '14 at 16:42
answered Oct 2 '10 at 15:32
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Repository Pattern vs DAL
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John Leidegren
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answered Nov 15 '08 at 20:26
Kim MajorKim Major
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smart pointers (boost) explained
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Basic properties of smart pointers
It's easy when you have properties that you can assign eac...