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Why not infer template parameter from constructor?

... *pm = m; I am not sure if it would be so obvious for the parser to know what template type is the MyClass pm; Not sure if what I said make sense but feel free to add some comment, that's an interesting question. C++ 17 It is accepted that C++17 will have type deduction from constructor argumen...
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What is a loop invariant?

...o Algorithm" by CLRS. In chapter 2, the authors mention "loop invariants". What is a loop invariant? 15 Answers ...
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How can I confirm a database is Oracle & what version it is using SQL?

...on. The user gets to select a datasource they have configured and nominate what type of database it is. I want to confirm that the database type is indeed Oracle, and if possible, what version of Oracle they are running by sending a SQL statement to the datasource. ...
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What's the difference between “ ” and “ ”?

Both of them mean space, but is there any difference? 13 Answers 13 ...
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What is the order of precedence for CSS?

... @jared I swapped the two first points. Is it this what you mean ? – Lorenz Meyer Aug 3 '14 at 15:10 ...
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What REST PUT/POST/DELETE calls should return by a convention?

...ppancy, but if you are doing REST over HTTP then RFC7231 describes exactly what behaviour is expected from GET, PUT, POST and DELETE. Update (Jul 3 '14): The HTTP spec intentionally does not define what is returned from POST or DELETE. The spec only defines what needs to be defined. The rest is l...
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What are the benefits of functional programming? [closed]

What do you think the benefits of functional programming are? And how do they apply to programmers today? 9 Answers ...
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What's the difference between .so, .la and .a library files?

...aries so there is no need to have more than one copy of it in memory). But what is the difference between .a and .la ? Are these all static libraries? ...
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What is a None value?

... Martijn's answer explains what None is in Python, and correctly states that the book is misleading. Since Python programmers as a rule would never say Assigning a value of None to a variable is one way to reset it to its original, empty state. ...
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What's the difference between an exclusive lock and a shared lock?

...e locks cannot be obtained. When the students are reading (shared locks) what is on the board: They all can read what is on it, together => Multiple shared locks can co-exist. The teacher waits for them to finish reading before she clears the board to write more => If one or more shared lo...