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std::function vs template

...statically (i.e. at compile time), so the compiler has all the necessary information to optimize and possibly inline the code (which would not be possible if the call were performed through a vtable). Yes, it is true that template support is not perfect, and C++11 is still lacking a support for con...
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Select data from date range between two dates

... SELECT * from Product_sales where (From_date BETWEEN '2013-01-03'AND '2013-01-09') OR (To_date BETWEEN '2013-01-03' AND '2013-01-09') OR (From_date <= '2013-01-03' AND To_date >= '2013-01-09') You have to cover all possibilities. From_Date or To_Date could be between yo...
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Get selected option from select element

...ve stored the value in your variable, the next step would be to send the information stored in the variable to the form field or HTML element of your choosing. It may be a div p or custom element. i.e. <p></p> OR <div></div> You would use: $('p').html(iterations); O...
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Get selected value of a dropdown's item using jQuery

...xt(); return my; } It saves me a ton of precious time, especially on form-heavy applications! share | improve this answer | follow | ...
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What is the most effective way for float and double comparison?

... I found that the Google C++ Testing Framework contains a nice cross-platform template-based implementation of AlmostEqual2sComplement which works on both doubles and floats. Given that it is released under the BSD license, using it in your own code should be no problem, as long as you retain the ...
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Difference between two dates in MySQL

... SELECT TIMEDIFF('2007-12-31 10:02:00','2007-12-30 12:01:01'); -- result: 22:00:59, the difference in HH:MM:SS format SELECT TIMESTAMPDIFF(SECOND,'2007-12-30 12:01:01','2007-12-31 10:02:00'); -- result: 79259 the difference in seconds So, you can use TIMESTAMPDIFF for your...
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How do JavaScript closures work?

...reated. This chain is called the scope chain. In the following code, inner forms a closure with the lexical environment of the execution context created when foo is invoked, closing over variable secret: function foo() { const secret = Math.trunc(Math.random()*100) return function inner() { ...
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Is there any difference between “!=” and “” in Oracle Sql?

... Actually, there are four forms of this operator: <> != ^= and even ¬= -- worked on some obscure platforms in the dark ages which are the same, but treated differently when a verbatim match is required (stored outlines or cached queries)....
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ASP.NET MVC: What is the purpose of @section? [closed]

... a way for you to adjust your shared view (similar to a Master Page in Web Forms). You might find Scott Gu's write up on this very interesting. Edit: Based on additional question clarification The @RenderSection syntax goes into the Shared View, such as: <div id="sidebar"> @RenderSecti...
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How to match, but not capture, part of a regex?

I have a list of strings. Some of them are of the form 123-...456 . The variable portion "..." may be: 7 Answers ...