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Can every recursion be converted into iteration?
...u always turn a recursive function into an iterative one? Yes, absolutely, and the Church-Turing thesis proves it if memory serves. In lay terms, it states that what is computable by recursive functions is computable by an iterative model (such as the Turing machine) and vice versa. The thesis does ...
Define make variable at rule execution time
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In your example, the TMP variable is set (and the temporary directory created) whenever the rules for out.tar are evaluated. In order to create the directory only when out.tar is actually fired, you need to move the directory creation down into the steps:
out.tar : ...
JavaScript get window X/Y position for scroll
...- (doc.clientTop || 0);
That is:
It tests for window.pageXOffset first and uses that if it exists.
Otherwise, it uses document.documentElement.scrollLeft.
It then subtracts document.documentElement.clientLeft if it exists.
The subtraction of document.documentElement.clientLeft / Top only appea...
Need to understand the usage of SemaphoreSlim
Here is the code I have but I don't understand what SemaphoreSlim is doing.
3 Answers
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Sass - Converting Hex to RGBa for background opacity
...the hex color into RGB components, though, you can use the red(), green(), and blue() functions to do so:
$red: red($color);
$green: green($color);
$blue: blue($color);
background: rgb($red, $green, $blue); /* same as using "background: $color" */
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How can I get the assembly file version
...code is that, it'll actually return 1.0.*.* if you haven't specified Build and Revision numbers. AssemblyName.GetAssemblyName(assembly.Location).Version.ToString(); will get you the 'compiled' version number - which should be the same as FileVersion, if you're setting both versions the same way.
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Android 4.1: How to check notifications are disabled for the application?
Android 4.1 offers the user a check box to disable notifications for a specific application.
6 Answers
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Should I always use a parallel stream when possible?
With Java 8 and lambdas it's easy to iterate over collections as streams, and just as easy to use a parallel stream. Two examples from the docs , the second one using parallelStream:
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error: passing xxx as 'this' argument of xxx discards qualifiers
... {
return name;
}
This is necessary because now you can call getId() and getName() on const objects as:
void f(const StudentT & s)
{
cout << s.getId(); //now okay, but error with your versions
cout << s.getName(); //now okay, but error with your versions
}
As a s...
Drop multiple tables in one shot in mysql
How to drop multiple tables from one single database at one command.
something like,
4 Answers
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