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What is the meaning of “non temporal” memory accesses in x86
...e needed again in favor of data which will not be used soon. This is especially true for large data structures, like matrices, which are filled and then used later. Before the last element of the matrix is filled the sheer size evicts the first elements, making caching of the writes ineffective.
Fo...
What is the best way to use a HashMap in C++?
...p the elements are sorted by the key, insert and access is in O(log n). Usually the standard library internally uses red black trees for ordered maps. But this is just an implementation detail. In an unordered map insert and access is in O(1). It is just another name for a hashtable.
An example wit...
What does auto&& tell us?
...value or rvalue expression and I will preserve its constness. This is typically used for forwarding (usually with T&&). The reason this works is because a "universal reference", auto&& or T&&, will bind to anything.
You might say, well why not just use a const auto& beca...
Why do we copy then move?
...rvalues, the above would not compile.
Won't a copy be expensive, especially given something like std::string?
If you pass an rvalue, that will be moved into str, and that will eventually be moved into data. No copying will be performed. If you pass an lvalue, on the other hand, that lvalue wil...
Multi-gradient shapes
...intDrawable();
p.setShape(new RectShape());
p.setShaderFactory(sf);
Basically, the int array allows you to select multiple color stops, and the following float array defines where those stops are positioned (from 0 to 1). You can then, as stated, just use this as a standard Drawable.
Edit: Here's...
社交应用组件 · App Inventor 2 中文网
...ns a list of the most recent messages mentioning the logged-in user.
Initially, the list is empty. To set it, the program must:
Call the Authorize method.
Wait for the IsAuthorized event.
Call the RequestDirectMessages method.
4, Wait for the DirectMessagesReceived event.
...
Canvas width and height in HTML5
...t would be much faster to just reset the css, no?(rather than loop through all objects)...
– EnglishAdam
Sep 11 '14 at 9:28
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
... method group syntax rather than anonymous methods (or lambda syntax) for calling a function.
4 Answers
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How to add texture to fill colors in ggplot2
...: make the border on one bar darker than the others using R
EDIT: I've finally found time to give a brief example of this hack that allows at least 3 types of basic pattern in ggplot2. The code:
Example.Data<- data.frame(matrix(vector(), 0, 3, dimnames=list(c(), c("Value", "Variable", "Fill")))...
List of Timezone ID's for use with FindTimeZoneById() in C#?
Can someone please point me to a complete list of all the timezones referenced by the id expected in TimeZoneInfo.FindTimeZoneById() ? I can't find a list anywhere and I've looked through the .NET documentation.
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