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efficient circular buffer?
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popping from the head of a list causes the whole list to be copied, so is inefficient
You should instead use a list/array of fixed size and an index which moves through the buffer as you add/remove items
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What is the significance of load factor in HashMap?
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Actually, from my calculations, the "perfect" load factor is closer to log 2 (~ 0.7). Although any load factor less than this will yield better performance. I think that .75 was probably pulled out of a hat.
Proof:
Chaining can be av...
Why am I getting an OPTIONS request instead of a GET request?
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this fixed our problem, changing from "application/json" to "text/plain" stopped the horrible options request
– Keeno
Jul 12 '13 at 9:44
1...
Why is Cache-Control attribute sent in request header (client to server)?
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Cache-Control: no-cache is generally used in a request header (sent from web browser to server) to force validation of the resource in the intermediate proxies.
If the client doesn't send this request to the server, intermediate proxies will return a copy of the content if it is fresh (has no...
Cocoa Touch: How To Change UIView's Border Color And Thickness?
...ter solution to this:
With @IBInspectable you can set Attributes directly from within the Attributes Inspector.
This sets the User Defined Runtime Attributes for you:
There are two approaches to set this up:
Option 1 (with live updating in Storyboard)
Create MyCustomView.
This inherits fro...
Developing cross platform mobile application [closed]
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My answer here covers some of the technical limitations of cross-platfrom tools but let me expand a bit:
I think that cross-platform tools have historically always been also-rans because such tools have the wrong philosophical focus.
All the selling points for cross-plaform tools are the be...
Why does Environment.Exit() not terminate the program any more?
... few days ago, I got confirmation that it isn't just limited to my machine from this question .
4 Answers
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Android Fragment onClick button Method
...you should design for reuse and
avoid directly manipulating one fragment from another fragment.
A possible workaround would be to do something like this in your MainActivity:
Fragment someFragment;
...onCreate etc instantiating your fragments
public void myClickMethod(View v){
someFra...
Read file line by line using ifstream in C++
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Use ifstream to read data from a file:
std::ifstream input( "filename.ext" );
If you really need to read line by line, then do this:
for( std::string line; getline( input, line ); )
{
...for each line in input...
}
But you probably just need...
Reading large text files with streams in C#
... a case where streaming a large, generated CSV file to the Response stream from an ASP.Net MVC action was very slow. Adding a BufferedStream improved performance by 100x in this instance. For more see Unbuffered Output Very Slow
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