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Is std::vector so much slower than plain arrays?
...ion; ++j)
{
// Slower than accessing pixels[j] three times.
Pixel &pixel = pixels[j];
pixel.r = 255;
pixel.g = 0;
pixel.b = 0;
}
# ./vector
UseArray completed in 3.226 seconds
UseVector completed in 7.54 seconds
UseVectorPushBack completed in 9.859 seconds
The whole thing c...
How to render a PDF file in Android
...
// close the renderer
renderer.close();
For more information see the sample app.
For older APIs I recommend Android PdfViewer library, it is very fast and easy to use, licensed under Apache License 2.0:
pdfView.fromAsset(String)
.pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default...
Getter and Setter declaration in .NET [duplicate]
... a plain field:
public string MyField
But this field can be accessed by all outside users of your class. People can insert illegal values or change the value in ways you didn't expect.
By using a property, you can encapsulate the way your data is accessed. C# has a nice syntax for turning a fiel...
Unauthorised webapi call returning login page rather than 401
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Hi @kevin-junghans thoroughly confused here. the example above from shiva uses a mvc authorization attribute which surely i shouldnt be applying to a webapi action, The example from Brock allen doesnt appear to work either it doesnt think its a ajax request when i step throug...
Difference between Role and GrantedAuthority in Spring Security
...thority as being a "permission" or a "right". Those "permissions" are (normally) expressed as strings (with the getAuthority() method). Those strings let you identify the permissions and let your voters decide if they grant access to something.
You can grant different GrantedAuthoritys (permissions...
mysql_config not found when installing mysqldb python interface
...the linux server I'm connected to via ssh. The script uses mysqldb. I have all the other components I need, but when I try to install mySQLdb via setuptools like so:,
...
“ImportError: No module named” when trying to run Python script
...the notebook to operate from in your ipython_notebook_config.py file (typically using the c.NotebookManager.notebook_dir setting).
The solution is to provide the python interpreter with the path-to-your-module. The simplest solution is to append that path to your sys.path list. In your notebook, fi...
Spring JPA selecting specific columns
...e, you just have to provide a constructor for Document that accepts docId & filename as constructor args.
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How do I see a C/C++ source file after preprocessing in Visual Studio?
...y get link a error saying some obj files cannot be found because it is actually not generated at all.
– smwikipedia
Aug 9 '16 at 2:16
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Python mysqldb: Library not loaded: libmysqlclient.18.dylib
I just compiled and installed mysqldb for python 2.7 on my mac os 10.6. I created a simple test file that imports
15 Answe...