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How do I get the current line number?
.... Do you have link numbers turned on in the IDE? If you call this function from different places in the file do you still have to subtract 191? This will either be a compiler bug (unlikely, but possible) or a collapsed block on your page (whilst that shouldn't prevent line numbers from being correct...
What is the difference between Reader and InputStream?
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An InputStream is the raw method of getting information from a resource. It grabs the data byte by byte without performing any kind of translation. If you are reading image data, or any binary file, this is the stream to use.
A Reader is designed for character streams. If the ...
What is the use of ObservableCollection in .net?
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From Pro C# 5.0 and the .NET 4.5 Framework
The ObservableCollection<T> class is very useful in that it has the ability to inform external objects
when its contents have changed in some way (as you might guess, working ...
How to remove all characters after a specific character in python?
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Use rsplit() if you need to split by a character starting from the end of the string.
– Samuel
Dec 16 '14 at 0:03
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Calling C/C++ from Python?
...u should have a look at Boost.Python. Here is the short introduction taken from their website:
The Boost Python Library is a framework for interfacing Python and
C++. It allows you to quickly and seamlessly expose C++ classes
functions and objects to Python, and vice-versa, using no special
...
UIView Infinite 360 degree rotation animation?
...low but for newer programmers and new projects, Apple now warns users away from these methods in the Docs & @Nate code uses the block based animations that Apple now prefers
– PaulWoodIII
May 15 '13 at 4:46
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Recursive lambda functions in C++11
...on and the fully specified type version. The auto keyword infers its type from whatever it's initialized with, but what you're initializing it with needs to know what its type is (in this case, the lambda closure needs to know the types it's capturing). Something of a chicken-and-egg problem.
On ...
Programmatically saving image to Django ImageField
...s an image off the web and stores it in a model. The important bits are:
from django.core.files import File # you need this somewhere
import urllib
# The following actually resides in a method of my model
result = urllib.urlretrieve(image_url) # image_url is a URL to an image
# self.photo is ...
Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
...l in a case-insensitive manner, and remove all but the top XML
declaration from the file.
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How to send emails from my Android application?
...am developing an application in Android. I don't know how to send an email from the application?
21 Answers
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