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push_back vs emplace_back
...u can now perfectly forward the arguments and construct directly an object into a container without a temporary at all.
That's useful because no matter how much cleverness RVO and move semantic bring to the table there is still complicated cases where a push_back is likely to make unnecessary copi...
Programmatically saving image to Django ImageField
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Here is a method that works well and allows you to convert the file to a certain format as well (to avoid "cannot write mode P as JPEG" error):
import urllib2
from django.core.files.base import ContentFile
from PIL import Image
from StringIO import StringIO
def download_im...
The name does not exist in the namespace error in XAML
... I have a simple MusicPlayer tutorial app I am using to learn WPF. I am converting a C# version of the tutorial to VB.NET step by step.
...
How to get the selected index of a RadioGroup in Android
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You should be able to do something like this:
int radioButtonID = radioButtonGroup.getCheckedRadioButtonId();
View radioButton = radioButtonGroup.findViewById(radioButtonID);
int idx = radioButtonGroup.indexOfChild(radioButton);
If the RadioGroup contains other Views (...
How does comparison operator works with null int?
I am starting to learn nullable types and ran into following behavior.
4 Answers
4
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Is there a Java API that can create rich Word documents? [closed]
...ort documents that could be shared and further tweaked by end-users before converting them to PDF for final delivery and archival.
You can optionally produce documents in OpenOffice formats if you want users to use OpenOffice instead of MS-Office. In our case the users want to use MS-Office tool...
Case insensitive XPath contains() possible?
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wouldn't it just convert TEST to test and leave Test as it is?
– Muhammad Adeel Zahid
Feb 27 '13 at 19:10
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xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false...
xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false”(性能警告) 1>C: Program Files (x86) Microsoft Visual Studio 11.0 VC include xtree(1796): warning C4800: int: 将值强制为布尔值true或f...1>C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\inc...
Usage of protocols as array types and function parameters in swift
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You want to create a generic class, with a type constraint that requires the classes used with it conform to SomeProtocol, like this:
class SomeClass<T: SomeProtocol> {
typealias ElementType = T
var protocols = [ElementType]()
func addElement(element: ElementT...
Check if two unordered lists are equal [duplicate]
...ype for an unordered collection of (hashable) things, called a set. If you convert both lists to sets, the comparison will be unordered.
set(x) == set(y)
Documentation on set
EDIT: @mdwhatcott points out that you want to check for duplicates. set ignores these, so you need a similar data struc...