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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...g it (not even reinterpret_cast). It is important to note that modifying a formerly const value is only undefined if the original variable is const; if you use it to take the const off a reference to something that wasn't declared with const, it is safe. This can be useful when overloading member fu...
live output from subprocess command
I'm using a python script as a driver for a hydrodynamics code. When it comes time to run the simulation, I use subprocess.Popen to run the code, collect the output from stdout and stderr into a subprocess.PIPE --- then I can print (and save to a log-file) the output information, and check for ...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...st the tree of a commit (display the commit tree SHA1):
git show --pretty=format:%T 9ed4ff9ac204f20f826ddacc3f85ef7186d6cc14
4b825dc642cb6eb9a060e54bf8d69288fbee4904
If that commit, referencing an empty tree, is indeed your first commit, you can show that empty tree SHA1 with:
git log --pretty=f...
Replace comma with newline in sed on MacOS?
...
i was looking for replacing '.' period , and this was the solution i'm looking for :)
– Jonah
Nov 24 '15 at 17:32
1
...
Difference between jar and war in Java
...e simply zipped files
using the java jar tool. These files are
created for different purposes. Here
is the description of these files:
.jar files: The .jar files contain
libraries, resources and
accessories files like property files.
.war files: The war file contains
the web a...
In bash, how does one clear the current input?
...
Press Ctrl-U to delete everything before the cursor. The deleted command will be stored into a buffer. Press Ctrl-Y to paste the deleted command.
(Optional: Press End or Ctrl-E to jump to the end of the input first.)
Alternatively, press Ctrl-C to abort what y...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
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扩展App Inventor：具有多点触控和手势检测功能
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jQuery checkbox change and click event
...
Tested in JSFiddle and does what you're asking for.This approach has the added benefit of firing when a label associated with a checkbox is clicked.
Updated Answer:
$(document).ready(function() {
//set initial state.
$('#textbox1').val(this.checked);
$('#c...
Android: Clear the back stack
...
Try adding FLAG_ACTIVITY_NEW_TASK as described in the docs for FLAG_ACTIVITY_CLEAR_TOP:
This launch mode can also be used to
good effect in conjunction with
FLAG_ACTIVITY_NEW_TASK: if used to
start the root activity of a task, it
will bring any currently running
instanc...
AngularJS Directive Restrict A vs E
...creating a component that is in control of the template. The
common case for this is when you are creating a Domain-Specific
Language for parts of your template. Use an attribute when you are
decorating an existing element with new functionality.
Edit following comment on pitfalls for a comp...