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How can I convert a std::string to int?
...umbers:
long stol(string), float stof(string), double stod(string),...
see http://en.cppreference.com/w/cpp/string/basic_string/stol
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Is an anchor tag without the href attribute safe?
...;
Look for "placeholder hyperlink" on the w3c anchor tag reference page: https://www.w3.org/TR/2016/REC-html51-20161101/textlevel-semantics.html#the-a-element.
And it is also mentioned on the wiki here:
https://www.w3.org/wiki/Elements/a
A placeholder link is for cases where you want to use an ...
hadoop No FileSystem for scheme: file
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Actually, I just added this maven dependency http://mvnrepository.com/artifact/org.apache.hadoop/hadoop-hdfs/2.2.0 to maven and problem solved.
– B.Mr.W.
Jul 16 '14 at 19:48
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Get margin of a View
...LayoutParams lp = (ViewGroup.MarginLayoutParams) view.getLayoutParams();
http://developer.android.com/reference/android/view/ViewGroup.MarginLayoutParams.html
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Disable mouse scroll wheel zoom on embedded Google Maps
...ay" onClick="style.pointerEvents='none'"></div>
<iframe src="https://mapsengine.google.com/map/embed?mid=some_map_id" width="640" height="480"></iframe>
</html>
In my CSS i created the class:
.overlay {
background:transparent;
position:relative;
width:640px...
Add and Remove Views in Android Dynamically?
...e feature described in this question. Here is my solution and source code: https://github.com/laoyang/android-dynamic-views. And you can see the video demo in action here: http://www.youtube.com/watch?v=4HeqyG6FDhQ
Layout
Basically you'll two xml layout files:
A horizontal LinearLayout row view ...
Convert RGBA PNG to RGB with PIL
...mage object
dst -- PIL RGBA Image object
The algorithm comes from http://en.wikipedia.org/wiki/Alpha_compositing
'''
# http://stackoverflow.com/a/3375291/190597
# http://stackoverflow.com/a/9166671/190597
src = np.asarray(src)
dst = np.asarray(dst)
out = np.empty(src...
how to check if a form is valid programmatically using jQuery Validation Plugin
...form with a couple of buttons and I'm using jQuery Validation Plugin from http://jquery.bassistance.de/validate/ . I just want to know if there is any way I can check if the form is considered in valid state by jquery validation plugin from anywhere in my javascript code.
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How many threads can a Java VM support?
...d 6500 Threads (in Java), the whole machine started to have problems and become unstable.
My experience shows that Java (recent versions) can happily consume as many Threads as the computer itself can host without problems.
Of course, you have to have enough RAM and you have to have started Java w...
Android - Start service on boot
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="pack.saltriver" android:versionCode="1" android:versionName="1.0">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<a...