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Is Meyers' implementation of the Singleton pattern thread safe?
...rently while the variable is being initialized, the concurrent execution shall wait for completion of the initialization.
GCC and VS support for the feature (Dynamic Initialization and Destruction with Concurrency, also known as Magic Statics on MSDN) is as follows:
Visual Studio: supported sinc...
Difference between .tagName and .nodeName
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The tagName property is meant specifically for element nodes (type 1 nodes) to get the type of element.
There are several other types of nodes as well (comment, attribute, text, etc.). To get the name of any of the various node types, you can use the nodeName p...
How to remove the arrow from a select element in Firefox
... have done nothing.
I've come up with a simple workaround.
This essentially strips all formatting of the select box in firefox and wraps a span element around the select box with your custom style, but should only apply to firefox.
Say this is your select menu:
<select class='css-select'&...
Align elements side by side
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@JCOC611: Ah, so clear usually follows when you want a momentary float ability? Makes sense. Thanks for the lesson. ;-)
– Brad Christie
Feb 9 '11 at 2:47
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What does LayoutInflater in Android do?
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Ideally you should first test convertView to see if you can recycle a resource, so View view = convertView; if (view == null) { view = mInflater.... }
– Jannie Theunissen
Mar 22 '13 at 12:3...
How to branch with TortoiseHG
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As shown in the docs, all you should need to do is just click on the branch: default button near the top of the commit dialog, and change to a new branch name.
share
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CFLAGS vs CPPFLAGS
...pands the variables. As both CPPFLAGS and CFLAGS are used in the compiler call, which you use to define include paths is a matter of personal taste. For instance if foo.c is a file in the current directory
make foo.o CPPFLAGS="-I/usr/include"
make foo.o CFLAGS="-I/usr/include"
will both call your...
What makes JNI calls slow?
I know that 'crossing boundaries' when making a JNI call in Java is slow.
3 Answers
3
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Accessing dict_keys element by index in Python3
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Call list() on the dictionary instead:
keys = list(test)
In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dicti...
How to prevent text in a table cell from wrapping
...t:
Use nowrap attribute inside the "td" tag:
<th nowrap="nowrap">Really long column heading</th>
Use non-breakable spaces between your words:
<th>Really&nbsp;long&nbsp;column&nbsp;heading</th>
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