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Does making a struct volatile make all its members volatile?
...ay to look at the original question):
Does making a struct const make all its members const?
If I have:
struct whatever { int data; };
const whatever test;
Will test.data be const too?
My answer is : Yes. If you declare an object of type whatever with const then all its members will be const ...
Can I mix MySQL APIs in PHP?
...r. They are separate APIs and the resources they create are incompatible with one another.
There is a mysqli_close, though.
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How would you implement an LRU cache in Java?
...st the SDK (learning by doing). Given that the cache will be used in a multithreaded environment, which datastructures would you use? I've already implemented one using LinkedHashMap and Collections#synchronizedMap , but I'm curious if any of the new concurrent collections would be better candida...
Horizontal ListView in Android?
Is it possible to make the ListView horizontally? I have done this using a gallery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizo...
How to get last N records with activerecord?
With :limit in query, I will get first N records. What is the easiest way to get last N records?
14 Answers
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IF statement: how to leave cell blank if condition is false (“” does not work)
I would like to write an IF statement, where the cell is left blank if the condition is FALSE.
Note that, if the following formula is entered in C1 ( for which the condition is false ) for example:
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How do I trap ctrl-c (SIGINT) in a C# console app
...in a C# console application so that I can carry out some cleanups before exiting. What is the best way of doing this?
7 Ans...
Make $JAVA_HOME easily changable in Ubuntu [closed]
In Ubuntu, I'd like to switch my JAVA_HOME environment variable back and forth between Java 5 and 6.
8 Answers
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CSS: Change image src on img:hover
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With only html and css, its not posible to change the src of image. If you do replace the img tag with div tag, then you might be able to change the image that is set as the background as like
div {
background: url('http...
How do I send a POST request with PHP?
...ctually I want to read the contents that come after the search query, when it is done. The problem is that the URL only accepts POST methods, and it does not take any action with GET method...
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