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How to make a variadic macro (variable number of arguments)
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I don't think C99 requires the ## before VA_ARGS. That might just be VC++.
– Chris Lutz
Mar 25 '09 at 2:18
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Can I export a variable to the environment from a bash script without sourcing it?
...can be quite useful, though it's inconvenient for interactive use since it doesn't give you the settings in your current shell (with all the other settings and history you've built up).
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How do I efficiently iterate over each entry in a Java Map?
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If you do that, then it won't work as Entry is a nested Class in Map. java.sun.com/javase/6/docs/api/java/util/Map.html
– ScArcher2
Mar 22 '10 at 13:30
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How do I get a file's directory using the File object?
...you want.
Additionally, if you want to find out whether the original File does exist and is a directory, then exists() and isDirectory() are what you're after.
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How do you make a deep copy of an object?
...sures everything is a brand new reference.
Here's an article about how to do this efficiently.
Caveats: It's possible for classes to override serialization such that new instances are not created, e.g. for singletons. Also this of course doesn't work if your classes aren't Serializable.
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How do I remove lines between ListViews on Android?
...etDividerHeight(0);
developer.android.com # ListView
Or, if you want to do it in XML:
android:divider="@null"
android:dividerHeight="0dp"
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How would one write object-oriented code in C? [closed]
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Since you're talking about polymorphism then yes, you can, we were doing that sort of stuff years before C++ came about.
Basically you use a struct to hold both the data and a list of function pointers to point to the relevant functions for that data.
So, in a communications class, you wou...
Editing the git commit message in GitHub
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I could also do git pull and then git push and it worked. But apparently there is no online way.
– PNS
May 23 '12 at 21:57
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How do I pass a class as a parameter in Java?
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and how do i fire default constructor or some methods in that class ?
– user562350
Feb 2 '11 at 10:04
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How to delete and replace last line in the terminal using bash?
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echo a carriage return with \r
seq 1 1000000 | while read i; do echo -en "\r$i"; done
from man echo:
-n do not output the trailing newline
-e enable interpretation of backslash escapes
\r carriage return
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