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How to find difference between two Joda-Time DateTimes in minutes
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answered Oct 12 '12 at 4:01
alfredadayalfredaday
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Left-pad printf with spaces
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If you want the word "Hello" to print in a column that's 40 characters wide, with spaces padding the left, use the following.
char *ptr = "Hello";
printf("%40s\n", ptr);
That will give you 35 spaces, then the word "Hello". This is how you format stuff when you know how wide you ...
Is it possible to assign numeric value to an enum in Java?
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public enum EXIT_CODE {
A(104), B(203);
private int numVal;
EXIT_CODE(int numVal) {
this.numVal = numVal;
}
public int getNumVal() {
return numVal;
}
}
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Create a tar.xz in one command
...member to man tar :)
tar cfJ <archive.tar.xz> <files>
Edit 2015-08-10:
If you're passing the arguments to tar with dashes (ex: tar -cf as opposed to tar cf), then the -f option must come last, since it specifies the filename (thanks to @A-B-B for pointing that out!). In that case, th...
How to check if std::map contains a key without doing insert?
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310
Use my_map.count( key ); it can only return 0 or 1, which is essentially the Boolean result you ...
If string is empty then return some default value
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David PhillipsDavid Phillips
9,40544 gold badges3636 silver badges5151 bronze badges
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Sass and combined child selector
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edited Apr 30 '15 at 22:58
Continuity8
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Difference between CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_LIST_DIR
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140
The variables CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_LIST_DIR may refer to different directo...
How do you list all triggers in a MySQL database?
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from information_schema.triggers
You can do this from version 5.0.10 onwards.
More information about the TRIGGERS table is here.
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Instantiating object of type parameter
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answered Nov 18 '08 at 20:24
ericksonerickson
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