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How to implement static class member functions in *.cpp file?
...include "helper.hxx"
A::foo() {
helper::fn1();
helper::fn2();
}
To know more about how c++ handles static functions visit: Are static member functions in c++ copied in multiple translation units?
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How do I specify unique constraint for multiple columns in MySQL?
...mple:
PRODUCT_NAME, PRODUCT_VERSION
'glass', null
'glass', null
'wine', 1
Now if you try to insert ('wine' 1) again it will report a constraint violation
Hope this helps
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What does PermGen actually stand for?
I know what PermGen is, what it's used for, why it fails, how to increase it etc.
8 Answers
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Java / Android - How to print out a full stack trace?
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I fast did now a recursive function which will iterate the throwable and throwable.getCause().
That's because every "throwable.getCause()" return to you a new exception message with some lines repeated and new lines.
So the the concept ...
Sending Arguments To Background Worker?
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I didnt know what IMO meant, I thought it was a C# thing. I googled "C# IMO" and landed here and got the answer...lol quantnet.com/threads/c-c-vba-or-java.11433
– electricalbah
Mar 6 '14 at 7:04...
java: ArrayList - how can i check if an index exists?
...uff. but the next time at that index, my index will still be index = 0 and now I am re-initializing that element in the list when I was supposed to be doing stuff. The 1st thought is to && a second condition like list.get(index) == null but that not working is why there are questions like th...
Better way to get type of a Javascript variable?
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Ah, I'd forgotten about that - thank you, it's now included.
– Vix
Feb 26 '16 at 9:20
1
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How to disable “Save workspace image?” prompt in R?
... this to ~/.Rprofile:
qs <- function(save="yes") { q(save=save)}
So now q() quits without saving (or prompting) but qs() will save and quit (also without prompting)
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How to set Python's default version to 3.x on OS X?
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This way, your alias will work across shells.
With this, python command now invokes python3. If you want to invoke the "original" python (that refers to python2) on occasion, you can use command python, which will leaving the alias untouched, and works in all shells.
If you launch interpreters m...
Heap vs Binary Search Tree (BST)
...s for individual inserts.
Interpretation:
heap is still constant, but now we see in more detail that there are a few lines, and each higher line is more sparse.
This must correspond to memory access latencies are done for higher and higher inserts.
TODO I can't really interpret the BST fully o...