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How do I make a branch point at a specific commit? [duplicate]
...ttach to master
git checkout master
Be aware, though, that any explicit manipulation of where a branch points has the potential to leave behind commits that are no longer reachable by any branches, and thus become object to garbage collection. So, think before you type git branch -f!
This metho...
Immutable vs Unmodifiable collection
...
@savanibharat: that depends on whether there's any code path that can still modify list. If something can later call list.add(10) then coll will reflect that change, so no, I wouldn't call it immutable.
– Jo...
Is there a standard sign function (signum, sgn) in C/C++?
I want a function that returns -1 for negative numbers and +1 for positive numbers.
http://en.wikipedia.org/wiki/Sign_function
It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere.
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How to automatically select all text on focus in WPF TextBox?
If I call SelectAll from a GotFocus event handler, it doesn't work with the mouse - the selection disappears as soon as mouse is released.
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Where does Scala look for implicits?
...d imports
Same scope in other files
Now look at associated types in
Companion objects of a type
Implicit scope of an argument's type (2.9.1)
Implicit scope of type arguments (2.8.0)
Outer objects for nested types
Other dimensions
Let's give some examples for them:
Implicits Defined in Current...
Difference between “!==” and “==!” [closed]
...ll be parsed to "a" == !" ". Negation of a string is covered by casting, meaning any string but "0" and " " is, when casted, true.
Thus, the expression "a" == !" " will get transferred:
"a" == !" "
"a" == !false
"a" == true
And, as string "a" is not the same as bool true, this evaluates the who...
How do CUDA blocks/warps/threads map onto CUDA cores?
...cle. So in theory if we have 48 threads in the same block, they will be organized into 3 half-warps and execute in parallel on the 48 cores. Am I right?
– Daedalus
May 6 '12 at 12:42
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How can I recall the argument of the previous bash command?
...ch is the hard part, but look under 'HISTORY EXPANSION' and 'Commands for Manipulating the History' in particular. For GNU readline related stuff (which is most key binding related stuff outside of bash): tiswww.cwru.edu/php/chet/readline/rltop.html#TOCDocumentation
– Chris
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How can I truncate a datetime in SQL Server?
...way the performance difference between "correct" way and the "fast" way, meaning you should now favor the former.
In either case, you want to write your queries to avoid the need to do this in the first place. It's very rare that you should do this work on the database.
In most places, the data...
What is Haskell used for in the real world? [closed]
...ks. If you are always allocating new objects, rather than
destructively manipulating existing ones, the locking can be hidden in
the allocation and GarbageCollection system.
Apart from this Haskell has its own advantages such as:
Clear, intuitive syntax inspired by mathematical notation....