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Can I call memcpy() and memmove() with “number of bytes” set to zero?
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From the C99 standard (7.21.1/2):
Where an argument declared as size_t n specifies the length of the array for a
function, n can have the value zero on a call to that function. Unless explicitly stated
otherwise in the description o...
Python ValueError: too many values to unpack [duplicate]
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self.materials is a dict and by default you are iterating over just the keys (which are strings).
Since self.materials has more than two keys*, they can't be unpacked into the tuple "k, m", hence the ValueError exception is raised.
In Python 2.x, t...
-didSelectRowAtIndexPath: not being called
...I Builder. That doesn't work. When I deleted the UIViewController widget and dropped a UITableViewController in its place, everything worked.
– Matt Pfefferle
Nov 1 '08 at 20:51
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How to clean project cache in Intellij idea like Eclipse's clean?
...for your installed version. The location of this folder depends on your OS and version installed.
Windows Vista, 7, 8, 10
<SYSTEM DRIVE>\Users\<USER ACCOUNT NAME>\.<PRODUCT><VERSION>
Linux/Unix
~/.<PRODUCT><VERSION>
Mac OS
~/Library/Caches/<PRODUCT><V...
How to force garbage collection in Java?
...ollection in Java, even if it is tricky to do? I know about System.gc(); and Runtime.gc(); but they only suggest to do GC. How can I force GC?
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Changing the resolution of a VNC session in linux [closed]
...eas if I set it to run at 1600x1200 it doesn't fit on the laptop's screen, and I have to scroll it all the time.
15 Answers...
SVN how to resolve new tree conflicts when file is added on two branches
...f branches (using SVN 1.6.1) where a file has been added on both branches (and then worked on in those separate branches) I'm getting one of the new tree conflicts:
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How to undo a git pull?
...s.
To the commenter
ORIG_HEAD is previous state of HEAD, set by commands that have possibly dangerous behavior, to be easy to revert them. It is less useful now that Git has reflog: HEAD@{1} is roughly equivalent to ORIG_HEAD (HEAD@{1} is always last value of HEAD, ORIG_HEAD is last value of ...
How to un-commit last un-pushed git commit without losing the changes
...e to dig it from reflog in case you screw up :) )
revert commit normally and push
git checkout master
git revert a8172f36 #hash of the commit you want to destroy
# this introduces a new commit (say, it's hash is 86b48ba) which removes changes, introduced in the commit in question (but those chan...
What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
I just want to understand following line of code in shell. It is used to get the current working directory. I am aware that $(variable) name return the value inside the variable name, but what is $(command) supposed to return? Does it return the value after executing the command? In that case, w...