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Compile time string hashing
...ce c1c2...ck can
only contain characters from the basic source character set. —end note]
Combine that with constexpr and we should have compile time string processing.
update: i overlooked that i was reading the wrong paragraph, this form is allowed for user-defined-integer-literals and -flo...
Synchronizing a local Git repository with a remote one
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These steps will do it:
git reset --hard HEAD
git clean -f -x -d -n
then without -n
This will take care of all local changes. Now the commits...
git status
and note the line such as:
Your branch is ahead of 'xxxx' by N commits.
Take a note of num...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
...t is the name of the default virtual machine (if you're not using multi-VM setups).
If your VM has somehow become disassociated, what you can do is do VBoxManage list vms which will list every VM that VirtualBox knows about by its name and UUID. Then manually create a .vagrant file in the same dir...
Least common multiple for 3 or more numbers
How do you calculate the least common multiple of multiple numbers?
31 Answers
31
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Retrieve the commit log for a specific line in a file?
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You can get a set of commits by using pick-axe.
git log -S'the line from your file' -- path/to/your/file.txt
This will give you all of the commits that affected that text in that file. If the file was renamed at some point, you can add ...
Does Haskell require a garbage collector?
...tic memory management is necessary because manual memory management is unsafe; dynamic memory management is necessary because for some programs, the lifetime of an object can only be determined at runtime.
For example, consider the following program:
main = loop (Just [1..1000]) where
loop :: M...
List comprehension vs map
Is there a reason to prefer using map() over list comprehension or vice versa? Is either of them generally more efficient or considered generally more pythonic than the other?
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What is “lifting” in Haskell?
...nction into a corresponding function within another (usually more general) setting
take a look at http://haskell.org/haskellwiki/Lifting
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
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Use the set -o noclobber option and attempt to overwrite a common file.
A short example
if ! (set -o noclobber ; echo > /tmp/global.lock) ; then
exit 1 # the global.lock already exists
fi
# ... remainder of script ...
A lo...
What are Scala context and view bounds?
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