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Sell me on const correctness
... be changed,
It protects you from making accidental variable assignments, and
The compiler can optimize it. For instance, you are protected from
if( x = y ) // whoops, meant if( x == y )
At the same time, the compiler can generate more efficient code because it knows exactly what the state of...
How to run functions in parallel?
I researched first and couldn't find an answer to my question. I am trying to run multiple functions in parallel in Python.
...
How to use timeit module
I understand the concept of what timeit does but I am not sure how to implement it in my code.
14 Answers
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How to load program reading stdin and taking parameters in gdb?
Question cribbed from here .
Unfortunately I don't understand the solution and am not sure what to do beyond compiling with the -g option and running the command M-x gdb.
...
C++ Build Systems - What to use? [closed]
...looking at starting a new project in C++ - just in my own time initially - and I'm investigating the build systems that are available. It would appear that the answer is "Many, and they're all awful".
...
pypi UserWarning: Unknown distribution option: 'install_requires'
...upport install_requires. setuptools does, also distribute (its successor), and pip (which uses either) do. But you actually have to use them. I.e. call setuptools through the easy_install command or pip install.
Another way is to import setup from setuptools in your setup.py, but this not standard...
Command not found when using sudo
...file must have an executable permission bit set.
In order to fully understand Linux file permissions you can study the documentation for the chmod command. chmod, an abbreviation of change mode, is the command that is used to change the permission settings of a file.
To read the chmod documentatio...
Microsoft Excel mangles Diacritics in .csv files?
...F8 capable will read the bytes as some other encoding such as Windows-1252 and display the characters  at the start of the file.
There is a known bug where Excel, upon opening UTF8 CSV files via file association, assumes that they are in a single-byte encoding, disregarding the presence of th...
use Winmerge inside of Git to file diff
...inMergeU.exe" -e -u -dl "Local" -dr "Remote" "$1" "$2"
(see WinMerge Command-line options)
git difftool
will now launch WinMerge.
If you want git diff to launch WinMerge, just set:
set GIT_EXTERNAL_DIFF=winmerge.sh
But the real added value comes from the ability to use that same diff too...
Updating version numbers of modules in a multi-module Maven project
...Version=2.50.1-SNAPSHOT
It will adjust all pom versions, parent versions and dependency versions in a multi-module project.
If you made a mistake, do
mvn versions:revert
afterwards, or
mvn versions:commit
if you're happy with the results.
Note: this solution assumes that all modules use ...