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Why is `std::move` named `std::move`?
The C++11 std::move(x) function doesn't really move anything at all. It is just a cast to r-value. Why was this done? Isn't this misleading?
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How to populate/instantiate a C# array with a single value?
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Don't know of a framework method but you could write a quick helper to do it for you.
public static void Populate<T>(this T[] arr, T value ) {
for ( int i = 0; i < arr.Length;i++ ) {
arr[i] = value;
}
}
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std::back_inserter for a std::set?
I guess this is a simple question. I need to do something like this:
2 Answers
2
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Python using enumerate inside list comprehension
...tory to be a tuple. Any expression using i and j that returns a value will do
– Alvaro
Jul 26 '14 at 15:02
use of enum...
Behaviour for significant change location API when terminated/suspended?
This is the section from the CLLocationManager documentation describing the app behavior with startMonitoringSignificantLocationChanges :
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How to see full symlink path
...avors, but readlink should be.
readlink -f symlinkName
The above should do the trick.
Alternatively, if you don't have either of the above installed, you can do the following if you have python 2.6 (or later) installed
python -c 'import os.path; print(os.path.realpath("symlinkName"))'
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How do I list all files of a directory?
...les and directories.
If you want just files, you could either filter this down using os.path:
from os import listdir
from os.path import isfile, join
onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]
or you could use os.walk() which will yield two lists for each directory it vi...
How to get a list of column names on Sqlite3 database?
I want to migrate my iPhone app to a new database version. Since I don't have some version saved, I need to check if certain column names exist.
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How to call erase with a reverse iterator
I am trying to do something like this:
11 Answers
11
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git visual diff between branches
...for seeing a visual diff between two files that are checked into git:
How do I view 'git diff' output with a visual diff program?
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