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When should std::move be used on a function return value? [duplicate]
...e object to be copied is designated by an lvalue, overload
resolution to select the constructor for the copy is first performed as
if the object were designated by an rvalue.
return foo; is a case of NRVO, so copy elision is permitted. foo is an lvalue. So the constructor selected for the "co...
Really Cheap Command-Line Option Parsing in Ruby
...y chairs are in the classroom", :default => 1
p.option :room_number, "select room number", :default => 2, :value_in_set => [1,2,3,4]
end.process!
Calling the script with -h or --help will print
Usage: micro-optparse-example [options]
-v, --[no-]verbose turn on verbose...
How much space can your BitBucket account have?
... actually mean? What's the alternative - gitignore the PDF directories and selectively rsync them? Sounds like a lot more hassle than just including the PDFs in the repository. And "Use SVG instead of PDF" is just not a sensible suggestion.
– Bobby Jack
Sep 6 '...
When should you use 'friend' in C++?
...te, the C++ FAQ mentions that friend enhances encapsulation. friend grants selective access to members, just like protected does. Any fine-grained control is better than granting public access. Other languages define selective access mechanisms too, consider C#'s internal. Most negative criticism ar...
Decimal precision and scale in EF Code First
...mp; t.Namespace == "YOURMODELNAMESPACE"
select t)
{
foreach (var propAttr in classType.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(p => p.GetCustomAttribute<DecimalPrecisionAttribute>() != null).Select(
p ...
How to keep the local file or the remote file during merge using Git and the command line?
...his approach seems more straightforward, avoiding the need to individually select each file:
# keep remote files
git merge --strategy-option theirs
# keep local files
git merge --strategy-option ours
or
# keep remote files
git pull -Xtheirs
# keep local files
git pull -Xours
Copied directly fr...
iTerm 2: How to set keyboard shortcuts to jump to beginning/end of line?
....
1. Simple solution (recommended)
Open Preferences
Click "Profile" tab
Select a profile in the list on the left (eg "Default") and click "Keys" tab
Click the "Presets" downdown and select "Natural Text Editing"
2. Mapping keys manually (Advanced)
If you don't want to use the "Natural Text...
How to cherry pick a range of commits and merge into another branch?
...
@aug -m is supposed to handle them for you, by selecting the mainline referenced by the -m parameter you have chosen for this cherry-picking.
– VonC
Jul 14 '16 at 19:20
...
OPTION (RECOMPILE) is Always Faster; Why?
...y estimates for applying both restrictions and a poor execution plan being selected. The fix in this case would be to create a statistics object linking the two columns, which is not an expensive operation.
share
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What is a software framework? [closed]
...an abstraction in which common code providing generic functionality can be selectively overridden or specialized by user code providing specific functionality. Frameworks are a special case of software libraries in that they are reusable abstractions of code wrapped in a well-defined Application pro...
