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How do I measure execution time of a command on the Windows command line?
...15 2009
Elapsed Time: 0:00:00.000
Process Time: 0:00:00.015
System Calls: 731
Context Switches: 299
Page Faults: 515
Bytes Read: 0
Bytes Written: 0
Bytes Other: 298
You can get TimeIt in the Windows 2003 Resource Kit. It's not available for direct download from the Mi...
How to make a class property? [duplicate]
...baz.bar == 50
assert foo.bar == 50
The setter didn't work at the time we call Bar.bar, because we are calling
TypeOfBar.bar.__set__, which is not Bar.bar.__set__.
Adding a metaclass definition solves this:
class ClassPropertyMetaClass(type):
def __setattr__(self, key, value):
if key...
Copying data from one SQLite database to another
... databases with common data but with different purposes and I wanted to avoid reinserting data, so I was wondering if it was possible to copy a whole table from one database to another?
...
Reading an Excel file in python using pandas
...
Close: first you call ExcelFile, but then you call the .parse method and pass it the sheet name.
>>> xl = pd.ExcelFile("dummydata.xlsx")
>>> xl.sheet_names
[u'Sheet1', u'Sheet2', u'Sheet3']
>>> df = xl.parse("Sheet...
What is meant with “const” at end of function declaration? [duplicate]
...) results in a function like int Foo_Bar(Foo* this, int random_arg), and a call such as Foo f; f.Bar(4) will internally correspond to something like Foo f; Foo_Bar(&f, 4). Now adding the const at the end (int Foo::Bar(int random_arg) const) can then be understood as a declaration with a const th...
How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
...ger=, Logger.new('/dev/null'))
Rails::Rack::Logger.class_eval do
def call_with_quiet_assets(env)
previous_level = Rails.logger.level
Rails.logger.level = Logger::ERROR if env['PATH_INFO'] =~ %r{^/assets/}
call_without_quiet_assets(env)
ensure
Rails.logger.level = pr...
Passing data to a closure in Laravel 4
...
If you instantiated the $team variable outside of the function, then it's not in the functions scope. Use the use keyword.
$team = Team::find($id);
Mail::send('emails.report', $data, function($m) use ($team)
{
$m->to($team->senior->email, $team->senior...
What is the JUnit XML format specification that Hudson supports?
...
I did a similar thing a few months ago, and it turned out this simple format was enough for Hudson to accept it as a test protocol:
<testsuite tests="3">
<testcase classname="foo1" name="ASuccessfulTest"/>
&...
How to know what the 'errno' means?
When calling execl(...) , I get an errno=2 . What does it mean? How can I know the meaning of this errno ?
15 Answers
...
Is there a performance difference between i++ and ++i in C++?
...
However, if i is an instance of a C++ class, then i++ and ++i are making calls to one of the operator++ functions. Here's a standard pair of these functions:
Foo& Foo::operator++() // called for ++i
{
this->data += 1;
return *this;
}
Foo Foo::operator++(int ignored_dummy_value) ...