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What are the rules for calling the superclass constructor?
...:
class A : public B
{
public:
A(int a, int b, int c);
private:
int b_, c_;
};
Then, assuming B has a constructor which takes an int, A's constructor may look like this:
A::A(int a, int b, int c)
: B(a), b_(b), c_(c) // initialization list
{
// do something
}
As you can see, the con...
Iterating Over Dictionary Key Values Corresponding to List in Python
...ict (league) itself, or league.keys():
for team in league.keys():
runs_scored, runs_allowed = map(float, league[team])
You can also iterate over both the keys and the values at once by iterating over league.items():
for team, runs in league.items():
runs_scored, runs_allowed = map(float,...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...kens=1-2 delims=/:" %%a in ('time /t') do (set mytime=%%a%%b)
echo %mydate%_%mytime%
If you prefer the time in 24 hour/military format, you can replace the second FOR line with this:
For /f "tokens=1-2 delims=/:" %%a in ("%TIME%") do (set mytime=%%a%%b)
C:> .\date.bat
2008-10-14_0642
...
Loop through properties in JavaScript object with Lodash
...
var value = myObject.options[key];
}
}
Edit: the accepted answer (_.forOwn()) should be https://stackoverflow.com/a/21311045/528262
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fol...
Swift: #warning equivalent
...mple all at the same time.
// Description of what you need to fix
var FIX_ME__????????????: AnyObject
Throws a warning that 'FIX_ME__????????????' was never used.
You can add emoticons to the variable name if you like... I often use ???? and ????, for something that really needs fixing I'd eve...
How to initialize an array in one step using Ruby?
...rray = [ '1', '2', '3' ]
You can also use a range:
array = ('1'..'3').to_a # parentheses are required
# or
array = *('1'..'3') # parentheses not required, but included for clarity
For arrays of whitespace-delimited strings, you can use Percent String syntax:
array = %w[ 1 2 3 ]
You can...
How do I pass a variable by reference?
...le type
Let's try to modify the list that was passed to a method:
def try_to_change_list_contents(the_list):
print('got', the_list)
the_list.append('four')
print('changed to', the_list)
outer_list = ['one', 'two', 'three']
print('before, outer_list =', outer_list)
try_to_change_list_...
Is inline assembly language slower than native C++ code?
... it):
calcuAsm: # @calcuAsm
.Ltmp0:
.cfi_startproc
# BB#0:
testl %edx, %edx
jle .LBB0_2
.align 16, 0x90
.LBB0_1: # %.lr.ph
# =>This Inner Loop Header: Depth=1
imull $1000...
Does Dart support enumerations?
...old approach before 1.8:
class Fruit {
static const APPLE = const Fruit._(0);
static const BANANA = const Fruit._(1);
static get values => [APPLE, BANANA];
final int value;
const Fruit._(this.value);
}
Those static constants within the class are compile time constants, and this cl...
Sending HTML email using Python
...message to send - here it is sent as one string.
s.sendmail(me, you, msg.as_string())
s.quit()
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