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C++, What does the colon after a constructor mean? [duplicate]
... {
m_val = val;
}
private:
const int& m_val;
};
By the C++ specification, this is illegal. We cannot change the value of a const variable in the constructor, because it is marked as const. So you can use the initialisation list:
class Demo
{
Demo(int& val) : m_val...
Convert a list to a string in C#
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You can replace "," with what you want to split the elements in the list by.
Edit: As mention in the comments you could also do
string combindedString = string.Join( ",", myList);
Reference:
Join<T>(String, IEnumerable<T>)
Concatenates the members of a collection, using the speci...
How do I make a branch point at a specific commit? [duplicate]
...nts has the potential to leave behind commits that are no longer reachable by any branches, and thus become object to garbage collection. So, think before you type git branch -f!
This method is better than the git reset --hard approach, as it does not destroy anything in the index or working dire...
Maven package/install without test (skip tests)
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@EmmanuelBourg That can be remedied by following directions in this example maven.apache.org/plugins/maven-surefire-plugin/examples/…
– smp7d
Sep 18 '12 at 15:42
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How to perform element-wise multiplication of two lists?
... to perform an element wise multiplication, to multiply two lists together by value in Python, like we can do it in Matlab.
...
How to hide the “back” button in UINavigationController?
...troller:newVC animated:YES];
When the code finishes, the view controlled by newVC should now be showing, and no back button should be visible.
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How to check if array element exists or not in javascript?
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This in my opinion is the best answer, by now IE 7 is not mainteined any more so it's not a problem. Although I will suggest to use the triple equals if(myArray.indexOf(searchTerm) === -1)
– Mauro Gava
Sep 1 '16 at 2:49
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How do the post increment (i++) and pre increment (++i) operators work in Java?
...)); // a is 8 at the end
The parenteses I used above are implicitly used by Java. If you look at the terms this way you can easily see, that they are both the same as they are commutative.
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Is there shorthand for returning a default value if None in Python? [duplicate]
...tr(obj, "value", "default"). The trade off is that the later is not caught by many auto-refactor tools.
– brent.payne
Apr 30 '13 at 23:49
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Unable to load Private Key. (PEM routines:PEM_read_bio:no start line:pem_lib.c:648:Expecting: ANY PR
... Oh my good God! THANK YOU! I would've never figured that out by trial and error, fixed the issue for me!
– Mikael Dyreborg Hansen
Apr 15 at 12:48
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