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What is the correct way of using C++11's range-based for?
...modifying them in place.
Observing the elements
Let's consider a simple example:
vector<int> v = {1, 3, 5, 7, 9};
for (auto x : v)
cout << x << ' ';
The above code prints the elements (ints) in the vector:
1 3 5 7 9
Now consider another case, in which the vector elem...
Sorting a vector of custom objects
...
A simple example using std::sort
struct MyStruct
{
int key;
std::string stringValue;
MyStruct(int k, const std::string& s) : key(k), stringValue(s) {}
};
struct less_than_key
{
inline bool operator() (const MyStr...
R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?
... edited Jan 26 '18 at 13:02
zx8754
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answered Apr 21 '11 at 2:40
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What's the best way to get the last element of an array without deleting it?
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Swapping column values in MySQL
I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
how to draw smooth curve through N points using javascript HTML5 canvas?
...control points. One solution is to "curve to" the midpoints between the next 2 subsequent sample points. Joining the curves using these new interpolated points gives a smooth transition at the end points (what is an end point for one iteration becomes a control point for the next iteration.) In o...
Regex expressions in Java, \\s vs. \\s+
What's the difference between the following two expressions?
4 Answers
4
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Why does @foo.setter in Python not work for me?
...r class as MyClass(object):
class testDec(object):
@property
def x(self):
print 'called getter'
return self._x
@x.setter
def x(self, value):
print 'called setter'
self._x = value
It works:
>>> k = testDec()
>>> k.x
called gett...
How to use orderby with 2 fields in linq? [duplicate]
...
MyList.OrderBy(x => x.StartDate).ThenByDescending(x => x.EndDate);
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