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How to get position of a certain element in strings vector, to use it as an index in ints vector?
...{
//old_name_ not found
}
vector iterators behave in ways similar to array pointers; most of what you know about pointer arithmetic can be applied to vector iterators as well.
Starting with C++11 you can use std::distance in place of subtraction for both iterators and pointers:
ptrdiff_t pos...
How can I group data with an Angular filter?
... working with AngularJS > 1.1 as Promised are not unwrapped anymore for arrays. See the immigration notes
– Benny Bottema
Sep 3 '14 at 7:25
6
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simple explanation PHP OOP vs Procedural?
...., functions for doing basic string manipulation, functions for processing arrays, functions for file input/output, etc]
OOP is a special way of "chunking" Functions together into a "Class"
A Class is just another level of "chunking" code together so that you can treat it as a unified whole
A Class...
C++ where to initialize static const
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Only integral values (e.g., static const int ARRAYSIZE) are initialized in header file because they are usually used in class header to define something such as the size of an array. Non-integral values are initialized in implementation file.
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How can I make a WPF combo box have the width of its widest element in XAML?
... return;
EventHandler[] handler = {null}; // array usage prevents access to modified closure
handler[0] = new EventHandler(delegate
{
if (!AssociatedObject.IsDropDownOpen || AssociatedObject.ItemContainerGenerator.Status != Genera...
“unpacking” a tuple to call a matching function pointer
...le:
int main()
{
std::tuple<int, double, int*> t;
//or std::array<int, 3> t;
//or std::pair<int, double> t;
call(f, t);
}
DEMO
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How to execute IN() SQL queries with Spring's JDBCTemplate effectivly?
....goodsid FROM beiker_goods bg WHERE bg.goodsid IN (:goodsid)";
List ids = Arrays.asList(new Integer[]{12496,12497,12498,12499});
Map<String, List> paramMap = Collections.singletonMap("goodsid", ids);
NamedParameterJdbcTemplate template =
new NamedParameterJdbcTemplate(getJdbcTemplate().g...
How expensive is the lock statement?
...llections, I have developed spin locked collections of my own around list, array, dictionary and queue, as I needed little more control and sometimes some code running under spinlock. I can tell you, it is possible and allows to solve multiple scenarios TPL collections can not do and with great per...
Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
.... of 7 runs, 1000 loops each)
A column is basically a Series i.e a NumPy array, it can be indexed without any cost. For folks interested in how the underlying memory organization plays into execution speed here is a great Link on Speeding up Pandas:
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What do the &,
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These represent node references (*) and associative array merges (<<) that refer to a node labeled with an anchor (&) tag -- wikipedia
Try it out yourself online.
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