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For every character in string
...loop (it's from C++11, already supported in recent releases of GCC, clang, and the VC11 beta):
std::string str = ???;
for(char& c : str) {
do_things_with(c);
}
Looping through the characters of a std::string with iterators:
std::string str = ???;
for(std::string::iterator it = str.begin()...
Inheriting from a template class in c++
...mplate class Area , which has a member variable T area , a T getArea() and a void setArea(T) member functions.
6 Answ...
Use of def, val, and var in scala
... new Person("Kumar",12) . If I use var or val the output is 20 . I understand the default is val in scala. This:
6 Answers...
How to fix error “Updating Maven Project”. Unsupported IClasspathEntry kind=4?
...question in the package explorer pane, and then choosing 'Configure'-> 'Convert to Maven Project')
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LINQ Select Distinct with Anonymous Types
...
Have a read through K. Scott Allen's excellent post here:
And Equality for All ... Anonymous Types
The short answer (and I quote):
Turns out the C# compiler overrides
Equals and GetHashCode for anonymous
types. The implementation of the two
overridden methods uses all the...
C# 'is' operator performance
... answered Mar 26 '09 at 16:09
Andrew HareAndrew Hare
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Is SQL or even TSQL Turing Complete?
...e programming languages, so that's kinda cheating).
In this set of slides Andrew Gierth proves that with CTE and Windowing SQL is Turing Complete, by constructing a cyclic tag system, which has been proved to be Turing Complete. The CTE feature is the important part however -- it allows you to crea...
How to assert two list contain the same elements in Python? [duplicate]
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If there are only unique values in list Converting them to set using set(l1)& set(2) & asserting using assertSetEqual(l1, l2) also helps.
– Abhijeet
Jun 25 '18 at 8:34
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Extracting just Month and Year separately from Pandas Datetime column
...ore. Using df.my_date_column.astype('datetime64[M]'), as in @Juan's answer converts to dates representing the first day of each month.
– Nickolay
May 26 '18 at 19:52
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Saving a Numpy array as an image
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Be careful when converting to jpg since it is lossy and so you may not be able to recover the exact data used to generate the image.
– Feanil
Dec 20 '12 at 15:20
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