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Is there a __CLASS__ macro in C++?
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edited Nov 3 '09 at 11:55
answered Nov 3 '09 at 11:44
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How does `is_base_of` work?
...ted to D* and B*. It's a user defined conversion sequence as described by 13.3.3.1.2 from Host<B, D> to D* and B* respectively. For finding conversion functions that can convert the class, the following candidate functions are synthesized for the first check function according to 13.3.1.5/1
D...
What does static_assert do, and what would you use it for?
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83
Off the top of my head...
#include "SomeLibrary.h"
static_assert(SomeLibrary::Version > 2, ...
How to merge dictionaries of dictionaries?
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return a
# works
print(merge({1:{"a":"A"},2:{"b":"B"}}, {2:{"c":"C"},3:{"d":"D"}}))
# has conflict
merge({1:{"a":"A"},2:{"b":"B"}}, {1:{"a":"A"},2:{"b":"C"}})
note that this mutates a - the contents of b are added to a (which is also returned). if you want to keep a you could call it like m...
Verify version of rabbitmq
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answered Sep 29 '11 at 13:28
MarekMarek
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How to find a hash key containing a matching value
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answered Sep 25 '10 at 13:43
Daniel VandersluisDaniel Vandersluis
79.6k1717 gold badges153153 silver badges149149 bronze badges
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What's the algorithm to calculate aspect ratio?
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203
I gather you're looking for an usable aspect ratio integer:integer solution like 16:9 rather tha...
Add single element to array in numpy
... khaverim
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answered Sep 7 '11 at 11:21
steabertsteabert
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SQL Server : Columns to Rows
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indicatorvalue
for indicatorname in (Indicator1, Indicator2, Indicator3)
) unpiv;
Note, the datatypes of the columns you are unpivoting must be the same so you might have to convert the datatypes prior to applying the unpivot.
You could also use CROSS APPLY with UNION ALL to convert the col...