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What is the performance cost of having a virtual method in a C++ class?
...tch: 150000000 1.285
switched: 150000000 0.345367
overhead: 150000000 0.231051
virtual dispatch: 150000000 1.28969
switched: 150000000 0.345876
overhead: 150000000 0.230726
This suggests an inline type-number-switched approach is about (1.28 - 0.23) / (0.344 - 0.23) = 9.2 times as fast. Of course...
How to use a variable to specify column name in ggplot
... facet_grid? It works with facet_grid(cols = vars(!!column)) but throws an error with facet_grid(~ !!column)
– mRiddle
Oct 20 '19 at 6:57
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Parsing XML with namespace in Python via 'ElementTree'
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I got the error:ValueError: write to closed for this line filemy_namespaces = dict([node for _, node in ET.iterparse(StringIO(my_schema), events=['start-ns'])]). Any idea wants wrong?
– Yuli
Feb 2...
How to test if a string is basically an integer in quotes using Ruby
...l flow.
– Sarah Mei
Aug 5 '09 at 22:05
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They aren't, but unfortunately this is the canonical wa...
Is it possible to cherry-pick a commit from another git repository?
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error: patch failed: somefile.cs:85 error: somefile.cs: patch does not apply Did you hand edit your patch? It does not apply to blobs recorded in its index. Cannot fall back to three-way merge. Patch failed at 0001 Added GUI ...
How are multi-dimensional arrays formatted in memory?
In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code:
6 Answers
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How to have stored properties in Swift, the same way I had on Objective-C?
...plemented code like yours but when updating to swift 2.0, i am getting the error cannot invoke initializer for type 'UInt' with an argument list of type 'objc_AssociationPolicy)'. Code in next comment
– user2363025
Oct 23 '15 at 7:16
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How to write a:hover in inline CSS?
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edited Apr 7 '18 at 5:05
Gangani Roshan
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PHP ORMs: Doctrine vs. Propel
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– Clement Herreman
Sep 26 '12 at 14:05
1
@ClementHerreman, if isn't helpful don't use it anymore ...
How to make shallow git submodules?
...t 5dd1d59, 10 Dec 2019)
submodule--helper: advise on fatal alternate error
Signed-off-by: Jonathan Tan
Acked-by: Jeff King
When recursively cloning a superproject with some shallow modules defined in its .gitmodules, then recloning with "--reference=<path>", an error occurs. ...