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“Treat all warnings as errors except…” in Visual Studio
...ct the "Treat warnings as errors" option to prevent my code from compiling if there are any warnings. Our team uses this option, but there are two warnings we would like to keep as warnings.
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Never seen before C++ for loop
...way, Thomas may have been confused by the use of the comma too, it's very different than the semi-colon, it lets you do multiple things in one section of the for loop (in this case, it initialized two variables). Last time I checked these unusual constructs weren't considered the most readable solu...
Difference between HashMap, LinkedHashMap and TreeMap
What is the difference between HashMap , LinkedHashMap and TreeMap in Java?
I don't see any difference in the output as all the three has keySet and values . What are Hashtable s?
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How much is too much with C++11 auto keyword?
...se it could be changed in the future. I would write auto in this case.
So if the auto keyword improves readability in a particular case then use it. You can write auto when it is obvious to the reader what type auto represents.
Here are some examples:
auto foo = std::make_shared<Foo>(); /...
How to copy a collection from one database to another in MongoDB
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Note that if you copy in the JS shell the BSON documents are decoded to JSON during the process so some documents may incur type changes. mongodump/mongorestore are generally the better approach.
– Stennie
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Convert numpy array to tuple
... Nice generalization. As a python newbie, though, I wonder if it's considered good style to use exceptions for a condition that is almost as common as the non-exceptional state. At least in c++, flow control by exceptions is usually frowned upon. Would it be better to test if type(...
How to combine multiple conditions to subset a data-frame using “OR”?
I have a data.frame in R. I want to try two different conditions on two different columns, but I want these conditions to be inclusive. Therefore, I would like to use "OR" to combine the conditions. I have used the following syntax before with lot of success when I wanted to use the "AND" conditio...
Removing index column in pandas when reading a csv
...column(s), it is not a column, which is why del df['index'] did not work.
If you want to replace the index with simple sequential numbers, use df.reset_index().
To get a sense for why the index is there and how it is used, see e.g. 10 minutes to Pandas.
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Reading large text files with streams in C#
...h text files (much larger than the files involved here) and achieved a significant performance gain by using a producer/consumer pattern. The producer task read in lines of text using the BufferedStream and handed them off to a separate consumer task that did the searching.
I used this as an opport...
Computed read-only property vs function in Swift
In the Introduction to Swift WWDC session, a read-only property description is demonstrated:
10 Answers
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