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What is the difference between a reference type and value type in c#?
...gregated into "class, struct, enum, delegate, interface". int is a struct, string is a class, Action is a delegate, etc. Your list of "int, bool, float, class, interface, delegate" is a list containing difference kinds of things, in the same way that "10, int" is a list containing different kinds of...
Equivalent C++ to Python generator pattern
...rs. For example, reading from std::cin is similar to having a generator of char.
You simply need to understand what a generator does:
there is a blob of data: the local variables define a state
there is an init method
there is a "next" method
there is a way to signal termination
In your trivial...
How to convert an NSString into an NSNumber
How can I convert a NSString containing a number of any primitive data type (e.g. int , float , char , unsigned int , etc.)? The problem is, I don't know which number type the string will contain at runtime.
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Receiving “fatal: Not a git repository” when attempting to remote add a Git repo
...nd then I did this:
echo 'ref: refs/heads/ML_#94_FILTER_TYPES_AND_SPECIAL_CHARS' > .git/HEAD
It worked.
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How can I disable logging while running unit tests in Python Django?
... Sounds like an import issue. Are you setting TEST_RUNNER to a string path to the runner (not the actual Python module)? Also, where is your runner located? I have mine in a separate app named helpers, which only has utils that don't import from anywhere else within the project.
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How does this code generate the map of India?
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The long string is simply a binary sequence converted to ASCII. The first for statement makes b start out at 10, and the [b+++21] after the string yields 31. Treating the string as an array, offset 31 is the start of the "real" data...
Consistency of hashCode() on a Java string
The hashCode value of a Java String is computed as ( String.hashCode() ):
8 Answers
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psycopg2: insert multiple rows with one query
... 3, cursor.mogrify() returns bytes, cursor.execute() takes either bytes or strings, and ','.join() expects str instance.
So in Python 3 you may need to modify @ant32 's code, by adding .decode('utf-8'):
args_str = ','.join(cur.mogrify("(%s,%s,%s,%s,%s,%s,%s,%s,%s)", x).decode('utf-8') for x in tup...
Why can't variables be declared in a switch statement?
...istency in the code. In the old days, you might have automatically got an "extra" stack frame, but now that should not be the case for any decent optimizing compiler.
– Tall Jeff
Sep 18 '08 at 14:37
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C/C++ check if one bit is set in, i.e. int variable
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@iNFINITEi std::bitset<CHAR_BIT * sizeof(int)> to be even more correct
– Xeverous
Apr 23 '18 at 9:24
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