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Declaring an unsigned int in Java
...g l = ulong(1);
All of these types extend java.lang.Number and can be converted into higher-order primitive types and BigInteger. Hope this helps.
(Disclaimer: I work for the company behind these libraries)
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Logic to test that 3 of 4 are True
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This is well defined in C++: the standard (§4.7/4) indicates that converting bool to int gives the expected values 0 or 1.
In Java and C#, you can use the following construct:
if ((a?1:0) + (b?1:0) + (c?1:0) + (d?1:0) == 3)
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C# - how to determine whether a Type is a number
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Would have thought the compiler would do an implicit convertion of the switch-statement to hashset.
– Rolf Kristensen
Aug 5 '13 at 15:02
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Can I list-initialize a vector of move-only type?
...ove_only()) };
Since the standard, for whatever reason, doesn't define a converting copy constructor like this:
// in class initializer_list
template<class U>
initializer_list(initializer_list<U> const& other);
The initializer_list<rref_wrapper<move_only>> created by...
What is a predicate in c#? [duplicate]
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They are not the same type and hence not convertible between each other.
– leppie
Nov 10 '09 at 19:02
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QString to char* conversion
I was trying to convert a QString to char* type by the following methods, but they don't seem to work.
10 Answers
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What does the “|” (single pipe) do in JavaScript?
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that's an nice way to convert floating-point number to int, or use parseInt()
– MaBi
Mar 14 '15 at 16:14
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max value of integer
... in hex, because of the overflow (and equals to Integer.MIN_VALUE). If you convert it to unsigned (long), the sign bit will be treated like a value bit, so it will be 2147483648. Thank you for the char note. char is unsigned, you're right, but char is not really used for calculations, that's why I...
Convert columns to string in Pandas
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One way to convert to string is to use astype:
total_rows['ColumnID'] = total_rows['ColumnID'].astype(str)
However, perhaps you are looking for the to_json function, which will convert keys to valid json (and therefore your keys to s...
Ruby, !! operator (a/k/a the double-bang) [duplicate]
...value of the operand. So when you chain two exclamation marks together, it converts the value to a boolean.
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