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When does invoking a member function on a null instance result in undefined behavior?
... perform lvalue-to-rvalue conversion?
Regardless, it definitely cannot be converted to an rvalue (§4.1/1):
If the object to which the lvalue refers is not an object of type T and is not an object of a type derived from T, or if the object is uninitialized, a program that necessitates this conv...
Why are unsigned int's not CLS compliant?
...verflow checking, and sign-agnostic addition mod 2^32, etc.; when asked to convert an object reference to a 32-bit integer primitive, the CLR neither knows nor cares whether the code using that number expects it to be signed or unsigned. Whether the compiler believes a number is signed or unsigned ...
Is there a way to check if int is legal enum in C#?
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@matti: Convert "78" into whatever number representation LoggingLevel uses as storage, then present that as a LoggingLevel enum value.
– thecoop
Apr 20 '10 at 12:36
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SQL Server: Make all UPPER case to Proper Case/Title Case
...ants to change it so that it does not ignore already-lower-case words, and converts them as well, e.g. "tom bombadil" to "Tom Bombadil", just change this one line -- SET @o = @o + @c to SET @o = @o + UPPER(@c) . =)
– NateJ
Jun 14 '17 at 18:02
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How to get year, month, day, hours, minutes, seconds and milliseconds of the current moment in Java?
... millis);
Either way, this prints as of now:
2010-04-16 15:15:17.816
To convert an int to String, make use of String#valueOf().
If your intent is after all to arrange and display them in a human friendly string format, then better use either Java8's java.time.format.DateTimeFormatter (tutorial h...
Is it better to use C void arguments “void foo(void)” or not “void foo()”? [duplicate]
...f no parameter type list is present, that can't be done, and arguments are converted to promoted types (that is called the default argument promotion). char will become int, for example, while float will become double.
Composite type for functions
By the way, if a file contains both an omitted id...
Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript?
22 Answers
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Pick a random value from an enum?
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I really don't see the point of converting the values() array to an unmodifiable list. The VALUES object is already encapsulated by virtue of being declared private. It would be simpler AND more efficient to make it private static final Letter[] VALUES = ...
What are all the uses of an underscore in Scala?
...st(1, 2, 3) map (_ + 2)
Method values
List(1, 2, 3) foreach println _
Converting call-by-name parameters to functions
def toFunction(callByName: => Int): () => Int = callByName _
Default initializer
var x: String = _ // unloved syntax may be eliminated
There may be others I have f...
How to round an average to 2 decimal places in PostgreSQL?
...ording to Bryan's response you can do this to limit decimals in a query. I convert from km/h to m/s and display it in dygraphs but when I did it in dygraphs it looked weird. Looks fine when doing the calculation in the query instead. This is on postgresql 9.5.1.
select date,(wind_speed/3.6)::numeri...