Using [T; N] is the proper way to do it in most cases; that way there is no boxing of values at all. There is another way, though, which is also useful at times, though it is slightly less efficient (due to pointer indirection): &’static [T]. In your case:— static NUMBERS: &’static [i32] = &[1, … Read more
You can do: val map = hashMapOf( “John” to “Doe”, “Jane” to “Smith” ) Here, to is an infix function that creates a Pair. Or, more abstract: use mapOf() like val map = mapOf(“a” to 1, “b” to 2, “c” to 3) ( found on kotlinlang )
From section 1.1 Boolean Datatype of the docs: SQLite does not have a separate Boolean storage class. Instead, Boolean values are stored as integers 0 (false) and 1 (true). So it looks like you are stuck with 0 and 1.
-fsingle-precision-constant flag can be used. It causes floating-point constants to be loaded in single precision even when this is not exact. Note- This will also use single precision constants in operations on double precision variables.
Whether two different string literals with same content is placed in the same memory location or different memory locations is implementation-dependent. You should always treat p and p1 as two different pointers (even though they have the same content) as they may or may not point to the same address. You shouldn’t rely on compiler … Read more
From the C++ Standard The type of a floating literal is double unless explicitly specified by a suffix. The suffixes f and F specify float, the suffixes l and L specify long double. It is interesting to compare with corresponding paragraph of the C Standard. In C there is used term floating constant instead of … Read more
You have assigned a character literal, which is delimited by single quotes, eg ‘a’ (as distinct from a String literal, which is delimited by double quotes, eg “a”) to an int variable. Java does an automatic widening cast from the 16-bit unsigned char to the 32-bit signed int. However, when a character literal is a … Read more
SQL Server doesn’t have a boolean data type. As @Mikael has indicated, the closest approximation is the bit. But that is a numeric type, not a boolean type. In addition, it only supports 2 values – 0 or 1 (and one non-value, NULL). SQL (standard SQL, as well as T-SQL dialect) describes a Three valued … Read more
It’s a bug that you can use 0.0. The compiler implicitly treats all constant expressions with a value of zero as just 0. Now, it’s correct for the compiler to allow an implicit conversion from a constant int expression of 0 to your enum as per section 6.1.3 of the C# 5 specification: An implicit … Read more
A character literal is entered using a single character string suffixed with a C. Dim theLetterA As Char = “A”C