Numbers

If a number has a 0x or 0X prefix it is parsed as a hexadecimal number.

When a number is written without a decimal point, it is by default of type long(System.Int64), when there is a decimal point it is of type double(System.Double), and when it is a hexadecimal number, it is of type ulong(System.Uint64) by default.

Numbers can also have suffixes, which are case insensitive. A hexadecimal number cannot have a suffix that would make it a floating point number.

• I or i - int, can also have a U or u suffix to make it a uint
• L or l - long, can also have a U or u suffix to make it a ulong
• F or f - float
• D or d - double
• M or m - decimal

You can also use underscores to make numbers more readable. Note that the first character after a decimal point is not allowed to be an underscore.

rcaron
$h = 1; // long
$h = 1L; // long
$h = 1ul; // ulong
$h = 0xdeadbeef; // long
$h = 0xdeadbeefUL; // ulong
$h = 1I; // int
$h = 1.0F; // float
$h = 1.0; // double
$h = 1.0D; // double
$h = 1.0M; // decimal
$h = 1_000_000; // long
$h = 1_______; //long
$h = 1.0_0; // double
$h = 1.0_0D; // double
$h = 0x_____dead_beef____ul; // long
$h = 0x_____; // error

rcaron
$h = 1; // long
$h = 1L; // long
$h = 1ul; // ulong
$h = 0xdeadbeef; // long
$h = 0xdeadbeefUL; // ulong
$h = 1I; // int
$h = 1.0F; // float
$h = 1.0; // double
$h = 1.0D; // double
$h = 1.0M; // decimal
$h = 1_000_000; // long
$h = 1_______; //long
$h = 1.0_0; // double
$h = 1.0_0D; // double
$h = 0x_____dead_beef____ul; // long
$h = 0x_____; // error