Numbers

Fixed-width signed and unsigned integers plus two float widths, with literal suffixes.

WCL has fixed-width signed and unsigned integers plus two float widths. A bare integer literal defaults to i64; a suffix pins the exact type. Underscores may group digits for readability and are ignored. See Numeric promotion for how mixed operands widen to a common type.

Literal syntax — radixes, width suffixes, and digit-grouping underscores — is its own note: Number literals.

§ 1Types

Width	Signed	Unsigned	Float
8-bit	i8	u8	—
16-bit	i16	u16	—
32-bit	i32	u32	f32
64-bit	i64	u64	f64
128-bit	i128	u128	—
platform default size	isize	usize	—

The platform-default size (isize / usize) is the pointer width of the machine WCL runs on — 64-bit on most desktops/servers, 32-bit on smaller targets — so its exact width changes depending on the platform.