Macro typenum::cmp [−][src]
👎 Deprecated since 1.9.0:
use the op!
macro instead
A convenience macro for comparing type numbers. Use op!
instead.
Due to the intricacies of the macro system, if the left-hand operand is more complex than a simple
ident
, you must place a comma between it and the comparison sign.
For example, you can do cmp!(P5 > P3)
or cmp!(typenum::P5, > typenum::P3)
but not
cmp!(typenum::P5 > typenum::P3)
.
The result of this comparison will always be one of True
(aka B1
) or False
(aka B0
).
Example
#[macro_use] extern crate typenum; use typenum::consts::*; use typenum::Bit; fn main() { type Result = cmp!(P9 == op!(P1 + P2 * (P2 - N2))); assert_eq!(Result::to_bool(), true); }