Trait rug::ops::RemRoundingFrom
source · pub trait RemRoundingFrom<Lhs = Self> {
// Required methods
fn rem_trunc_from(&mut self, lhs: Lhs);
fn rem_ceil_from(&mut self, lhs: Lhs);
fn rem_floor_from(&mut self, lhs: Lhs);
fn rem_euc_from(&mut self, lhs: Lhs);
}Expand description
Compound assignment to the rhs operand and rounding variants of the remainder operation.
§Examples
use rug::ops::RemRoundingFrom;
struct I(i32);
impl RemRoundingFrom<i32> for I {
fn rem_trunc_from(&mut self, lhs: i32) {
self.0 = lhs % self.0;
}
fn rem_ceil_from(&mut self, lhs: i32) {
let r = lhs % self.0;
let change = if self.0 > 0 { r > 0 } else { r < 0 };
self.0 = if change { r - self.0 } else { r };
}
fn rem_floor_from(&mut self, lhs: i32) {
let r = lhs % self.0;
let change = if self.0 > 0 { r < 0 } else { r > 0 };
self.0 = if change { r + self.0 } else { r };
}
fn rem_euc_from(&mut self, lhs: i32) {
let r = lhs % self.0;
self.0 = if r < 0 {
if self.0 < 0 {
r - self.0
} else {
r + self.0
}
} else {
r
};
}
}
let mut rem_ceil = I(3);
rem_ceil.rem_ceil_from(10);
assert_eq!(rem_ceil.0, -2);Required Methods§
sourcefn rem_trunc_from(&mut self, lhs: Lhs)
fn rem_trunc_from(&mut self, lhs: Lhs)
Finds the remainder when the quotient is rounded towards zero.
sourcefn rem_ceil_from(&mut self, lhs: Lhs)
fn rem_ceil_from(&mut self, lhs: Lhs)
Finds the remainder when the quotient is rounded up.
sourcefn rem_floor_from(&mut self, lhs: Lhs)
fn rem_floor_from(&mut self, lhs: Lhs)
Finds the remainder when the quotient is rounded down.
sourcefn rem_euc_from(&mut self, lhs: Lhs)
fn rem_euc_from(&mut self, lhs: Lhs)
Finds the positive remainder from Euclidean division.