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Implement MinMax for all numeric types

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Brendan Zabarauskas 2012-11-01 16:17:38 +10:00
parent 17617643e7
commit 372d67f2c1
1 changed files with 63 additions and 22 deletions
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85
src/math.rs
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@ -20,29 +20,72 @@ trait MinMax {
#[inline(always)] pure fn min<T:MinMax>(a: &T, b: &T) -> T { a.min(b) } #[inline(always)] pure fn min<T:MinMax>(a: &T, b: &T) -> T { a.min(b) }
#[inline(always)] pure fn max<T:MinMax>(a: &T, b: &T) -> T { a.max(b) } #[inline(always)] pure fn max<T:MinMax>(a: &T, b: &T) -> T { a.max(b) }
impl u8: MinMax {
#[inline(always)] pure fn min(other: &u8) -> u8 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &u8) -> u8 { if self > *other { self } else { *other } }
}
impl u16: MinMax {
#[inline(always)] pure fn min(other: &u16) -> u16 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &u16) -> u16 { if self > *other { self } else { *other } }
}
impl u32: MinMax {
#[inline(always)] pure fn min(other: &u32) -> u32 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &u32) -> u32 { if self > *other { self } else { *other } }
}
impl u64: MinMax {
#[inline(always)] pure fn min(other: &u64) -> u64 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &u64) -> u64 { if self > *other { self } else { *other } }
}
impl uint: MinMax {
#[inline(always)] pure fn min(other: &uint) -> uint { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &uint) -> uint { if self > *other { self } else { *other } }
}
impl i8: MinMax {
#[inline(always)] pure fn min(other: &i8) -> i8 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &i8) -> i8 { if self > *other { self } else { *other } }
}
impl i16: MinMax {
#[inline(always)] pure fn min(other: &i16) -> i16 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &i16) -> i16 { if self > *other { self } else { *other } }
}
impl i32: MinMax {
#[inline(always)] pure fn min(other: &i32) -> i32 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &i32) -> i32 { if self > *other { self } else { *other } }
}
impl i64: MinMax {
#[inline(always)] pure fn min(other: &i64) -> i64 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &i64) -> i64 { if self > *other { self } else { *other } }
}
impl int: MinMax {
#[inline(always)] pure fn min(other: &int) -> int { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &int) -> int { if self > *other { self } else { *other } }
}
impl f32: MinMax {
#[inline(always)] pure fn min(other: &f32) -> f32 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &f32) -> f32 { if self > *other { self } else { *other } }
}
impl f64: MinMax {
#[inline(always)] pure fn min(other: &f64) -> f64 { if self < *other { self } else { *other } }
#[inline(always)] pure fn max(other: &f64) -> f64 { if self > *other { self } else { *other } }
}
impl float: MinMax { impl float: MinMax {
pure fn min(other: &float) -> float { #[inline(always)] pure fn min(other: &float) -> float { if self < *other { self } else { *other } }
if self < *other { self } #[inline(always)] pure fn max(other: &float) -> float { if self > *other { self } else { *other } }
else { *other }
}
pure fn max(other: &float) -> float {
if self > *other { self }
else { *other }
}
} }
// #[inline(always)]
// pure fn abs<T:Copy Num Ord>(x: &T) -> T {
// if x >= &from_int(0) { *x } else {-x }
// }
//
// Abs
//
trait Abs { trait Abs {
pure fn abs() -> self; pure fn abs() -> self;
} }
@ -116,9 +159,7 @@ impl float: Abs {
} }
} }
//
// Sqrt
//
trait Sqrt { trait Sqrt {
pure fn sqrt() -> self; pure fn sqrt() -> self;
} }