c9d4ad07c4
It is simply defined as `f64` across every platform right now. A use case hasn't been presented for a `float` type defined as the highest precision floating point type implemented in hardware on the platform. Performance-wise, using the smallest precision correct for the use case greatly saves on cache space and allows for fitting more numbers into SSE/AVX registers. If there was a use case, this could be implemented as simply a type alias or a struct thanks to `#[cfg(...)]`. Closes #6592 The mailing list thread, for reference: https://mail.mozilla.org/pipermail/rust-dev/2013-July/004632.html
62 lines
1.5 KiB
Rust
62 lines
1.5 KiB
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
// compile-flags:-Z extra-debug-info
|
|
// debugger:rbreak zzz
|
|
// debugger:run
|
|
|
|
// debugger:finish
|
|
// debugger:print *t0
|
|
// check:$1 = 1
|
|
// debugger:print *t1
|
|
// check:$2 = 2.5
|
|
// debugger:print ret
|
|
// check:$3 = {{1, 2.5}, {2.5, 1}}
|
|
// debugger:continue
|
|
|
|
// debugger:finish
|
|
// debugger:print *t0
|
|
// check:$4 = 3.5
|
|
// debugger:print *t1
|
|
// check:$5 = 4
|
|
// debugger:print ret
|
|
// check:$6 = {{3.5, 4}, {4, 3.5}}
|
|
// debugger:continue
|
|
|
|
// debugger:finish
|
|
// debugger:print *t0
|
|
// check:$7 = 5
|
|
// debugger:print *t1
|
|
// check:$8 = {a = 6, b = 7.5}
|
|
// debugger:print ret
|
|
// check:$9 = {{5, {a = 6, b = 7.5}}, {{a = 6, b = 7.5}, 5}}
|
|
// debugger:continue
|
|
|
|
#[deriving(Clone)]
|
|
struct Struct {
|
|
a: int,
|
|
b: f64
|
|
}
|
|
|
|
fn dup_tup<T0: Clone, T1: Clone>(t0: &T0, t1: &T1) -> ((T0, T1), (T1, T0)) {
|
|
let ret = ((t0.clone(), t1.clone()), (t1.clone(), t0.clone()));
|
|
zzz();
|
|
ret
|
|
}
|
|
|
|
fn main() {
|
|
|
|
let _ = dup_tup(&1, &2.5);
|
|
let _ = dup_tup(&3.5, &4_u16);
|
|
let _ = dup_tup(&5, &Struct { a: 6, b: 7.5 });
|
|
}
|
|
|
|
fn zzz() {()}
|