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
60 lines
1.3 KiB
Rust
60 lines
1.3 KiB
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// compile-flags:-Z extra-debug-info
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// debugger:rbreak zzz
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// debugger:run
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// debugger:finish
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// debugger:print variable
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// check:$1 = 1
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// debugger:print constant
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// check:$2 = 2
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// debugger:print a_struct
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// check:$3 = {a = -3, b = 4.5, c = 5}
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// debugger:print *struct_ref
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// check:$4 = {a = -3, b = 4.5, c = 5}
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// debugger:print *owned
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// check:$5 = 6
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// debugger:print managed->val
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// check:$6 = 7
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#[allow(unused_variable)];
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struct Struct {
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a: int,
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b: f64,
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c: uint
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}
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fn main() {
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let mut variable = 1;
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let constant = 2;
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let a_struct = Struct {
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a: -3,
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b: 4.5,
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c: 5
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};
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let struct_ref = &a_struct;
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let owned = ~6;
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let managed = @7;
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let closure = || {
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zzz();
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variable = constant + a_struct.a + struct_ref.a + *owned + *managed;
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};
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closure();
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}
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fn zzz() {()}
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