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
137 lines
3.1 KiB
Rust
137 lines
3.1 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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// STACK BY REF
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// debugger:finish
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// debugger:print *self
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// check:$1 = {100, -100.5}
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// debugger:print arg1
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// check:$2 = -1
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// debugger:print arg2
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// check:$3 = -2
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// debugger:continue
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// STACK BY VAL
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// debugger:finish
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// d ebugger:print self -- ignored for now because of issue #8512
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// c heck:$X = {100, -100.5}
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// debugger:print arg1
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// check:$4 = -3
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// debugger:print arg2
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// check:$5 = -4
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// debugger:continue
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// OWNED BY REF
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// debugger:finish
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// debugger:print *self
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// check:$6 = {200, -200.5}
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// debugger:print arg1
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// check:$7 = -5
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// debugger:print arg2
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// check:$8 = -6
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// debugger:continue
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// OWNED BY VAL
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// debugger:finish
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// d ebugger:print self -- ignored for now because of issue #8512
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// c heck:$X = {200, -200.5}
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// debugger:print arg1
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// check:$9 = -7
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// debugger:print arg2
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// check:$10 = -8
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// debugger:continue
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// OWNED MOVED
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// debugger:finish
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// debugger:print *self
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// check:$11 = {200, -200.5}
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// debugger:print arg1
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// check:$12 = -9
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// debugger:print arg2
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// check:$13 = -10
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// debugger:continue
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// MANAGED BY REF
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// debugger:finish
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// debugger:print *self
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// check:$14 = {300, -300.5}
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// debugger:print arg1
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// check:$15 = -11
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// debugger:print arg2
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// check:$16 = -12
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// debugger:continue
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// MANAGED BY VAL
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// debugger:finish
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// d ebugger:print self -- ignored for now because of issue #8512
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// c heck:$X = {300, -300.5}
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// debugger:print arg1
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// check:$17 = -13
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// debugger:print arg2
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// check:$18 = -14
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// debugger:continue
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// MANAGED SELF
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// debugger:finish
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// debugger:print self->val
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// check:$19 = {300, -300.5}
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// debugger:print arg1
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// check:$20 = -15
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// debugger:print arg2
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// check:$21 = -16
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// debugger:continue
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struct TupleStruct(int, f64);
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impl TupleStruct {
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fn self_by_ref(&self, arg1: int, arg2: int) -> int {
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zzz();
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arg1 + arg2
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}
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fn self_by_val(self, arg1: int, arg2: int) -> int {
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zzz();
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arg1 + arg2
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}
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fn self_owned(~self, arg1: int, arg2: int) -> int {
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zzz();
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arg1 + arg2
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}
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fn self_managed(@self, arg1: int, arg2: int) -> int {
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zzz();
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arg1 + arg2
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}
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}
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fn main() {
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let stack = TupleStruct(100, -100.5);
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let _ = stack.self_by_ref(-1, -2);
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let _ = stack.self_by_val(-3, -4);
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let owned = ~TupleStruct(200, -200.5);
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let _ = owned.self_by_ref(-5, -6);
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let _ = owned.self_by_val(-7, -8);
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let _ = owned.self_owned(-9, -10);
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let managed = @TupleStruct(300, -300.5);
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let _ = managed.self_by_ref(-11, -12);
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let _ = managed.self_by_val(-13, -14);
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let _ = managed.self_managed(-15, -16);
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}
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fn zzz() {()}
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