| // Copyright 2012 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. |
| |
| #![allow(dead_code)] |
| // Check that functions can modify local state. |
| |
| // pretty-expanded FIXME #23616 |
| |
| #![feature(box_syntax)] |
| |
| fn sums_to(v: Vec<isize> , sum: isize) -> bool { |
| let mut i = 0; |
| let mut sum0 = 0; |
| while i < v.len() { |
| sum0 += v[i]; |
| i += 1; |
| } |
| return sum0 == sum; |
| } |
| |
| fn sums_to_using_uniq(v: Vec<isize> , sum: isize) -> bool { |
| let mut i = 0; |
| let mut sum0: Box<_> = box 0; |
| while i < v.len() { |
| *sum0 += v[i]; |
| i += 1; |
| } |
| return *sum0 == sum; |
| } |
| |
| fn sums_to_using_rec(v: Vec<isize> , sum: isize) -> bool { |
| let mut i = 0; |
| let mut sum0 = F {f: 0}; |
| while i < v.len() { |
| sum0.f += v[i]; |
| i += 1; |
| } |
| return sum0.f == sum; |
| } |
| |
| struct F<T> { f: T } |
| |
| fn sums_to_using_uniq_rec(v: Vec<isize> , sum: isize) -> bool { |
| let mut i = 0; |
| let mut sum0 = F::<Box<_>> {f: box 0}; |
| while i < v.len() { |
| *sum0.f += v[i]; |
| i += 1; |
| } |
| return *sum0.f == sum; |
| } |
| |
| pub fn main() { |
| } |