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// run-pass
#![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() {
}
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