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// run-pass
// Tests that two closures can simultaneously have immutable
// access to the variable, whether that immutable access be used
// for direct reads or for taking immutable ref. Also check
// that the main function can read the variable too while
// the closures are in scope. Issue #6801.
fn a() -> i32 {
let mut x = 3;
x += 1;
let c1 = || x * 4;
let c2 = || x * 5;
c1() * c2() * x
}
fn get(x: &i32) -> i32 {
*x * 4
}
fn b() -> i32 {
let mut x = 3;
x += 1;
let c1 = || get(&x);
let c2 = || get(&x);
c1() * c2() * x
}
fn c() -> i32 {
let mut x = 3;
x += 1;
let c1 = || x * 5;
let c2 = || get(&x);
c1() * c2() * x
}
pub fn main() {
assert_eq!(a(), 1280);
assert_eq!(b(), 1024);
assert_eq!(c(), 1280);
}
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