rust/src/test/run-fail/borrowck-wg-mut-then-imm.rs

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#[feature(managed_boxes)];
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// error-pattern:borrowed
// Test that if you mut borrow then imm borrow it fails.
fn add1(a:@mut int)
{
add2(a); // already frozen
}
fn add2(_:&int)
{
}
pub fn main()
{
let a = @mut 3;
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let _b = &mut *a; // freezes a
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add1(a);
}