38 lines
1.0 KiB
Rust
38 lines
1.0 KiB
Rust
// Copyright 2012 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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fn main() {
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let x = 3;
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let y: i32 = 3;
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fn identity_u8(n: u8) -> u8 { n }
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fn identity_u16(n: u16) -> u16 { n }
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identity_u8(x); // after this, `x` is assumed to have type `u8`
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identity_u16(x);
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//~^ ERROR mismatched types
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//~| expected `u16`
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//~| found `u8`
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identity_u16(y);
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//~^ ERROR mismatched types
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//~| expected `u16`
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//~| found `i32`
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let a = 3;
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fn identity_i(n: isize) -> isize { n }
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identity_i(a); // ok
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identity_u16(a);
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//~^ ERROR mismatched types
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//~| expected `u16`
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//~| found `isize`
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}
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