// Copyright 2018 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. fn xyz() -> u8 { 42 } const NUM: u8 = xyz(); //~^ ERROR calls in constants are limited to constant functions, tuple structs and tuple variants //~| ERROR constant evaluation error fn main() { match 1 { NUM => unimplemented!(), _ => unimplemented!(), } }