27 lines
806 B
Rust
27 lines
806 B
Rust
// Copyright 2014 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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macro_rules! prob1 {
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(0) => {
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0
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};
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($n:expr) => {
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if ($n % 3 == 0) || ($n % 5 == 0) {
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$n + prob1!($n - 1); //~ ERROR recursion limit reached while expanding the macro `prob1`
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} else {
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prob1!($n - 1);
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}
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};
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}
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fn main() {
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println!("Problem 1: {}", prob1!(1000));
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}
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