37 lines
819 B
Rust
37 lines
819 B
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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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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#![feature(tool_lints)]
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#![warn(clippy::if_let_some_result)]
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fn str_to_int(x: &str) -> i32 {
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if let Some(y) = x.parse().ok() {
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y
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} else {
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0
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}
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}
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fn str_to_int_ok(x: &str) -> i32 {
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if let Ok(y) = x.parse() {
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y
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} else {
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0
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}
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}
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fn main() {
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let y = str_to_int("1");
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let z = str_to_int_ok("2");
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println!("{}{}", y, z);
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}
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