a9a7a427a1
This commit uniforms the short title of modules provided by libstd, in order to make their roles more explicit when glancing at the index. Signed-off-by: Luca Bruno <lucab@debian.org>
27 lines
978 B
Rust
27 lines
978 B
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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//! The `FromStr` trait for types that can be created from strings
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use option::Option;
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/// A trait to abstract the idea of creating a new instance of a type from a
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/// string.
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pub trait FromStr {
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/// Parses a string `s` to return an optional value of this type. If the
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/// string is ill-formatted, the None is returned.
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fn from_str(s: &str) -> Option<Self>;
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}
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/// A utility function that just calls FromStr::from_str
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pub fn from_str<A: FromStr>(s: &str) -> Option<A> {
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FromStr::from_str(s)
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}
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