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# `str_box_extras` | ||
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The tracking issue for this feature is: [#str_box_extras] | ||
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[#str_box_extras]: https://github.com/rust-lang/rust/issues/41119 | ||
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// Copyright 2012-2017 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 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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//! Methods for dealing with boxed strings. | ||
use core::mem; | ||
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use boxed::Box; | ||
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/// Converts a boxed slice of bytes to a boxed string slice without checking | ||
/// that the string contains valid UTF-8. | ||
#[unstable(feature = "str_box_extras", issue = "41119")] | ||
pub unsafe fn from_boxed_utf8_unchecked(v: Box<[u8]>) -> Box<str> { | ||
mem::transmute(v) | ||
} |
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