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Add doc example for CString::as_c_str.

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This commit is contained in:
Corey Farwell 2017-06-18 16:05:00 -07:00
parent 65793b30d3
commit 0962394b84
1 changed files with 12 additions and 0 deletions
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12
src/libstd/ffi/c_str.rs
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@ -412,6 +412,18 @@ pub fn as_bytes_with_nul(&self) -> &[u8] {
/// Extracts a [`CStr`] slice containing the entire string.
///
/// [`CStr`]: struct.CStr.html
///
/// # Examples
///
/// ```
/// #![feature(as_c_str)]
///
/// use std::ffi::{CString, CStr};
///
/// let c_string = CString::new(b"foo".to_vec()).unwrap();
/// let c_str = c_string.as_c_str();
/// assert_eq!(c_str, CStr::from_bytes_with_nul(b"foo\0").unwrap());
/// ```
#[inline]
#[unstable(feature = "as_c_str", issue = "40380")]
pub fn as_c_str(&self) -> &CStr {