diff options
| -rw-r--r-- | src/libcollections/str.rs | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/src/libcollections/str.rs b/src/libcollections/str.rs index 7e47f02d21a..aa2b38cfa9d 100644 --- a/src/libcollections/str.rs +++ b/src/libcollections/str.rs @@ -97,6 +97,15 @@ Section: Creating a string /// /// Returns `Err` with the original vector if the vector contains invalid /// UTF-8. +/// +/// # Example +/// +/// ```rust +/// use std::str; +/// let hello_vec = vec![104, 101, 108, 108, 111]; +/// let string = str::from_utf8_owned(hello_vec); +/// assert_eq!(string, Ok("hello".to_string())); +/// ``` pub fn from_utf8_owned(vv: Vec<u8>) -> Result<String, Vec<u8>> { String::from_utf8(vv) } @@ -111,8 +120,8 @@ pub fn from_utf8_owned(vv: Vec<u8>) -> Result<String, Vec<u8>> { /// /// ```rust /// use std::str; -/// let string = str::from_byte(66u8); -/// assert_eq!(string.as_slice(), "B"); +/// let string = str::from_byte(104); +/// assert_eq!(string.as_slice(), "h"); /// ``` pub fn from_byte(b: u8) -> String { assert!(b < 128u8); @@ -120,6 +129,14 @@ pub fn from_byte(b: u8) -> String { } /// Convert a char to a string +/// +/// # Example +/// +/// ```rust +/// use std::str; +/// let string = str::from_char('b'); +/// assert_eq!(string.as_slice(), "b"); +/// ``` pub fn from_char(ch: char) -> String { let mut buf = String::new(); buf.push_char(ch); @@ -127,6 +144,15 @@ pub fn from_char(ch: char) -> String { } /// Convert a vector of chars to a string +/// +/// # Example +/// +/// ```rust +/// use std::str; +/// let chars = ['h', 'e', 'l', 'l', 'o']; +/// let string = str::from_chars(chars); +/// assert_eq!(string.as_slice(), "hello"); +/// ``` pub fn from_chars(chs: &[char]) -> String { chs.iter().map(|c| *c).collect() } |