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String::truncate doc: also fails if not a char boundary #17794

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Merged
bors merged 1 commit into from
Oct 6, 2014
Merged

String::truncate doc: also fails if not a char boundary #17794

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9 changes: 5 additions & 4 deletions src/libcollections/string.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -613,7 +613,8 @@ impl String {
///
/// # Failure
///
/// Fails if `len` > current length.
/// Fails if `new_len` > current length,
/// or if `new_len` is not a character boundary.
///
/// # Example
///
Expand All @@ -624,9 +625,9 @@ impl String {
/// ```
#[inline]
#[unstable = "the failure conventions for strings are under development"]
pub fn truncate(&mut self, len: uint) {
assert!(self.as_slice().is_char_boundary(len));
self.vec.truncate(len)
pub fn truncate(&mut self, new_len: uint) {
assert!(self.as_slice().is_char_boundary(new_len));
self.vec.truncate(new_len)
}

/// Appends a byte to this string buffer.
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