Though there are ways to convert a slice or vec of chars into a string,
it would be nice to be able to just do `String::from(['a', 'b', 'c'])`,
so this PR implements `From<Vec<char>>` and `From<&'a [char]>` for
String.
}
}
+#[stable(feature = "stringfromchars", since = "1.12.0")]
+impl<'a> From<&'a [char]> for String {
+ #[inline]
+ fn from(v: &'a [char]) -> String {
+ let mut s = String::with_capacity(v.len());
+ for c in v {
+ s.push(*c);
+ }
+ s
+ }
+}
+
+#[stable(feature = "stringfromchars", since = "1.12.0")]
+impl From<Vec<char>> for String {
+ #[inline]
+ fn from(v: Vec<char>) -> String {
+ String::from(v.as_slice())
+ }
+}
+
#[stable(feature = "rust1", since = "1.0.0")]
impl fmt::Write for String {
#[inline]