@@ -2373,6 +2373,26 @@ impl<'a> FromIterator<Cow<'a, str>> for String {
23732373 }
23742374}
23752375
2376+ #[ cfg( not( no_global_oom_handling) ) ]
2377+ #[ unstable( feature = "ascii_char" , issue = "110998" ) ]
2378+ impl FromIterator < core:: ascii:: Char > for String {
2379+ fn from_iter < T : IntoIterator < Item = core:: ascii:: Char > > ( iter : T ) -> Self {
2380+ let mut buf = String :: new ( ) ;
2381+ buf. extend ( iter) ;
2382+ buf
2383+ }
2384+ }
2385+ 2386+ #[ cfg( not( no_global_oom_handling) ) ]
2387+ #[ unstable( feature = "ascii_char" , issue = "110998" ) ]
2388+ impl < ' a > FromIterator < & ' a core:: ascii:: Char > for String {
2389+ fn from_iter < T : IntoIterator < Item = & ' a core:: ascii:: Char > > ( iter : T ) -> Self {
2390+ let mut buf = String :: new ( ) ;
2391+ buf. extend ( iter) ;
2392+ buf
2393+ }
2394+ }
2395+ 23762396#[ cfg( not( no_global_oom_handling) ) ]
23772397#[ stable( feature = "rust1" , since = "1.0.0" ) ]
23782398impl Extend < char > for String {
@@ -3200,6 +3220,14 @@ impl<'a> FromIterator<String> for Cow<'a, str> {
32003220 }
32013221}
32023222
3223+ #[ cfg( not( no_global_oom_handling) ) ]
3224+ #[ unstable( feature = "ascii_char" , issue = "110998" ) ]
3225+ impl < ' a > FromIterator < core:: ascii:: Char > for Cow < ' a , str > {
3226+ fn from_iter < T : IntoIterator < Item = core:: ascii:: Char > > ( it : T ) -> Self {
3227+ Cow :: Owned ( FromIterator :: from_iter ( it) )
3228+ }
3229+ }
3230+ 32033231#[ stable( feature = "from_string_for_vec_u8" , since = "1.14.0" ) ]
32043232impl From < String > for Vec < u8 > {
32053233 /// Converts the given [`String`] to a vector [`Vec`] that holds values of type [`u8`].
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