Implement uninitialized string resize in abseil-cpp-tstring

commit_hash:b627b33a30b4948b8b2240e7aa8693793e86501f

1 files changed, 19 insertions, 0 deletions

diff --git a/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/resize_uninitialized.h b/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/resize_uninitialized.h
index 984562257d..8451cc504b 100644
--- a/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/resize_uninitialized.h
+++ b/contrib/restricted/abseil-cpp-tstring/y_absl/strings/internal/resize_uninitialized.h
@@ -49,6 +49,16 @@ struct ResizeUninitializedTraits<
   }
 };
 
+template <typename string_type>
+struct ResizeUninitializedTraits<
+    string_type, y_absl::void_t<decltype(std::declval<string_type&>()
+                                           .ReserveAndResize(237))> > {
+  using HasMember = std::true_type;
+  static void Resize(string_type* s, size_t new_size) {
+    s->ReserveAndResize(new_size);
+  }
+};
+
 // Returns true if the TString implementation supports a resize where
 // the new characters added to the TString are left untouched.
 //
@@ -98,6 +108,15 @@ struct AppendUninitializedTraits<
   }
 };
 
+template <typename string_type>
+struct AppendUninitializedTraits<
+    string_type, y_absl::void_t<decltype(std::declval<string_type&>()
+                                           .ReserveAndResize(237))> > {
+  static void Append(string_type* s, size_t n) {
+    s->ReserveAndResize(s->size() + n);
+  }
+};
+
 // Like STLStringResizeUninitialized(str, new_size), except guaranteed to use
 // exponential growth so that the amortized complexity of increasing the string
 // size by a small amount is O(1), in contrast to O(str->size()) in the case of