// Copyright 2024 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // This is a "No Compile Test" suite. // http://dev.chromium.org/developers/testing/no-compile-tests #include "base/containers/adapters.h" #include "base/containers/span.h" #include #include namespace base { void DanglingInRangeBasedForLoop() { // This is not safe prior to C++23, since the temporary vector does not have // its lifetime extended. for (int&& x : RangeAsRvalues(std::vector({1, 2, 3}))) { // expected-error {{temporary implicitly bound to local reference will be destroyed at the end of the full-expression}} x *= x; } for (int& x : Reversed(std::vector({1, 2, 3}))) { // expected-error {{temporary implicitly bound to local reference will be destroyed at the end of the full-expression}} x *= x; } } void RangeAsRvaluesRequiresNonBorrowedRange() { std::vector v; RangeAsRvalues(v); // expected-error {{no matching function for call to 'RangeAsRvalues'}} } void RangeAsRvaluesRequiresMutableRange() { // A non-mutable range can't be moved from. const std::vector v; RangeAsRvalues(std::move(v)); // expected-error {{no matching function for call to 'RangeAsRvalues'}} } } // namespace base