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base / containers / adapters_nocompile.nc [blame]
// 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 <utility>
#include <vector>
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<int> 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<int> v;
RangeAsRvalues(std::move(v)); // expected-error {{no matching function for call to 'RangeAsRvalues'}}
}
} // namespace base