| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 10 | // UNSUPPORTED: msvc |
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| 11 | |
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| 12 | // std::ranges::begin |
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| 13 | // std::ranges::cbegin |
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| 14 | // Test the fix for https://llvm.org/PR54100 |
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| 15 | |
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| 16 | #include <ranges> |
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| 17 | #include <cassert> |
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| 18 | |
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| 19 | #include "test_macros.h" |
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| 20 | |
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| 21 | struct A { |
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| 22 | int m[0]; |
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| 23 | }; |
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| 24 | static_assert(sizeof(A) == 0); // an extension supported by GCC and Clang |
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| 25 | |
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| 26 | int main(int, char**) |
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| 27 | { |
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| 28 | A a[10]; |
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| 29 | std::same_as<A*> auto p = std::ranges::begin(a); |
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| 30 | assert(p == a); |
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| 31 | std::same_as<const A*> auto cp = std::ranges::cbegin(a); |
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| 32 | assert(cp == a); |
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| 33 | |
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| 34 | return 0; |
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| 35 | } |
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| 36 | |
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