32 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <utility>10 11// template<class T, T N>12// using make_integer_sequence = integer_sequence<T, 0, 1, ..., N-1>;13 14// UNSUPPORTED: c++03, c++1115 16// This test hangs during recursive template instantiation with libstdc++17// UNSUPPORTED: stdlib=libstdc++18 19#include <utility>20 21#include "test_macros.h"22 23typedef std::make_integer_sequence<int, -3> MakeSeqT;24 25// std::make_integer_sequence is implemented using a compiler builtin if available.26// this builtin has different diagnostic messages than the fallback implementation.27#if TEST_HAS_BUILTIN(__make_integer_seq)28MakeSeqT i; // expected-error@*:* {{integer sequences must have non-negative sequence length}}29#else30MakeSeqT i; // expected-error-re@*:* {{static assertion failed{{.*}}std::make_integer_sequence must have a non-negative sequence length}}31#endif32