8508b1c133
After this patch, we can use `--param std=c++20` even if the compiler only supports -std=c++2a. The test suite will handle that for us. The only Lit feature that isn't fully baked will always be the "in development" one, since we don't know exactly what year the standard will be ratified in. This is another take on https://reviews.llvm.org/D99789. Differential Revision: https://reviews.llvm.org/D100210
72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
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// <string>
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// constexpr bool contains(const CharT *x) const;
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#include <string>
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#include <cassert>
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#include "test_macros.h"
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void test()
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{
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using S = std::string;
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const char* s = "abcde";
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S s0;
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S s1 {s + 4, 1};
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S s3 {s + 2, 3};
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S sNot {"xyz", 3};
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assert(s0.contains(""));
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assert(!s0.contains("e"));
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assert( s1.contains(""));
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assert(!s1.contains("d"));
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assert( s1.contains("e"));
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assert(!s1.contains("de"));
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assert(!s1.contains("cd"));
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assert(!s1.contains("cde"));
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assert(!s1.contains("bcde"));
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assert(!s1.contains("abcde"));
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assert(!s1.contains("xyz"));
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assert( s3.contains(""));
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assert( s3.contains("d"));
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assert( s3.contains("e"));
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assert( s3.contains("de"));
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assert( s3.contains("cd"));
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assert(!s3.contains("ce"));
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assert( s3.contains("cde"));
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assert(!s3.contains("edc"));
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assert(!s3.contains("bcde"));
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assert(!s3.contains("abcde"));
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assert(!s3.contains("xyz"));
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assert( sNot.contains(""));
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assert(!sNot.contains("d"));
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assert(!sNot.contains("e"));
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assert(!sNot.contains("de"));
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assert(!sNot.contains("cd"));
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assert(!sNot.contains("cde"));
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assert(!sNot.contains("bcde"));
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assert(!sNot.contains("abcde"));
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assert( sNot.contains("xyz"));
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assert(!sNot.contains("zyx"));
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}
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int main(int, char**)
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{
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test();
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return 0;
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}
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