| 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 | // <string> |
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| 10 | |
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| 11 | // basic_string<charT,traits,Allocator>& |
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| 12 | // operator=(const charT* s); // constexpr since C++20 |
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| 13 | |
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| 14 | #include <string> |
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| 15 | #include <cassert> |
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| 16 | |
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| 17 | #include "test_macros.h" |
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| 18 | #include "min_allocator.h" |
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| 19 | #include "asan_testing.h" |
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| 20 | |
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| 21 | template <class S> |
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| 22 | TEST_CONSTEXPR_CXX20 void test(S s1, const typename S::value_type* s2) { |
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| 23 | typedef typename S::traits_type T; |
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| 24 | s1 = s2; |
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| 25 | LIBCPP_ASSERT(s1.__invariants()); |
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| 26 | assert(s1.size() == T::length(s2)); |
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| 27 | assert(T::compare(s1.data(), s2, s1.size()) == 0); |
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| 28 | assert(s1.capacity() >= s1.size()); |
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| 29 | LIBCPP_ASSERT(is_string_asan_correct(s1)); |
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| 30 | } |
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| 31 | |
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| 32 | template <class S> |
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| 33 | TEST_CONSTEXPR_CXX20 void test_string() { |
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| 34 | test(S(), "" ); |
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| 35 | test(S("1" ), "" ); |
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| 36 | test(S(), "1" ); |
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| 37 | test(S("1" ), "2" ); |
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| 38 | test(S("1" ), "2" ); |
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| 39 | |
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| 40 | test(S(), "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" ); |
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| 41 | test(S("123456789" ), "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" ); |
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| 42 | test(S("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" ), "123456789" ); |
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| 43 | test(S("1234567890123456789012345678901234567890123456789012345678901234567890" ), |
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| 44 | "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" ); |
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| 45 | test(S("1234567890123456789012345678901234567890123456789012345678901234567890" |
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| 46 | "1234567890123456789012345678901234567890123456789012345678901234567890" ), |
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| 47 | "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz" ); |
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| 48 | } |
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| 49 | |
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| 50 | TEST_CONSTEXPR_CXX20 bool test() { |
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| 51 | test_string<std::string>(); |
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| 52 | #if TEST_STD_VER >= 11 |
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| 53 | test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>(); |
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| 54 | test_string<std::basic_string<char, std::char_traits<char>, safe_allocator<char>>>(); |
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| 55 | #endif |
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| 56 | |
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| 57 | return true; |
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| 58 | } |
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| 59 | |
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| 60 | int main(int, char**) { |
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| 61 | test(); |
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| 62 | #if TEST_STD_VER > 17 |
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| 63 | static_assert(test()); |
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| 64 | #endif |
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| 65 | |
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| 66 | return 0; |
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| 67 | } |
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| 68 | |
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