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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <string>
// iterator insert(const_iterator p, charT c); // constexpr since C++20
#include <string>
#include <stdexcept>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
#include "asan_testing.h"
template <class S>
TEST_CONSTEXPR_CXX20 void test(S& s, typename S::const_iterator p, typename S::value_type c, S expected) {
LIBCPP_ASSERT(is_string_asan_correct(s));
bool sufficient_cap = s.size() < s.capacity();
typename S::difference_type pos = p - s.begin();
typename S::iterator i = s.insert(p, c);
LIBCPP_ASSERT(s.__invariants());
assert(s == expected);
assert(i - s.begin() == pos);
assert(*i == c);
if (sufficient_cap)
assert(i == p);
LIBCPP_ASSERT(is_string_asan_correct(s));
}
template <class S>
TEST_CONSTEXPR_CXX20 void test_string() {
S s;
test(s, s.begin(), '1', S("1"));
test(s, s.begin(), 'a', S("a1"));
test(s, s.end(), 'b', S("a1b"));
test(s, s.end() - 1, 'c', S("a1cb"));
test(s, s.end() - 2, 'd', S("a1dcb"));
test(s, s.end() - 3, '2', S("a12dcb"));
test(s, s.end() - 4, '3', S("a132dcb"));
test(s, s.end() - 5, '4', S("a1432dcb"));
test(s, s.begin() + 1, '5', S("a51432dcb"));
test(s, s.begin() + 2, '6', S("a561432dcb"));
test(s, s.begin() + 3, '7', S("a5671432dcb"));
test(s, s.begin() + 4, 'A', S("a567A1432dcb"));
test(s, s.begin() + 5, 'B', S("a567AB1432dcb"));
test(s, s.begin() + 6, 'C', S("a567ABC1432dcb"));
test(s, s.begin(), 'x', S("xa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin(), 'x', S("xxxxxxxxxxxxxxxxa567ABC1432dcb"));
test(s, s.begin() + 1, 'x', S("xxxxxxxxxxxxxxxxxa567ABC1432dcb"));
}
TEST_CONSTEXPR_CXX20 bool test() {
test_string<std::string>();
#if TEST_STD_VER >= 11
test_string<std::basic_string<char, std::char_traits<char>, min_allocator<char>>>();
test_string<std::basic_string<char, std::char_traits<char>, safe_allocator<char>>>();
#endif
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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