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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>
// template<class InputIterator>
// basic_string(InputIterator begin, InputIterator end,
// const Allocator& a = Allocator()); // constexpr since C++20
#include <string>
#include <iterator>
#include <cassert>
#include <cstddef>
#include "test_macros.h"
#include "test_allocator.h"
#include "test_iterators.h"
#include "min_allocator.h"
template <class It>
TEST_CONSTEXPR_CXX20 void
test(It first, It last)
{
typedef typename std::iterator_traits<It>::value_type charT;
typedef std::basic_string<charT, std::char_traits<charT>, test_allocator<charT> > S;
typedef typename S::allocator_type A;
S s2(first, last);
LIBCPP_ASSERT(s2.__invariants());
assert(s2.size() == static_cast<std::size_t>(std::distance(first, last)));
unsigned i = 0;
for (It it = first; it != last;) {
assert(s2[i] == *it);
++it;
++i;
}
assert(s2.get_allocator() == A());
assert(s2.capacity() >= s2.size());
}
template <class It, class A>
TEST_CONSTEXPR_CXX20 void
test(It first, It last, const A& a)
{
typedef typename std::iterator_traits<It>::value_type charT;
typedef std::basic_string<charT, std::char_traits<charT>, A> S;
S s2(first, last, a);
LIBCPP_ASSERT(s2.__invariants());
assert(s2.size() == static_cast<std::size_t>(std::distance(first, last)));
unsigned i = 0;
for (It it = first; it != last;) {
assert(s2[i] == *it);
++it;
++i;
}
assert(s2.get_allocator() == a);
assert(s2.capacity() >= s2.size());
}
TEST_CONSTEXPR_CXX20 bool test() {
{
typedef test_allocator<char> A;
const char* s = "12345678901234567890123456789012345678901234567890";
test(s, s);
test(s, s, A(2));
test(s, s+1);
test(s, s+1, A(2));
test(s, s+10);
test(s, s+10, A(2));
test(s, s+50);
test(s, s+50, A(2));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s), A(2));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+1));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+1), A(2));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+10));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+10), A(2));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+50));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+50), A(2));
}
#if TEST_STD_VER >= 11
{
typedef min_allocator<char> A;
const char* s = "12345678901234567890123456789012345678901234567890";
test(s, s);
test(s, s, A());
test(s, s+1);
test(s, s+1, A());
test(s, s+10);
test(s, s+10, A());
test(s, s+50);
test(s, s+50, A());
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s), A());
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+1));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+1), A());
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+10));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+10), A());
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+50));
test(cpp17_input_iterator<const char*>(s), cpp17_input_iterator<const char*>(s+50), A());
}
#endif
{
static_assert((!std::is_constructible<std::string, std::string,
std::string>::value),
"");
static_assert(
(!std::is_constructible<std::string, std::string, std::string,
std::allocator<char> >::value),
"");
}
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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