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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20, c++23
// <sstream>
// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
// class basic_istringstream
// template<class T>
// void str(const T& t);
#include <cassert>
#include <memory>
#include <sstream>
#include <string>
#include <string_view>
#include "constexpr_char_traits.h"
#include "nasty_string.h"
#include "test_allocator.h"
#include "test_macros.h"
#include "../../helper_concepts.h"
#include "../../helper_string_macros.h"
#include "../../helper_types.h"
template <typename AllocT = std::allocator<nasty_char>>
void test_sfinae_with_nasty_char() {
using NStrStream = std::basic_istringstream<nasty_char, nasty_char_traits, AllocT>;
static_assert(is_valid_argument_for_str_member<NStrStream, nasty_char*>);
static_assert(is_valid_argument_for_str_member<NStrStream, const nasty_char*>);
}
template <typename CharT, typename TraitsT = std::char_traits<CharT>, typename AllocT = std::allocator<CharT>>
void test_sfinae() {
using StrStream = std::basic_istringstream<CharT, TraitsT, AllocT>;
static_assert(is_valid_argument_for_str_member<StrStream, CharT*>);
static_assert(is_valid_argument_for_str_member<StrStream, const CharT*>);
static_assert(is_valid_argument_for_str_member<StrStream, std::basic_string_view<CharT, TraitsT>>);
static_assert(is_valid_argument_for_str_member<StrStream, std::basic_string<CharT, TraitsT, AllocT>>);
static_assert(is_valid_argument_for_str_member<StrStream, ConstConvertibleStringView<CharT, TraitsT>>);
static_assert(!is_valid_argument_for_str_member<StrStream, CharT>);
static_assert(!is_valid_argument_for_str_member<StrStream, int>);
static_assert(!is_valid_argument_for_str_member<StrStream, SomeObject>);
static_assert(!is_valid_argument_for_str_member<StrStream, std::nullptr_t>);
static_assert(!is_valid_argument_for_str_member<StrStream, NonConstConvertibleStringView<CharT, TraitsT>>);
}
template <typename CharT, typename TraitsT = std::char_traits<CharT>, typename AllocT = std::allocator<CharT>>
void test() {
AllocT allocator;
std::basic_istringstream<CharT, TraitsT, AllocT> ss(std::ios_base::binary, allocator);
assert(ss.str().empty());
// const CharT*
ss.str(CS("ba"));
assert(ss.str() == CS("ba"));
// std::basic_string_view<CharT>
ss.str(SV("ma"));
assert(ss.str() == CS("ma"));
// std::basic_string<CharT>
ss.str(ST("zmt", allocator));
assert(ss.str() == CS("zmt"));
// ConstConvertibleStringView<CharT>
ss.str(ConstConvertibleStringView<CharT, TraitsT>{CS("da")});
assert(ss.str() == CS("da"));
const std::basic_string<CharT, TraitsT, AllocT> s(allocator);
ss.str(s);
assert(ss.str().empty());
}
int main(int, char**) {
test_sfinae_with_nasty_char();
test_sfinae_with_nasty_char<test_allocator<nasty_char>>();
test_sfinae<char>();
test_sfinae<char, constexpr_char_traits<char>, std::allocator<char>>();
test_sfinae<char, std::char_traits<char>, test_allocator<char>>();
test_sfinae<char, constexpr_char_traits<char>, test_allocator<char>>();
test<char>();
test<char, constexpr_char_traits<char>, std::allocator<char>>();
test<char, std::char_traits<char>, test_allocator<char>>();
test<char, constexpr_char_traits<char>, test_allocator<char>>();
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
test_sfinae<wchar_t>();
test_sfinae<wchar_t, constexpr_char_traits<wchar_t>, std::allocator<wchar_t>>();
test_sfinae<wchar_t, std::char_traits<wchar_t>, test_allocator<wchar_t>>();
test_sfinae<wchar_t, constexpr_char_traits<wchar_t>, test_allocator<wchar_t>>();
test<wchar_t>();
test<wchar_t, constexpr_char_traits<wchar_t>, std::allocator<wchar_t>>();
test<wchar_t, std::char_traits<wchar_t>, test_allocator<wchar_t>>();
test<wchar_t, constexpr_char_traits<wchar_t>, test_allocator<wchar_t>>();
#endif
return 0;
}
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