| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++98, c++03, c++11 |
| |
| // <experimental/iterator> |
| // |
| // template <class _Delim, class _CharT = char, class _Traits = char_traits<_CharT>> |
| // class ostream_joiner; |
| // |
| // template<typename T> |
| // ostream_joiner & operator=(const T&) |
| // |
| |
| #include <experimental/iterator> |
| #include <iostream> |
| #include <sstream> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "test_iterators.h" |
| |
| struct mutating_delimiter { |
| mutating_delimiter(char c = ' ') : c_(c) {} |
| char get () const { return c_++; } |
| mutable char c_; |
| }; |
| |
| template<class _CharT, class _Traits> |
| std::basic_ostream<_CharT, _Traits>& |
| operator<<(std::basic_ostream<_CharT, _Traits>& os, const mutating_delimiter &d) |
| { return os << d.get(); } |
| |
| |
| struct mutating_delimiter2 { // same as above, w/o the const and the mutable |
| mutating_delimiter2(char c = ' ') : c_(c) {} |
| char get () { return c_++; } |
| char c_; |
| }; |
| |
| template<class _CharT, class _Traits> |
| std::basic_ostream<_CharT, _Traits>& |
| operator<<(std::basic_ostream<_CharT, _Traits>& os, mutating_delimiter2 &d) |
| { return os << d.get(); } |
| |
| |
| namespace exp = std::experimental; |
| |
| template <class Delim, class Iter, class CharT = char, class Traits = std::char_traits<CharT>> |
| void test (Delim &&d, Iter first, Iter last, const CharT *expected ) { |
| typedef exp::ostream_joiner<typename std::decay<Delim>::type, CharT, Traits> Joiner; |
| |
| static_assert((std::is_copy_constructible<Joiner>::value == std::is_copy_constructible<typename std::decay<Delim>::type>::value), "" ); |
| static_assert((std::is_move_constructible<Joiner>::value == std::is_move_constructible<typename std::decay<Delim>::type>::value), "" ); |
| static_assert((std::is_copy_assignable<Joiner> ::value == std::is_copy_assignable<typename std::decay<Delim>::type> ::value), "" ); |
| static_assert((std::is_move_assignable<Joiner> ::value == std::is_move_assignable<typename std::decay<Delim>::type> ::value), "" ); |
| |
| std::basic_stringstream<CharT, Traits> sstream; |
| Joiner joiner(sstream, d); |
| while (first != last) |
| *joiner++ = *first++; |
| assert(sstream.str() == expected); |
| } |
| |
| int main () { |
| { |
| const char chars[] = "0123456789"; |
| const int ints [] = { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 }; |
| |
| test('X', chars, chars+10, "0X1X2X3X4X5X6X7X8X9"); |
| test('x', ints, ints+10, "10x11x12x13x14x15x16x17x18x19"); |
| test('X', input_iterator<const char*>(chars), input_iterator<const char*>(chars+10), "0X1X2X3X4X5X6X7X8X9"); |
| test('x', input_iterator<const int*>(ints), input_iterator<const int*>(ints+10), "10x11x12x13x14x15x16x17x18x19"); |
| test('X', forward_iterator<const char*>(chars), forward_iterator<const char*>(chars+10), "0X1X2X3X4X5X6X7X8X9"); |
| test('x', forward_iterator<const int*>(ints), forward_iterator<const int*>(ints+10), "10x11x12x13x14x15x16x17x18x19"); |
| test('X', random_access_iterator<const char*>(chars), random_access_iterator<const char*>(chars+10), "0X1X2X3X4X5X6X7X8X9"); |
| test('x', random_access_iterator<const int*>(ints), random_access_iterator<const int*>(ints+10), "10x11x12x13x14x15x16x17x18x19"); |
| |
| test("Z", chars, chars+10, "0Z1Z2Z3Z4Z5Z6Z7Z8Z9"); |
| test("z", ints, ints+10, "10z11z12z13z14z15z16z17z18z19"); |
| |
| test<char, const char *, wchar_t> ('X', chars, chars+10, L"0X1X2X3X4X5X6X7X8X9"); |
| test<char, const int *, wchar_t> ('x', ints, ints+10, L"10x11x12x13x14x15x16x17x18x19"); |
| // test<char, const char *, char16_t>('X', chars, chars+10, u"0X1X2X3X4X5X6X7X8X9"); |
| // test<char, const int *, char16_t>('x', ints, ints+10, u"10x11x12x13x14x15x16x17x18x19"); |
| // test<char, const char *, char32_t>('X', chars, chars+10, U"0X1X2X3X4X5X6X7X8X9"); |
| // test<char, const int *, char32_t>('x', ints, ints+10, U"10x11x12x13x14x15x16x17x18x19"); |
| |
| test(mutating_delimiter(), chars, chars+10, "0 1!2\"3#4$5%6&7'8(9"); |
| test(mutating_delimiter2(), chars, chars+10, "0 1!2\"3#4$5%6&7'8(9"); |
| } |
| |
| { |
| const wchar_t chars[] = L"0123456789"; |
| const int ints [] = { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 }; |
| test(L'X', chars, chars+10, L"0X1X2X3X4X5X6X7X8X9"); |
| test(L'x', ints, ints+10, L"10x11x12x13x14x15x16x17x18x19"); |
| test(L'X', input_iterator<const wchar_t*>(chars), input_iterator<const wchar_t*>(chars+10), L"0X1X2X3X4X5X6X7X8X9"); |
| test(L'x', input_iterator<const int*>(ints), input_iterator<const int*>(ints+10), L"10x11x12x13x14x15x16x17x18x19"); |
| test(L'X', forward_iterator<const wchar_t*>(chars), forward_iterator<const wchar_t*>(chars+10), L"0X1X2X3X4X5X6X7X8X9"); |
| test(L'x', forward_iterator<const int*>(ints), forward_iterator<const int*>(ints+10), L"10x11x12x13x14x15x16x17x18x19"); |
| test(L'X', random_access_iterator<const wchar_t*>(chars), random_access_iterator<const wchar_t*>(chars+10), L"0X1X2X3X4X5X6X7X8X9"); |
| test(L'x', random_access_iterator<const int*>(ints), random_access_iterator<const int*>(ints+10), L"10x11x12x13x14x15x16x17x18x19"); |
| |
| test(L"Z", chars, chars+10, L"0Z1Z2Z3Z4Z5Z6Z7Z8Z9"); |
| test(L"z", ints, ints+10, L"10z11z12z13z14z15z16z17z18z19"); |
| |
| test<char, const wchar_t *, wchar_t> ('X', chars, chars+10, L"0X1X2X3X4X5X6X7X8X9"); |
| test<char, const int *, wchar_t> ('x', ints, ints+10, L"10x11x12x13x14x15x16x17x18x19"); |
| |
| test(mutating_delimiter(), chars, chars+10, L"0 1!2\"3#4$5%6&7'8(9"); |
| } |
| |
| } |