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