| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11 |
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| 10 | // UNSUPPORTED: no-localization |
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| 11 | |
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| 12 | // <experimental/iterator> |
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| 13 | // |
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| 14 | // template <class _Delim, class _CharT = char, class _Traits = char_traits<_CharT>> |
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| 15 | // class ostream_joiner; |
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| 16 | // |
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| 17 | // template <class _CharT, class _Traits, class _Delim> |
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| 18 | // ostream_joiner<typename decay<_Delim>::type, _CharT, _Traits> |
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| 19 | // make_ostream_joiner(basic_ostream<_CharT, _Traits>& __os, _Delim && __d); |
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| 20 | // |
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| 21 | |
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| 22 | #include <experimental/iterator> |
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| 23 | #include <iostream> |
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| 24 | #include <sstream> |
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| 25 | #include <cassert> |
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| 26 | |
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| 27 | #include "test_macros.h" |
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| 28 | #include "test_iterators.h" |
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| 29 | |
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| 30 | namespace exper = std::experimental; |
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| 31 | |
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| 32 | template <class Delim, class Iter, class CharT = char, class Traits = std::char_traits<CharT>> |
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| 33 | void test (Delim &&d, Iter first, Iter last, const CharT *expected ) { |
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| 34 | std::basic_stringstream<CharT, Traits> sstream; |
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| 35 | auto joiner = exper::make_ostream_joiner(sstream, d); |
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| 36 | typedef exper::ostream_joiner<typename std::decay<Delim>::type, CharT, Traits> Joiner; |
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| 37 | static_assert((std::is_same<decltype(joiner), Joiner>::value), "" ); |
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| 38 | while (first != last) |
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| 39 | joiner = *first++; |
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| 40 | assert(sstream.str() == expected); |
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| 41 | } |
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| 42 | |
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| 43 | int main(int, char**) { |
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| 44 | const char chars[] = "0123456789" ; |
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| 45 | const int ints [] = { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 }; |
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| 46 | |
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| 47 | // There are more of these tests in another file. |
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| 48 | // This is just to make sure that the ostream_joiner is created correctly |
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| 49 | test(d: 'X', first: chars, last: chars+10, expected: "0X1X2X3X4X5X6X7X8X9" ); |
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| 50 | test(d: 'x', first: ints, last: ints+10, expected: "10x11x12x13x14x15x16x17x18x19" ); |
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| 51 | test(d: "Z" , first: chars, last: chars+10, expected: "0Z1Z2Z3Z4Z5Z6Z7Z8Z9" ); |
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| 52 | test(d: "z" , first: ints, last: ints+10, expected: "10z11z12z13z14z15z16z17z18z19" ); |
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| 53 | |
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| 54 | return 0; |
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| 55 | } |
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| 56 | |
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