mclow.lists created this revision.
mclow.lists added reviewers: EricWF, howard.hinnant.
mclow.lists added a subscriber: cfe-commits.
This is part of the Library Fundamentals 2 TS
http://reviews.llvm.org/D16605
Files:
include/experimental/iterator
test/std/experimental/iterator/nothing_to_do.pass.cpp
test/std/experimental/iterator/ostream.joiner/ostream.joiner.cons/ostream_joiner.cons.pass.cpp
test/std/experimental/iterator/ostream.joiner/ostream.joiner.creation/make_ostream_joiner.pass.cpp
test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.assign.pass.cpp
test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.postincrement.pass.cpp
test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.pretincrement.pass.cpp
test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.star.pass.cpp
Index: test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.star.pass.cpp
===================================================================
--- test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.star.pass.cpp
+++ test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.star.pass.cpp
@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+// 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;
+//
+// ostream_joiner & operator*() noexcept
+// returns *this;
+
+#include <experimental/iterator>
+#include <iostream>
+#include <cassert>
+
+#include "test_macros.h"
+
+namespace exp = std::experimental;
+
+template <class Delim, class CharT, class Traits>
+void test ( exp::ostream_joiner<Delim, CharT, Traits> &oj ) {
+ static_assert((noexcept(*oj)), "" );
+ exp::ostream_joiner<Delim, CharT, Traits> &ret = *oj;
+ assert( &ret == &oj );
+ }
+
+int main () {
+
+ { exp::ostream_joiner<char> oj(std::cout, '8'); test(oj); }
+ { exp::ostream_joiner<std::string> oj(std::cout, std::string("9")); test(oj); }
+ { exp::ostream_joiner<std::wstring> oj(std::cout, std::wstring(L"10")); test(oj); }
+ { exp::ostream_joiner<int> oj(std::cout, 11); test(oj); }
+
+ { exp::ostream_joiner<char, wchar_t> oj(std::wcout, '8'); test(oj); }
+ { exp::ostream_joiner<std::string, wchar_t> oj(std::wcout, std::string("9")); test(oj); }
+ { exp::ostream_joiner<std::wstring, wchar_t> oj(std::wcout, std::wstring(L"10")); test(oj); }
+ { exp::ostream_joiner<int, wchar_t> oj(std::wcout, 11); test(oj); }
+ }
Index: test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.pretincrement.pass.cpp
===================================================================
--- test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.pretincrement.pass.cpp
+++ test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.pretincrement.pass.cpp
@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+// 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;
+//
+// ostream_joiner & operator++() noexcept
+// returns *this;
+
+#include <experimental/iterator>
+#include <iostream>
+#include <cassert>
+
+#include "test_macros.h"
+
+namespace exp = std::experimental;
+
+template <class Delim, class CharT, class Traits>
+void test ( exp::ostream_joiner<Delim, CharT, Traits> &oj ) {
+ static_assert((noexcept(++oj)), "" );
+ exp::ostream_joiner<Delim, CharT, Traits> &ret = ++oj;
+ assert( &ret == &oj );
+ }
+
+int main () {
+
+ { exp::ostream_joiner<char> oj(std::cout, '8'); test(oj); }
+ { exp::ostream_joiner<std::string> oj(std::cout, std::string("9")); test(oj); }
+ { exp::ostream_joiner<std::wstring> oj(std::cout, std::wstring(L"10")); test(oj); }
+ { exp::ostream_joiner<int> oj(std::cout, 11); test(oj); }
+
+ { exp::ostream_joiner<char, wchar_t> oj(std::wcout, '8'); test(oj); }
+ { exp::ostream_joiner<std::string, wchar_t> oj(std::wcout, std::string("9")); test(oj); }
+ { exp::ostream_joiner<std::wstring, wchar_t> oj(std::wcout, std::wstring(L"10")); test(oj); }
+ { exp::ostream_joiner<int, wchar_t> oj(std::wcout, 11); test(oj); }
+ }
Index: test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.postincrement.pass.cpp
===================================================================
--- test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.postincrement.pass.cpp
+++ test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.postincrement.pass.cpp
@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+// 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;
+//
+// ostream_joiner & operator++(int) noexcept
+// returns *this;
+
+#include <experimental/iterator>
+#include <iostream>
+#include <cassert>
+
+#include "test_macros.h"
+
+namespace exp = std::experimental;
+
+template <class Delim, class CharT, class Traits>
+void test ( exp::ostream_joiner<Delim, CharT, Traits> &oj ) {
+ static_assert((noexcept(oj++)), "" );
+ exp::ostream_joiner<Delim, CharT, Traits> &ret = oj++;
+ assert( &ret == &oj );
+ }
+
+int main () {
+
+ { exp::ostream_joiner<char> oj(std::cout, '8'); test(oj); }
+ { exp::ostream_joiner<std::string> oj(std::cout, std::string("9")); test(oj); }
+ { exp::ostream_joiner<std::wstring> oj(std::cout, std::wstring(L"10")); test(oj); }
+ { exp::ostream_joiner<int> oj(std::cout, 11); test(oj); }
+
+ { exp::ostream_joiner<char, wchar_t> oj(std::wcout, '8'); test(oj); }
+ { exp::ostream_joiner<std::string, wchar_t> oj(std::wcout, std::string("9")); test(oj); }
+ { exp::ostream_joiner<std::wstring, wchar_t> oj(std::wcout, std::wstring(L"10")); test(oj); }
+ { exp::ostream_joiner<int, wchar_t> oj(std::wcout, 11); test(oj); }
+ }
Index: test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.assign.pass.cpp
===================================================================
--- test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.assign.pass.cpp
+++ test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.assign.pass.cpp
@@ -0,0 +1,99 @@
+//===----------------------------------------------------------------------===//
+//
+// 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(); }
+
+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 ) {
+ std::basic_stringstream<CharT, Traits> sstream;
+ exp::ostream_joiner<typename std::decay<Delim>::type, CharT, Traits> 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");
+ }
+
+ {
+ 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");
+ }
+
+}
Index: test/std/experimental/iterator/ostream.joiner/ostream.joiner.creation/make_ostream_joiner.pass.cpp
===================================================================
--- test/std/experimental/iterator/ostream.joiner/ostream.joiner.creation/make_ostream_joiner.pass.cpp
+++ test/std/experimental/iterator/ostream.joiner/ostream.joiner.creation/make_ostream_joiner.pass.cpp
@@ -0,0 +1,51 @@
+//===----------------------------------------------------------------------===//
+//
+// 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 <class _CharT, class _Traits, class _Delim>
+// ostream_joiner<typename decay<_Delim>::type, _CharT, _Traits>
+// make_ostream_joiner(basic_ostream<_CharT, _Traits>& __os, _Delim && __d);
+//
+
+#include <experimental/iterator>
+#include <iostream>
+#include <sstream>
+#include <cassert>
+
+#include "test_macros.h"
+#include "test_iterators.h"
+
+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 ) {
+ std::basic_stringstream<CharT, Traits> sstream;
+ auto joiner = exp::make_ostream_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 };
+
+// There are more of these tests in another file.
+// This is just to make sure that the ostream_joiner is created correctly
+ test('X', chars, chars+10, "0X1X2X3X4X5X6X7X8X9");
+ test('x', ints, ints+10, "10x11x12x13x14x15x16x17x18x19");
+ test("Z", chars, chars+10, "0Z1Z2Z3Z4Z5Z6Z7Z8Z9");
+ test("z", ints, ints+10, "10z11z12z13z14z15z16z17z18z19");
+ }
Index: test/std/experimental/iterator/ostream.joiner/ostream.joiner.cons/ostream_joiner.cons.pass.cpp
===================================================================
--- test/std/experimental/iterator/ostream.joiner/ostream.joiner.cons/ostream_joiner.cons.pass.cpp
+++ test/std/experimental/iterator/ostream.joiner/ostream.joiner.cons/ostream_joiner.cons.pass.cpp
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+// 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;
+//
+// ostream_joiner(ostream_type& __os, _Delim&& __d);
+// ostream_joiner(ostream_type& __os, const _Delim& __d);
+
+#include <experimental/iterator>
+#include <iostream>
+#include <string>
+
+#include "test_macros.h"
+
+namespace exp = std::experimental;
+
+int main () {
+ const char eight = '8';
+ const std::string nine = "9";
+ const std::wstring ten = L"10";
+ const int eleven = 11;
+
+// Narrow streams w/rvalues
+ { exp::ostream_joiner<char> oj(std::cout, '8'); }
+ { exp::ostream_joiner<std::string> oj(std::cout, std::string("9")); }
+ { exp::ostream_joiner<std::wstring> oj(std::cout, std::wstring(L"10")); }
+ { exp::ostream_joiner<int> oj(std::cout, 11); }
+
+// Narrow streams w/lvalues
+ { exp::ostream_joiner<char> oj(std::cout, eight); }
+ { exp::ostream_joiner<std::string> oj(std::cout, nine); }
+ { exp::ostream_joiner<std::wstring> oj(std::cout, ten); }
+ { exp::ostream_joiner<int> oj(std::cout, eleven); }
+
+// Wide streams w/rvalues
+ { exp::ostream_joiner<char, wchar_t> oj(std::wcout, '8'); }
+ { exp::ostream_joiner<std::string, wchar_t> oj(std::wcout, std::string("9")); }
+ { exp::ostream_joiner<std::wstring, wchar_t> oj(std::wcout, std::wstring(L"10")); }
+ { exp::ostream_joiner<int, wchar_t> oj(std::wcout, 11); }
+
+// Wide streams w/lvalues
+ { exp::ostream_joiner<char, wchar_t> oj(std::wcout, eight); }
+ { exp::ostream_joiner<std::string, wchar_t> oj(std::wcout, nine); }
+ { exp::ostream_joiner<std::wstring, wchar_t> oj(std::wcout, ten); }
+ { exp::ostream_joiner<int, wchar_t> oj(std::wcout, eleven); }
+
+ }
Index: test/std/experimental/iterator/nothing_to_do.pass.cpp
===================================================================
--- test/std/experimental/iterator/nothing_to_do.pass.cpp
+++ test/std/experimental/iterator/nothing_to_do.pass.cpp
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+// 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.
+//
+//===----------------------------------------------------------------------===//
+
+#include <experimental/iterator>
+
+int main () {}
Index: include/experimental/iterator
===================================================================
--- include/experimental/iterator
+++ include/experimental/iterator
@@ -0,0 +1,114 @@
+// -*- C++ -*-
+//===----------------------------- iterator -------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_EXPERIMENTAL_ITERATOR
+#define _LIBCPP_EXPERIMENTAL_ITERATOR
+
+/*
+namespace std {
+ namespace experimental {
+ inline namespace fundamentals_v2 {
+
+ template <class DelimT, class charT = char, class traits = char_traits<charT>>
+ class ostream_joiner {
+ public:
+ typedef charT char_type;
+ typedef traits traits_type;
+ typedef basic_ostream<charT, traits> ostream_type;
+ typedef output_iterator_tag iterator_category;
+ typedef void value_type;
+ typedef void difference_type;
+ typedef void pointer;
+ typedef void reference;
+
+ ostream_joiner(ostream_type& s, const DelimT& delimiter);
+ ostream_joiner(ostream_type& s, DelimT&& delimiter);
+
+ template<typename T>
+ ostream_joiner& operator=(const T& value);
+
+ ostream_joiner& operator*() noexcept;
+ ostream_joiner& operator++() noexcept;
+ ostream_joiner& operator++(int) noexcept;
+ private:
+ ostream_type* out_stream; // exposition only
+ DelimT delim; // exposition only
+ bool first_element; // exposition only
+ };
+
+ template <class charT, class traits, class DelimT>
+ ostream_joiner<decay_t<DelimT>, charT, traits>
+ make_ostream_joiner(basic_ostream<charT, traits>& os, DelimT&& delimiter);
+
+ } // inline namespace fundamentals_v2
+ } // namespace experimental
+} // namespace std
+
+*/
+
+#include <experimental/__config>
+
+#if _LIBCPP_STD_VER > 11
+
+#include <iterator>
+
+_LIBCPP_BEGIN_NAMESPACE_LFTS
+
+template <class _Delim, class _CharT = char, class _Traits = char_traits<_CharT>>
+class ostream_joiner {
+public:
+
+ typedef _CharT char_type;
+ typedef _Traits traits_type;
+ typedef basic_ostream<char_type,traits_type> ostream_type;
+ typedef output_iterator_tag iterator_category;
+ typedef void value_type;
+ typedef void difference_type;
+ typedef void pointer;
+ typedef void reference;
+
+ ostream_joiner(ostream_type& __os, _Delim&& __d)
+ : __out(_VSTD::addressof(__os)), __delim(_VSTD::move(__d)), __first(true) {}
+
+ ostream_joiner(ostream_type& __os, const _Delim& __d)
+ : __out(_VSTD::addressof(__os)), __delim(__d), __first(true) {}
+
+
+ template<typename _Tp>
+ ostream_joiner& operator=(const _Tp& __v)
+ {
+ if (!__first)
+ *__out << __delim;
+ __first = false;
+ *__out << __v;
+ return *this;
+ }
+
+ ostream_joiner& operator*() _NOEXCEPT { return *this; }
+ ostream_joiner& operator++() _NOEXCEPT { return *this; }
+ ostream_joiner& operator++(int) _NOEXCEPT { return *this; }
+
+private:
+ ostream_type* __out;
+ _Delim __delim;
+ bool __first;
+};
+
+
+template <class _CharT, class _Traits, class _Delim>
+ostream_joiner<typename decay<_Delim>::type, _CharT, _Traits>
+make_ostream_joiner(basic_ostream<_CharT, _Traits>& __os, _Delim && __d)
+{ return ostream_joiner<typename decay<_Delim>::type, _CharT, _Traits>(__os, _VSTD::forward<_Delim>(__d)); }
+
+_LIBCPP_END_NAMESPACE_LFTS
+
+#endif /* _LIBCPP_STD_VER > 11 */
+
+#endif // _LIBCPP_EXPERIMENTAL_ITERATOR
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