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implement ostream_joiner. Reviewed as http://reviews.llvm.org/D16605 

llvm-svn: 259014
This commit is contained in:
Marshall Clow 2016-01-28 04:14:56 +00:00
parent fbfe5ec4a4
commit e046bbdded
7 changed files with 381 additions and 0 deletions
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12
libcxx/test/std/experimental/iterator/nothing_to_do.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 () {}

58
libcxx/test/std/experimental/iterator/ostream.joiner/ostream.joiner.cons/ostream_joiner.cons.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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); }
}

53
libcxx/test/std/experimental/iterator/ostream.joiner/ostream.joiner.creation/make_ostream_joiner.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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);
typedef exp::ostream_joiner<typename std::decay<Delim>::type, CharT, Traits> Joiner;
static_assert((std::is_same<decltype(joiner), Joiner>::value), "" );
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");
}

120
libcxx/test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.assign.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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");
}
}

46
libcxx/test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.postincrement.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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); }
}

46
libcxx/test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.pretincrement.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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); }
}

46
libcxx/test/std/experimental/iterator/ostream.joiner/ostream.joiner.ops/ostream_joiner.op.star.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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); }
}