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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.
//
//===----------------------------------------------------------------------===//
//
// <iterator>
// __libcpp_is_trivial_iterator<Tp>
// __libcpp_string_gets_noexcept_iterator determines if an iterator can be used
// w/o worrying about whether or not certain operations can throw.
// This gives us a "fast path for string operations"
//
#include <iterator>
#include <cassert>
#include <string>
#include <vector>
#include <initializer_list>
#include "test_macros.h"
#include "test_iterators.h"
#ifndef TEST_HAS_NO_EXCEPTIONS
static const bool expected = false;
#else
// Under libcpp-no-exceptions all noexcept expressions are trivially true, so
// any check for a noexcept returning false must actually check for it being
// true.
static const bool expected = true;
#endif
int main()
{
// basic tests
static_assert(( std::__libcpp_string_gets_noexcept_iterator<char *>::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<const char *>::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::move_iterator<char *> > ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::move_iterator<const char *> >::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::reverse_iterator<char *> > ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::reverse_iterator<const char *> >::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::__wrap_iter<char *> > ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::__wrap_iter<const char *> >::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::reverse_iterator<std::__wrap_iter<char *> > > ::value), "");
// iterators in the libc++ test suite
static_assert(std::__libcpp_string_gets_noexcept_iterator<output_iterator <char *> >::value == expected, "");
static_assert(std::__libcpp_string_gets_noexcept_iterator<input_iterator <char *> >::value == expected, "");
static_assert(std::__libcpp_string_gets_noexcept_iterator<forward_iterator <char *> >::value == expected, "");
static_assert(std::__libcpp_string_gets_noexcept_iterator<bidirectional_iterator<char *> >::value == expected, "");
static_assert(std::__libcpp_string_gets_noexcept_iterator<random_access_iterator<char *> >::value == expected, "");
static_assert(std::__libcpp_string_gets_noexcept_iterator<ThrowingIterator <char *> >::value == expected, "");
#if TEST_STD_VER >= 11
static_assert(( std::__libcpp_string_gets_noexcept_iterator<NonThrowingIterator <char *> >::value), "");
#else
static_assert(std::__libcpp_string_gets_noexcept_iterator<NonThrowingIterator <char *> >::value == expected, "");
#endif
//
// iterators from libc++'s containers
//
// string
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::vector<char>::iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::vector<char>::const_iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::vector<char>::reverse_iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::vector<char>::const_reverse_iterator>::value), "");
// vector
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::basic_string<char>::iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::basic_string<char>::const_iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::basic_string<char>::reverse_iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::basic_string<char>::const_reverse_iterator>::value), "");
#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
// Initializer list (which has no reverse iterators)
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::initializer_list<char>::iterator> ::value), "");
static_assert(( std::__libcpp_string_gets_noexcept_iterator<std::initializer_list<char>::const_iterator> ::value), "");
#endif
}
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