forked from mirror/libcxx
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
3.7 KiB
C++
82 lines
3.7 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <algorithm>
|
|
|
|
// template<ForwardIterator Iter1, ForwardIterator Iter2>
|
|
// requires HasEqualTo<Iter1::value_type, Iter2::value_type>
|
|
// constexpr Iter1 // constexpr after C++17
|
|
// find_end(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2);
|
|
|
|
#include <algorithm>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "test_iterators.h"
|
|
|
|
#if TEST_STD_VER > 17
|
|
TEST_CONSTEXPR bool test_constexpr() {
|
|
int ia[] = {0, 1, 2};
|
|
int ib[] = {4, 5, 6};
|
|
int ic[] = {0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 0, 1, 2, 3, 0, 1, 2, 0, 1, 0};
|
|
typedef forward_iterator<int*> FI;
|
|
typedef bidirectional_iterator<int*> BI;
|
|
typedef random_access_iterator<int*> RI;
|
|
|
|
return (std::find_end(FI(std::begin(ic)), FI(std::end(ic)), FI(std::begin(ia)), FI(std::end(ia))) == FI(ic+15))
|
|
&& (std::find_end(FI(std::begin(ic)), FI(std::end(ic)), FI(std::begin(ib)), FI(std::end(ib))) == FI(std::end(ic)))
|
|
&& (std::find_end(BI(std::begin(ic)), BI(std::end(ic)), BI(std::begin(ia)), BI(std::end(ia))) == BI(ic+15))
|
|
&& (std::find_end(BI(std::begin(ic)), BI(std::end(ic)), BI(std::begin(ib)), BI(std::end(ib))) == BI(std::end(ic)))
|
|
&& (std::find_end(RI(std::begin(ic)), RI(std::end(ic)), RI(std::begin(ia)), RI(std::end(ia))) == RI(ic+15))
|
|
&& (std::find_end(RI(std::begin(ic)), RI(std::end(ic)), RI(std::begin(ib)), RI(std::end(ib))) == RI(std::end(ic)))
|
|
;
|
|
}
|
|
#endif
|
|
|
|
template <class Iter1, class Iter2>
|
|
void
|
|
test()
|
|
{
|
|
int ia[] = {0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 0, 1, 2, 3, 0, 1, 2, 0, 1, 0};
|
|
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
|
|
int b[] = {0};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(b), Iter2(b+1)) == Iter1(ia+sa-1));
|
|
int c[] = {0, 1};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(c), Iter2(c+2)) == Iter1(ia+18));
|
|
int d[] = {0, 1, 2};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(d), Iter2(d+3)) == Iter1(ia+15));
|
|
int e[] = {0, 1, 2, 3};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(e), Iter2(e+4)) == Iter1(ia+11));
|
|
int f[] = {0, 1, 2, 3, 4};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(f), Iter2(f+5)) == Iter1(ia+6));
|
|
int g[] = {0, 1, 2, 3, 4, 5};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(g), Iter2(g+6)) == Iter1(ia));
|
|
int h[] = {0, 1, 2, 3, 4, 5, 6};
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(h), Iter2(h+7)) == Iter1(ia+sa));
|
|
assert(std::find_end(Iter1(ia), Iter1(ia+sa), Iter2(b), Iter2(b)) == Iter1(ia+sa));
|
|
assert(std::find_end(Iter1(ia), Iter1(ia), Iter2(b), Iter2(b+1)) == Iter1(ia));
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test<forward_iterator<const int*>, forward_iterator<const int*> >();
|
|
test<forward_iterator<const int*>, bidirectional_iterator<const int*> >();
|
|
test<forward_iterator<const int*>, random_access_iterator<const int*> >();
|
|
test<bidirectional_iterator<const int*>, forward_iterator<const int*> >();
|
|
test<bidirectional_iterator<const int*>, bidirectional_iterator<const int*> >();
|
|
test<bidirectional_iterator<const int*>, random_access_iterator<const int*> >();
|
|
test<random_access_iterator<const int*>, forward_iterator<const int*> >();
|
|
test<random_access_iterator<const int*>, bidirectional_iterator<const int*> >();
|
|
test<random_access_iterator<const int*>, random_access_iterator<const int*> >();
|
|
|
|
#if TEST_STD_VER > 17
|
|
static_assert(test_constexpr());
|
|
#endif
|
|
}
|