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.
94 lines
3.1 KiB
C++
94 lines
3.1 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<InputIterator Iter1, InputIterator Iter2>
|
|
// requires HasEqualTo<Iter1::value_type, Iter2::value_type>
|
|
// constexpr pair<Iter1, Iter2> // constexpr after c++17
|
|
// mismatch(Iter1 first1, Iter1 last1, Iter2 first2);
|
|
//
|
|
// template<InputIterator Iter1, InputIterator Iter2Pred>
|
|
// constexpr pair<Iter1, Iter2> // constexpr after c++17
|
|
// mismatch(Iter1 first1, Iter1 last1, Iter2 first2, Iter2 last2); // C++14
|
|
|
|
#include <algorithm>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "test_iterators.h"
|
|
|
|
#if TEST_STD_VER > 17
|
|
TEST_CONSTEXPR bool test_constexpr() {
|
|
int ia[] = {1, 3, 6, 7};
|
|
int ib[] = {1, 3};
|
|
int ic[] = {1, 3, 5, 7};
|
|
typedef input_iterator<int*> II;
|
|
typedef bidirectional_iterator<int*> BI;
|
|
|
|
auto p1 = std::mismatch(std::begin(ia), std::end(ia), std::begin(ic));
|
|
if (p1.first != ia+2 || p1.second != ic+2)
|
|
return false;
|
|
|
|
auto p2 = std::mismatch(std::begin(ia), std::end(ia), std::begin(ic), std::end(ic));
|
|
if (p2.first != ia+2 || p2.second != ic+2)
|
|
return false;
|
|
|
|
auto p3 = std::mismatch(std::begin(ib), std::end(ib), std::begin(ic));
|
|
if (p3.first != ib+2 || p3.second != ic+2)
|
|
return false;
|
|
|
|
auto p4 = std::mismatch(std::begin(ib), std::end(ib), std::begin(ic), std::end(ic));
|
|
if (p4.first != ib+2 || p4.second != ic+2)
|
|
return false;
|
|
|
|
auto p5 = std::mismatch(II(std::begin(ib)), II(std::end(ib)), II(std::begin(ic)));
|
|
if (p5.first != II(ib+2) || p5.second != II(ic+2))
|
|
return false;
|
|
auto p6 = std::mismatch(BI(std::begin(ib)), BI(std::end(ib)), BI(std::begin(ic)), BI(std::end(ic)));
|
|
if (p6.first != BI(ib+2) || p6.second != BI(ic+2))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
int main()
|
|
{
|
|
int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
|
|
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
|
|
int ib[] = {0, 1, 2, 3, 0, 1, 2, 3};
|
|
const unsigned sb = sizeof(ib)/sizeof(ib[0]); ((void)sb); // unused in C++11
|
|
|
|
typedef input_iterator<const int*> II;
|
|
typedef random_access_iterator<const int*> RAI;
|
|
|
|
assert(std::mismatch(II(ia), II(ia + sa), II(ib))
|
|
== (std::pair<II, II>(II(ia+3), II(ib+3))));
|
|
|
|
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib))
|
|
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
|
|
|
|
#if TEST_STD_VER > 11 // We have the four iteration version
|
|
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib+sb))
|
|
== (std::pair<II, II>(II(ia+3), II(ib+3))));
|
|
|
|
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib), RAI(ib+sb))
|
|
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
|
|
|
|
|
|
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib+2))
|
|
== (std::pair<II, II>(II(ia+2), II(ib+2))));
|
|
#endif
|
|
|
|
#if TEST_STD_VER > 17
|
|
static_assert(test_constexpr());
|
|
#endif
|
|
}
|