1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// <numeric> 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// template <InputIterator InIter, 130e20cae1a5be18fba591cd884aa2a389b66a3f49Howard Hinnant// OutputIterator<auto, const InIter::value_type&> OutIter> 140e20cae1a5be18fba591cd884aa2a389b66a3f49Howard Hinnant// requires HasMinus<InIter::value_type, InIter::value_type> 150e20cae1a5be18fba591cd884aa2a389b66a3f49Howard Hinnant// && Constructible<InIter::value_type, InIter::reference> 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// && OutputIterator<OutIter, 170e20cae1a5be18fba591cd884aa2a389b66a3f49Howard Hinnant// HasMinus<InIter::value_type, InIter::value_type>::result_type> 180e20cae1a5be18fba591cd884aa2a389b66a3f49Howard Hinnant// && MoveAssignable<InIter::value_type> 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// OutIter 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// adjacent_difference(InIter first, InIter last, OutIter result); 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <numeric> 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 25f4dfb45247a5b306ced6c71b2792530c1551078eEric Fiselier#include "test_macros.h" 2683e2c4d877fe2d7793868b1c6a5d9525a7c4d431Marshall Clow#include "test_iterators.h" 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttemplate <class InIter, class OutIter> 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantvoid 30bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnanttest() 31bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 32bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ia[] = {15, 10, 6, 3, 1}; 33bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ir[] = {15, -5, -4, -3, -2}; 34bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant const unsigned s = sizeof(ia) / sizeof(ia[0]); 35bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int ib[s] = {0}; 36bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant OutIter r = std::adjacent_difference(InIter(ia), InIter(ia+s), OutIter(ib)); 37bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(base(r) == ib + s); 38bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant for (unsigned i = 0; i < s; ++i) 39bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant assert(ib[i] == ir[i]); 40bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 41bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 42f4dfb45247a5b306ced6c71b2792530c1551078eEric Fiselier#if TEST_STD_VER >= 11 431c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 441c44f51de7392597b673b18f1b373810414816fdHoward Hinnantclass Y; 451c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 461c44f51de7392597b673b18f1b373810414816fdHoward Hinnantclass X 471c44f51de7392597b673b18f1b373810414816fdHoward Hinnant{ 481c44f51de7392597b673b18f1b373810414816fdHoward Hinnant int i_; 491c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 501c44f51de7392597b673b18f1b373810414816fdHoward Hinnant X& operator=(const X&); 511c44f51de7392597b673b18f1b373810414816fdHoward Hinnantpublic: 521c44f51de7392597b673b18f1b373810414816fdHoward Hinnant explicit X(int i) : i_(i) {} 531c44f51de7392597b673b18f1b373810414816fdHoward Hinnant X(const X& x) : i_(x.i_) {} 541c44f51de7392597b673b18f1b373810414816fdHoward Hinnant X& operator=(X&& x) 551c44f51de7392597b673b18f1b373810414816fdHoward Hinnant { 561c44f51de7392597b673b18f1b373810414816fdHoward Hinnant i_ = x.i_; 571c44f51de7392597b673b18f1b373810414816fdHoward Hinnant x.i_ = -1; 581c44f51de7392597b673b18f1b373810414816fdHoward Hinnant return *this; 591c44f51de7392597b673b18f1b373810414816fdHoward Hinnant } 601c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 611c44f51de7392597b673b18f1b373810414816fdHoward Hinnant friend X operator-(const X& x, const X& y) {return X(x.i_ - y.i_);} 621c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 631c44f51de7392597b673b18f1b373810414816fdHoward Hinnant friend class Y; 641c44f51de7392597b673b18f1b373810414816fdHoward Hinnant}; 651c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 661c44f51de7392597b673b18f1b373810414816fdHoward Hinnantclass Y 671c44f51de7392597b673b18f1b373810414816fdHoward Hinnant{ 681c44f51de7392597b673b18f1b373810414816fdHoward Hinnant int i_; 691c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 701c44f51de7392597b673b18f1b373810414816fdHoward Hinnant Y& operator=(const Y&); 711c44f51de7392597b673b18f1b373810414816fdHoward Hinnantpublic: 721c44f51de7392597b673b18f1b373810414816fdHoward Hinnant explicit Y(int i) : i_(i) {} 731c44f51de7392597b673b18f1b373810414816fdHoward Hinnant Y(const Y& y) : i_(y.i_) {} 741c44f51de7392597b673b18f1b373810414816fdHoward Hinnant void operator=(const X& x) {i_ = x.i_;} 751c44f51de7392597b673b18f1b373810414816fdHoward Hinnant}; 761c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 771c44f51de7392597b673b18f1b373810414816fdHoward Hinnant#endif 781c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 79bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint main() 80bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 81bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, output_iterator<int*> >(); 82bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, forward_iterator<int*> >(); 83bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, bidirectional_iterator<int*> >(); 84bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, random_access_iterator<int*> >(); 85bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<input_iterator<const int*>, int*>(); 86bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 87bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, output_iterator<int*> >(); 88bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, forward_iterator<int*> >(); 89bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, bidirectional_iterator<int*> >(); 90bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, random_access_iterator<int*> >(); 91bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<forward_iterator<const int*>, int*>(); 92bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 93bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, output_iterator<int*> >(); 94bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, forward_iterator<int*> >(); 95bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >(); 96bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, random_access_iterator<int*> >(); 97bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<bidirectional_iterator<const int*>, int*>(); 98bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 99bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, output_iterator<int*> >(); 100bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, forward_iterator<int*> >(); 101bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, bidirectional_iterator<int*> >(); 102bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, random_access_iterator<int*> >(); 103bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<random_access_iterator<const int*>, int*>(); 104bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 105bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, output_iterator<int*> >(); 106bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, forward_iterator<int*> >(); 107bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, bidirectional_iterator<int*> >(); 108bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, random_access_iterator<int*> >(); 109bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant test<const int*, int*>(); 1101c44f51de7392597b673b18f1b373810414816fdHoward Hinnant 111f4dfb45247a5b306ced6c71b2792530c1551078eEric Fiselier#if TEST_STD_VER >= 11 1121c44f51de7392597b673b18f1b373810414816fdHoward Hinnant X x[3] = {X(1), X(2), X(3)}; 1131c44f51de7392597b673b18f1b373810414816fdHoward Hinnant Y y[3] = {Y(1), Y(2), Y(3)}; 1141c44f51de7392597b673b18f1b373810414816fdHoward Hinnant std::adjacent_difference(x, x+3, y); 1151c44f51de7392597b673b18f1b373810414816fdHoward Hinnant#endif 116bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant} 117