1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <algorithm> 11 12 // template<class Iter, IntegralLike Size, Callable Generator> 13 // requires OutputIterator<Iter, Generator::result_type> 14 // && CopyConstructible<Generator> 15 // void 16 // generate_n(Iter first, Size n, Generator gen); 17 18 #include <algorithm> 19 #include <cassert> 20 21 #include "test_iterators.h" 22 23 struct gen_test 24 { 25 int operator()() const {return 2;} 26 }; 27 28 template <class Iter> 29 void 30 test() 31 { 32 const unsigned n = 4; 33 int ia[n] = {0}; 34 assert(std::generate_n(Iter(ia), n, gen_test()) == Iter(ia+n)); 35 assert(ia[0] == 2); 36 assert(ia[1] == 2); 37 assert(ia[2] == 2); 38 assert(ia[3] == 2); 39 } 40 41 int main() 42 { 43 test<forward_iterator<int*> >(); 44 test<bidirectional_iterator<int*> >(); 45 test<random_access_iterator<int*> >(); 46 test<int*>(); 47 } 48
