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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.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<class Iter, IntegralLike Size, Callable Generator>
// requires OutputIterator<Iter, Generator::result_type>
// && CopyConstructible<Generator>
// void
// generate_n(Iter first, Size n, Generator gen);
#ifdef _MSC_VER
#pragma warning(disable: 4244) // conversion from 'const double' to 'int', possible loss of data
#endif
#include <algorithm>
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
#include "user_defined_integral.hpp"
struct gen_test
{
int operator()() const {return 2;}
};
template <class Iter, class Size>
void
test2()
{
const unsigned n = 4;
int ia[n] = {0};
assert(std::generate_n(Iter(ia), Size(n), gen_test()) == Iter(ia+n));
assert(ia[0] == 2);
assert(ia[1] == 2);
assert(ia[2] == 2);
assert(ia[3] == 2);
}
template <class Iter>
void
test()
{
test2<Iter, int>();
test2<Iter, unsigned int>();
test2<Iter, long>();
test2<Iter, unsigned long>();
test2<Iter, UserDefinedIntegral<unsigned> >();
test2<Iter, float>();
test2<Iter, double>(); // this is PR#35498
test2<Iter, long double>();
}
int main()
{
test<forward_iterator<int*> >();
test<bidirectional_iterator<int*> >();
test<random_access_iterator<int*> >();
test<int*>();
}
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