cxx/test/algorithms/alg.modifying.operations/alg.generate/generate.pass.cpp

48 lines
1.1 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<ForwardIterator Iter, Callable Generator>
// requires OutputIterator<Iter, Generator::result_type>
// && CopyConstructible<Generator>
// void
// generate(Iter first, Iter last, Generator gen);
#include <algorithm>
#include <cassert>
#include "../../../iterators.h"
struct gen_test
{
int operator()() const {return 1;}
};
template <class Iter>
void
test()
{
const unsigned n = 4;
int ia[n] = {0};
std::generate(Iter(ia), Iter(ia+n), gen_test());
assert(ia[0] == 1);
assert(ia[1] == 1);
assert(ia[2] == 1);
assert(ia[3] == 1);
}
int main()
{
test<forward_iterator<int*> >();
test<bidirectional_iterator<int*> >();
test<random_access_iterator<int*> >();
test<int*>();
}