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Diffstat (limited to 'test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp')
-rw-r--r-- | test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp b/test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp new file mode 100644 index 0000000000000..aae97ef41175a --- /dev/null +++ b/test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp @@ -0,0 +1,53 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// <numeric> + +// template <InputIterator Iter, MoveConstructible T> +// requires HasPlus<T, Iter::reference> +// && HasAssign<T, HasPlus<T, Iter::reference>::result_type> +// T +// accumulate(Iter first, Iter last, T init); + +#include <numeric> +#include <cassert> + +#include "test_iterators.h" + +template <class Iter, class T> +void +test(Iter first, Iter last, T init, T x) +{ + assert(std::accumulate(first, last, init) == x); +} + +template <class Iter> +void +test() +{ + int ia[] = {1, 2, 3, 4, 5, 6}; + unsigned sa = sizeof(ia) / sizeof(ia[0]); + test(Iter(ia), Iter(ia), 0, 0); + test(Iter(ia), Iter(ia), 10, 10); + test(Iter(ia), Iter(ia+1), 0, 1); + test(Iter(ia), Iter(ia+1), 10, 11); + test(Iter(ia), Iter(ia+2), 0, 3); + test(Iter(ia), Iter(ia+2), 10, 13); + test(Iter(ia), Iter(ia+sa), 0, 21); + test(Iter(ia), Iter(ia+sa), 10, 31); +} + +int main() +{ + test<input_iterator<const int*> >(); + test<forward_iterator<const int*> >(); + test<bidirectional_iterator<const int*> >(); + test<random_access_iterator<const int*> >(); + test<const int*>(); +} |