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-rw-r--r--test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp53
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
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+++ b/test/std/numerics/numeric.ops/accumulate/accumulate.pass.cpp
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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.
+//
+//===----------------------------------------------------------------------===//
+
+// <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*>();
+}