libcxx/test/std/numerics/numarray/template.valarray/valarray.members/sum.pass.cpp


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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <valarray>

// template<class T> class valarray;

// value_type sum() const;

#include <valarray>
#include <cassert>

int main()
{
    {
        typedef double T;
        T a1[] = {1.5, 2.5, 3, 4, 5.5};
        const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
        std::valarray<T> v1(a1, N1);
        assert(v1.sum() == 16.5);
    }
}