lassq.hpp

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//
// Copyright (c) 2021-2023, University of Colorado Denver. All rights reserved.
//
// This file is part of <T>LAPACK.
// <T>LAPACK is free software: you can redistribute it and/or modify it under
// the terms of the BSD 3-Clause license. See the accompanying LICENSE file.
 
#ifndef TLAPACK_LEGACY_LASSQ_HH
#define TLAPACK_LEGACY_LASSQ_HH
 
#include "tlapack/lapack/lassq.hpp"
 
namespace tlapack {
namespace legacy {
 
    template <typename TX>
    void lassq(idx_t n,
               TX const* x,
               int_t incx,
               real_type<TX>& scl,
               real_type<TX>& sumsq)
    {
        // quick return
        if (isnan(scl) || isnan(sumsq) || n <= 0) return;
 
        tlapack_expr_with_vector(x_, TX, n, x, incx,
                                 return lassq(x_, scl, sumsq));
    }
 
}  // namespace legacy
}  // namespace tlapack
 
#endif  // TLAPACK_LEGACY_LASSQ_HH