lartg.hpp

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//
// Copyright (c) 2017-2021, University of Tennessee. All rights reserved.
// 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_BLAS_LARTG_HH
#define TLAPACK_BLAS_LARTG_HH
 
#include "tlapack/base/utils.hpp"
#include "tlapack/blas/rotg.hpp"
 
namespace tlapack {
 
template <typename T, enable_if_t<is_same_v<T, real_type<T> >, int> = 0>
void lartg(const T& a, const T& b, real_type<T>& c, T& s, T& r)
{
    r = a;
    T btemp = b;
    rotg(r, btemp, c, s);
}
 
}  // namespace tlapack
 
#endif  //  #ifndef TLAPACK_BLAS_LARTG_HH