lapack_error.hpp

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#pragma once
 
#include <uni20/common/diagnostic_error.hpp>
#include <uni20/config.hpp>
 
#include <string>
#include <string_view>
#include <utility>
 
namespace uni20::lapack
{
 
namespace detail
{
inline std::string lapack_error_message(std::string_view routine, std::string_view reason, blas_int info)
{
  return "LAPACK " + std::string(routine) + " " + std::string(reason) + " (INFO=" + std::to_string(info) + ")";
}
} // namespace detail
 
class LapackError : public uni20::diagnostic_error {
  public:
    LapackError(std::string routine, blas_int info, std::string reason)
        : diagnostic_error(detail::lapack_error_message(routine, reason, info)), routine_(std::move(routine)),
          info_(info), reason_(std::move(reason))
    {}
 
    [[nodiscard]] std::string const& routine() const noexcept { return routine_; }
 
    [[nodiscard]] blas_int info() const noexcept { return info_; }
 
    [[nodiscard]] std::string const& reason() const noexcept { return reason_; }
 
  private:
    std::string routine_;
    blas_int info_;
    std::string reason_;
};
 
} // namespace uni20::lapack