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                           '53MIN'  => $Math::NV::DBL_DENORM_MIN_MIN,
                           '64MIN'  => $Math::NV::LDBL_DENORM_MIN_MIN,
                           '106MIN' => $Math::NV::DBL_DENORM_MIN_MIN,
                           '113MIN' => $Math::NV::FLT128_DENORM_MIN_MIN,
                           );

$Math::NV::no_warn = 0; # set to 1 to disable warning about non-string argument
                        # set to 2 to disable output of the 2 non-matching values
                        # set to 3 to disable both of the above

# %_itsa is utilised in the formulation of the diagnostic message
# when it's detected that the provided arg is not a string.

my %_itsa = (
  1 => 'UV',
  2 => 'IV',
  3 => 'NV',
  4 => 'string',
  5 => 'Math::MPFR object',
  6 => 'Math::GMPf object',
  7 => 'Math::GMPq object',