parameters: (builder, val)
return_statement: return builder.fcmp_unordered('uno', val, val)
docstring: Return a condition testing whether *val* is a NaN.
docstring_summary: Return a condition testing whether *val* is a NaN.
docstring_tokens: Return a condition testing whether * val * is a NaN .
function: def is_nan(builder, val):
      """
      Return a condition testing whether *val* is a NaN.
      """
      return builder.fcmp_unordered('uno', val, val)
function_tokens: def is_nan ( builder , val ) : return builder . fcmp_unordered ( 'uno' , val , val )