Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.
elemental function bstr_I1P(n)result(bstr)!< Convert integer to string of bits.!<!< @note It is assumed that I1P is represented by means of 8 bits, but this is not ensured in all architectures.!<!<```fortran!< use penf!< print "(A)", bstr(n=1_I1P)!<```!=> 00000001 <<<integer(I1P),intent(in)::n!< Real to be converted.character(8)::bstr!< Returned bit-string containing input number.write(bstr,'(B8.8)')nendfunction bstr_I1P