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 byte_size_chr(i)result(bytes)!< Compute the number of bytes of a character variable.!<!<```fortran!< use penf!< print FI1P, byte_size('ab')!<```!=> 2 <<<character(*),intent(in)::i!< Character variable whose number of bytes must be computed.integer(I4P)::bytes!< Number of bytes of c.bytes=bit_size(i)/8_I4Pendfunction byte_size_chr