2019-08-04  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/88227
	* check.c (oct2bin):  New function.  Convert octal string to binary.
	(hex2bin): New function.  Convert hexidecimal string to binary.
	(bin2real): New function.  Convert binary string to REAL.  Use
	oct2bin and hex2bin.
	(gfc_boz2real):  Use fallback conversion bin2real.

From-SVN: r274096