2019-08-10 Steven G. Kargl <kargl@gcc.gnu.org> * decl.c (match_old_style_init): Use a clearer error message. * expr.c (gfc_check_assign): Update BOZ checking to provide a stricter adherence to the Fortran standard. Use gfc_invalid_boz () to relax errors into warnings. * gfortran.h (gfc_isym_id): Add new ids GFC_ISYM_DFLOAT, GFC_ISYM_FLOAT, GFC_ISYM_REALPART, and GFC_ISYM_SNGL * intrinsic.c (add_functions): Use new ids to split REAL generic into REAL, FLOAT, DFLOAT, SNGL, and REALPART generics. (gfc_intrinsic_func_interface): Allow new intrinsics in an initialization expression * resolve.c (resolve_operator): Deal with BOZ as operands. Use gfc_invalid_boz to allow for errors or warnings via the -fallow-invalid-boz option. A BOZ cannot be an operand to an unary operator. Both operands of a binary operator cannot be BOZ. For binary operators, convert a BOZ operand into the type and kind of the other operand for REAL or INTEGER operand. * trans-intrinsic.c: Use new ids to cause conversions to happen. 2019-08-10 Steven G. Kargl <kargl@gcc.gnu.org> * gfortran.dg/boz_8.f90: Adjust error messages. * gfortran.dg/nan_4.f90: Ditto. * gfortran.dg/boz_1.f90: Add -fallow-invalid-boz to dg-options, and test for warnings. * gfortran.dg/boz_3.f90: Ditto. * gfortran.dg/boz_4.f90: Ditto. * gfortran.dg/dec_structure_6.f90: Ditto. * gfortran.dg/ibits.f90: Ditto. From-SVN: r274257