The patch and ChangeLog shuod be sufficient to explain the change. Regression tested on x86_64-*-freebsd. OK to commit?
2016-11-22 Steven G. Kargl <ka...@gcc.gnu.org> PR fortran/78479 * expr.c (gfc_apply_init): Allocate a charlen if needed. 2016-11-22 Steven G. Kargl <ka...@gcc.gnu.org> PR fortran/78479 * gfortran.dg/pr78479.f90: New test. -- Steve
Index: gcc/fortran/expr.c =================================================================== --- gcc/fortran/expr.c (revision 242638) +++ gcc/fortran/expr.c (working copy) @@ -4132,7 +4132,12 @@ gfc_apply_init (gfc_typespec *ts, symbol { gfc_set_constant_character_len (len, ctor->expr, has_ts ? -1 : first_len); - ctor->expr->ts.u.cl->length = gfc_copy_expr (ts->u.cl->length); + if (!ctor->expr->ts.u.cl) + ctor->expr->ts.u.cl + = gfc_new_charlen (gfc_current_ns, ts->u.cl); + else + ctor->expr->ts.u.cl->length + = gfc_copy_expr (ts->u.cl->length); } } } Index: gcc/testsuite/gfortran.dg/pr78479.f90 =================================================================== --- gcc/testsuite/gfortran.dg/pr78479.f90 (nonexistent) +++ gcc/testsuite/gfortran.dg/pr78479.f90 (working copy) @@ -0,0 +1,6 @@ +! { dg-do compile } +program p + type t + character(3) :: c(1) = 'a' // ['b'] + end type +end