diff options
Diffstat (limited to 'gcc/fortran/parse.c')
| -rw-r--r-- | gcc/fortran/parse.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/fortran/parse.c b/gcc/fortran/parse.c index 86f2c42..d78a2c0 100644 --- a/gcc/fortran/parse.c +++ b/gcc/fortran/parse.c @@ -2399,6 +2399,29 @@ accept_statement (gfc_statement st) } +/* Clear default character types with charlen pointers that are about + to become invalid. */ + +static void +clear_default_charlen (gfc_namespace *ns, const gfc_charlen *cl, + const gfc_charlen *end) +{ + gfc_typespec *ts; + + for (ts = &ns->default_type[0]; ts < &ns->default_type[GFC_LETTERS]; ts++) + if (ts->type == BT_CHARACTER) + { + const gfc_charlen *cl2; + for (cl2 = cl; cl2 != end; cl2 = cl2->next) + if (ts->u.cl == cl2) + { + ts->u.cl = NULL; + ts->type = BT_UNKNOWN; + break; + } + } +} + /* Undo anything tentative that has been built for the current statement. */ @@ -2406,6 +2429,8 @@ static void reject_statement (void) { /* Revert to the previous charlen chain. */ + clear_default_charlen (gfc_current_ns, + gfc_current_ns->cl_list, gfc_current_ns->old_cl_list); gfc_free_charlen (gfc_current_ns->cl_list, gfc_current_ns->old_cl_list); gfc_current_ns->cl_list = gfc_current_ns->old_cl_list; |