From f9809ef57005409ee658294d6e8dad9ee8897e88 Mon Sep 17 00:00:00 2001 From: Harald Anlauf Date: Sat, 28 Aug 2021 20:09:44 +0200 Subject: Fortran - reject function entries with mismatched characteristics gcc/fortran/ChangeLog: PR fortran/87737 * resolve.c (resolve_entries): For functions of type CHARACTER tighten the checks for matching characteristics. gcc/testsuite/ChangeLog: PR fortran/87737 * gfortran.dg/entry_24.f90: New test. --- gcc/fortran/resolve.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'gcc/fortran/resolve.c') diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index 5b9ba43..f641d0d 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -804,6 +804,15 @@ resolve_entries (gfc_namespace *ns) the same string length, i.e. both len=*, or both len=4. Having both len= is also possible, but difficult to check at compile time. */ + else if (ts->type == BT_CHARACTER + && (el->sym->result->attr.allocatable + != ns->entries->sym->result->attr.allocatable)) + { + gfc_error ("Function %s at %L has entry %s with mismatched " + "characteristics", ns->entries->sym->name, + &ns->entries->sym->declared_at, el->sym->name); + return; + } else if (ts->type == BT_CHARACTER && ts->u.cl && fts->u.cl && (((ts->u.cl->length && !fts->u.cl->length) ||(!ts->u.cl->length && fts->u.cl->length)) -- cgit v1.1