diff options
Diffstat (limited to 'gcc/fortran/expr.c')
| -rw-r--r-- | gcc/fortran/expr.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/fortran/expr.c b/gcc/fortran/expr.c index 99db76d..0539b65 100644 --- a/gcc/fortran/expr.c +++ b/gcc/fortran/expr.c @@ -1797,10 +1797,19 @@ gfc_check_assign (gfc_expr * lvalue, gfc_expr * rvalue, int conform) return FAILURE; } + /* This is a guaranteed segfault and possibly a typo: p = NULL() + instead of p => NULL() */ if (rvalue->expr_type == EXPR_NULL) gfc_warning ("NULL appears on right-hand side in assignment at %L", &rvalue->where); + /* This is possibly a typo: x = f() instead of x => f() */ + if (gfc_option.warn_surprising + && rvalue->expr_type == EXPR_FUNCTION + && rvalue->symtree->n.sym->attr.pointer) + gfc_warning ("POINTER valued function appears on right-hand side of " + "assignment at %L", &rvalue->where); + /* Check size of array assignments. */ if (lvalue->rank != 0 && rvalue->rank != 0 && gfc_check_conformance ("Array assignment", lvalue, rvalue) != SUCCESS) |