try to shut up compiler

diff --git a/src/lib/util/calc.c b/src/lib/util/calc.c
index f5966b9a0ee77de9845c01cc8517e841c748886a..3b7a8c740ae68ebc111d83664fc2dd38d24bc2dc 100644 (file)
--- a/src/lib/util/calc.c
+++ b/src/lib/util/calc.c
@@ -1065,6 +1065,7 @@ int fr_value_calc_binary_op(TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t hint
        int rcode = -1;
        fr_value_box_t one, two;
        fr_value_box_t out;
+       fr_binary_op_t func;
 
        fr_assert(fr_type_is_leaf(a->type));
        fr_assert(fr_type_is_leaf(b->type));
@@ -1216,7 +1217,8 @@ int fr_value_calc_binary_op(TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t hint
        case T_OP_PREPEND:
                fr_assert(hint != FR_TYPE_NULL);
 
-               if (!calc_type[hint]) {
+               func = calc_type[hint];
+               if (!func) {
                        fr_strerror_printf("Cannot perform any operations for destination type %s",
                                           fr_table_str_by_value(fr_value_box_type_table, hint, "<INVALID>"));
                        rcode = -1;
@@ -1230,7 +1232,7 @@ int fr_value_calc_binary_op(TALLOC_CTX *ctx, fr_value_box_t *dst, fr_type_t hint
                 */
                fr_value_box_init(&out, hint, NULL, false);
 
-               rcode = calc_type[hint](ctx, &out, a, op, b);
+               rcode = func(ctx, &out, a, op, b); /* not calc_type[hint], to shut up clang */
                if (rcode < 0) goto done;
 
                fr_value_box_copy_shallow(NULL, dst, &out);