p_expr3_10
int p_expr3_10(int, struct value *, char);
if (p_expr3_10(3, v, flag) < 0)
if (p_expr3_10(3, v, flag && true) < 0)
: p_expr3_10(level + 1, &r, flag)) < 0) {
: p_expr3_10(level + 1, v, flag)) < 0)