2 * HOST_BITS_PER_WIDE_INT bits. */
double_int double_int_mul (double_int, double_int);
+double_int double_int_mul_with_sign (double_int, double_int, bool, int *);
double_int double_int_add (double_int, double_int);
double_int double_int_sub (double_int, double_int);
double_int double_int_neg (double_int);
double_int double_int_divmod (double_int, double_int, bool, unsigned, double_int *);
double_int double_int_sdivmod (double_int, double_int, unsigned, double_int *);
double_int double_int_udivmod (double_int, double_int, unsigned, double_int *);
+
double_int double_int_setbit (double_int, unsigned);
+int double_int_ctz (double_int);
/* Logical operations. */