3 void isl_seq_clr(isl_int *p, unsigned len)
6 for (i = 0; i < len; ++i)
7 isl_int_set_si(p[i], 0);
10 void isl_seq_neg(isl_int *dst, isl_int *src, unsigned len)
13 for (i = 0; i < len; ++i)
14 isl_int_neg(dst[i], src[i]);
17 void isl_seq_cpy(isl_int *dst, isl_int *src, unsigned len)
20 for (i = 0; i < len; ++i)
21 isl_int_set(dst[i], src[i]);
24 void isl_seq_submul(isl_int *dst, isl_int f, isl_int *src, unsigned len)
27 for (i = 0; i < len; ++i)
28 isl_int_submul(dst[i], f, src[i]);
31 void isl_seq_swp_or_cpy(isl_int *dst, isl_int *src, unsigned len)
34 for (i = 0; i < len; ++i)
35 isl_int_swap_or_set(dst[i], src[i]);
38 void isl_seq_scale(isl_int *dst, isl_int *src, isl_int m, unsigned len)
41 for (i = 0; i < len; ++i)
42 isl_int_mul(dst[i], src[i], m);
45 void isl_seq_scale_down(isl_int *dst, isl_int *src, isl_int m, unsigned len)
48 for (i = 0; i < len; ++i)
49 isl_int_divexact(dst[i], src[i], m);
52 void isl_seq_combine(isl_int *dst, isl_int m1, isl_int *src1,
53 isl_int m2, isl_int *src2, unsigned len)
59 for (i = 0; i < len; ++i) {
60 isl_int_mul(tmp, m1, src1[i]);
61 isl_int_addmul(tmp, m2, src2[i]);
62 isl_int_set(dst[i], tmp);
68 * Let d = dst[pos] and s = src[pos]
69 * dst is replaced by |s| dst - sgn(s)d src
71 void isl_seq_elim(isl_int *dst, isl_int *src, unsigned pos, unsigned len,
77 if (isl_int_is_zero(dst[pos]))
83 isl_int_gcd(a, src[pos], dst[pos]);
84 isl_int_divexact(b, dst[pos], a);
85 if (isl_int_is_pos(src[pos]))
87 isl_int_divexact(a, src[pos], a);
89 isl_seq_combine(dst, a, dst, b, src, len);
92 isl_int_mul(*m, *m, a);
98 int isl_seq_eq(isl_int *p1, isl_int *p2, unsigned len)
101 for (i = 0; i < len; ++i)
102 if (isl_int_ne(p1[i], p2[i]))
107 int isl_seq_cmp(isl_int *p1, isl_int *p2, unsigned len)
111 for (i = 0; i < len; ++i)
112 if ((cmp = isl_int_cmp(p1[i], p2[i])) != 0)
117 int isl_seq_is_neg(isl_int *p1, isl_int *p2, unsigned len)
121 for (i = 0; i < len; ++i) {
122 if (isl_int_abs_ne(p1[i], p2[i]))
124 if (isl_int_is_zero(p1[i]))
126 if (isl_int_eq(p1[i], p2[i]))
132 int isl_seq_first_non_zero(isl_int *p, unsigned len)
136 for (i = 0; i < len; ++i)
137 if (!isl_int_is_zero(p[i]))
142 int isl_seq_abs_min_non_zero(isl_int *p, unsigned len)
144 int i, min = isl_seq_first_non_zero(p, len);
147 for (i = min + 1; i < len; ++i) {
148 if (isl_int_is_zero(p[i]))
150 if (isl_int_abs_lt(p[i], p[min]))
156 void isl_seq_gcd(isl_int *p, unsigned len, isl_int *gcd)
158 int i, min = isl_seq_abs_min_non_zero(p, len);
161 isl_int_set_si(*gcd, 0);
164 isl_int_abs(*gcd, p[min]);
165 for (i = 0; isl_int_cmp_si(*gcd, 1) > 0 && i < len; ++i) {
168 if (isl_int_is_zero(p[i]))
170 isl_int_gcd(*gcd, *gcd, p[i]);
174 void isl_seq_inner_product(isl_int *p1, isl_int *p2, unsigned len,
179 isl_int_set_si(*prod, 0);
182 isl_int_mul(*prod, p1[0], p2[0]);
183 for (i = 1; i < len; ++i)
184 isl_int_addmul(*prod, p1[i], p2[i]);
187 uint32_t isl_seq_hash(isl_int *p, unsigned len, uint32_t hash)
190 for (i = 0; i < len; ++i) {
191 if (isl_int_is_zero(p[i]))
195 hash = isl_int_hash(p[i], hash);
200 uint32_t isl_seq_get_hash(isl_int *p, unsigned len)
202 uint32_t hash = isl_hash_init();
204 return isl_seq_hash(p, len, hash);
207 uint32_t isl_seq_get_hash_bits(isl_int *p, unsigned len, unsigned bits)
211 hash = isl_seq_get_hash(p, len);
212 return isl_hash_bits(hash, bits);