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_cdiv_q(isl_int *dst, isl_int *src, isl_int m, unsigned len)
55 for (i = 0; i < len; ++i)
56 isl_int_cdiv_q(dst[i], src[i], m);
59 void isl_seq_fdiv_q(isl_int *dst, isl_int *src, isl_int m, unsigned len)
62 for (i = 0; i < len; ++i)
63 isl_int_fdiv_q(dst[i], src[i], m);
66 void isl_seq_fdiv_r(isl_int *dst, isl_int *src, isl_int m, unsigned len)
69 for (i = 0; i < len; ++i)
70 isl_int_fdiv_r(dst[i], src[i], m);
73 void isl_seq_combine(isl_int *dst, isl_int m1, isl_int *src1,
74 isl_int m2, isl_int *src2, unsigned len)
80 for (i = 0; i < len; ++i) {
81 isl_int_mul(tmp, m1, src1[i]);
82 isl_int_addmul(tmp, m2, src2[i]);
83 isl_int_set(dst[i], tmp);
89 * Let d = dst[pos] and s = src[pos]
90 * dst is replaced by |s| dst - sgn(s)d src
92 void isl_seq_elim(isl_int *dst, isl_int *src, unsigned pos, unsigned len,
98 if (isl_int_is_zero(dst[pos]))
104 isl_int_gcd(a, src[pos], dst[pos]);
105 isl_int_divexact(b, dst[pos], a);
106 if (isl_int_is_pos(src[pos]))
108 isl_int_divexact(a, src[pos], a);
110 isl_seq_combine(dst, a, dst, b, src, len);
113 isl_int_mul(*m, *m, a);
119 int isl_seq_eq(isl_int *p1, isl_int *p2, unsigned len)
122 for (i = 0; i < len; ++i)
123 if (isl_int_ne(p1[i], p2[i]))
128 int isl_seq_cmp(isl_int *p1, isl_int *p2, unsigned len)
132 for (i = 0; i < len; ++i)
133 if ((cmp = isl_int_cmp(p1[i], p2[i])) != 0)
138 int isl_seq_is_neg(isl_int *p1, isl_int *p2, unsigned len)
142 for (i = 0; i < len; ++i) {
143 if (isl_int_abs_ne(p1[i], p2[i]))
145 if (isl_int_is_zero(p1[i]))
147 if (isl_int_eq(p1[i], p2[i]))
153 int isl_seq_first_non_zero(isl_int *p, unsigned len)
157 for (i = 0; i < len; ++i)
158 if (!isl_int_is_zero(p[i]))
163 int isl_seq_abs_min_non_zero(isl_int *p, unsigned len)
165 int i, min = isl_seq_first_non_zero(p, len);
168 for (i = min + 1; i < len; ++i) {
169 if (isl_int_is_zero(p[i]))
171 if (isl_int_abs_lt(p[i], p[min]))
177 void isl_seq_gcd(isl_int *p, unsigned len, isl_int *gcd)
179 int i, min = isl_seq_abs_min_non_zero(p, len);
182 isl_int_set_si(*gcd, 0);
185 isl_int_abs(*gcd, p[min]);
186 for (i = 0; isl_int_cmp_si(*gcd, 1) > 0 && i < len; ++i) {
189 if (isl_int_is_zero(p[i]))
191 isl_int_gcd(*gcd, *gcd, p[i]);
195 void isl_seq_normalize(isl_int *p, unsigned len)
202 isl_seq_gcd(p, len, &gcd);
203 if (!isl_int_is_zero(gcd))
204 isl_seq_scale_down(p, p, gcd, len);
208 void isl_seq_lcm(isl_int *p, unsigned len, isl_int *lcm)
213 isl_int_set_si(*lcm, 1);
216 isl_int_set(*lcm, p[0]);
217 for (i = 1; i < len; ++i)
218 isl_int_lcm(*lcm, *lcm, p[i]);
221 void isl_seq_inner_product(isl_int *p1, isl_int *p2, unsigned len,
226 isl_int_set_si(*prod, 0);
229 isl_int_mul(*prod, p1[0], p2[0]);
230 for (i = 1; i < len; ++i)
231 isl_int_addmul(*prod, p1[i], p2[i]);
234 uint32_t isl_seq_hash(isl_int *p, unsigned len, uint32_t hash)
237 for (i = 0; i < len; ++i) {
238 if (isl_int_is_zero(p[i]))
242 hash = isl_int_hash(p[i], hash);
247 uint32_t isl_seq_get_hash(isl_int *p, unsigned len)
249 uint32_t hash = isl_hash_init();
251 return isl_seq_hash(p, len, hash);
254 uint32_t isl_seq_get_hash_bits(isl_int *p, unsigned len, unsigned bits)
258 hash = isl_seq_get_hash(p, len);
259 return isl_hash_bits(hash, bits);