2 * Copyright 2008-2009 Katholieke Universiteit Leuven
4 * Use of this software is governed by the GNU LGPLv2.1 license
6 * Written by Sven Verdoolaege, K.U.Leuven, Departement
7 * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
13 struct isl_vec *isl_vec_alloc(struct isl_ctx *ctx, unsigned size)
17 vec = isl_alloc_type(ctx, struct isl_vec);
21 vec->block = isl_blk_alloc(ctx, size);
22 if (isl_blk_is_error(vec->block))
29 vec->el = vec->block.data;
33 isl_blk_free(ctx, vec->block);
37 struct isl_vec *isl_vec_copy(struct isl_vec *vec)
46 struct isl_vec *isl_vec_dup(struct isl_vec *vec)
52 vec2 = isl_vec_alloc(vec->ctx, vec->size);
53 isl_seq_cpy(vec2->el, vec->el, vec->size);
57 struct isl_vec *isl_vec_cow(struct isl_vec *vec)
66 vec2 = isl_vec_dup(vec);
71 void isl_vec_free(struct isl_vec *vec)
79 isl_ctx_deref(vec->ctx);
80 isl_blk_free(vec->ctx, vec->block);
84 void isl_vec_dump(struct isl_vec *vec, FILE *out, int indent)
89 fprintf(out, "%*snull vec\n", indent, "");
93 fprintf(out, "%*s[", indent, "");
94 for (i = 0; i < vec->size; ++i) {
97 isl_int_print(out, vec->el[i], 0);
102 void isl_vec_lcm(struct isl_vec *vec, isl_int *lcm)
104 isl_seq_lcm(vec->block.data, vec->size, lcm);
107 /* Given a rational vector, with the denominator in the first element
108 * of the vector, round up all coordinates.
110 struct isl_vec *isl_vec_ceil(struct isl_vec *vec)
112 vec = isl_vec_cow(vec);
116 isl_seq_cdiv_q(vec->el + 1, vec->el + 1, vec->el[0], vec->size - 1);
118 isl_int_set_si(vec->el[0], 1);
123 struct isl_vec *isl_vec_normalize(struct isl_vec *vec)
127 isl_seq_normalize(vec->ctx, vec->el, vec->size);
131 __isl_give isl_vec *isl_vec_scale(__isl_take isl_vec *vec, isl_int m)
133 if (isl_int_is_one(m))
135 vec = isl_vec_cow(vec);
138 isl_seq_scale(vec->el, vec->el, m, vec->size);
142 __isl_give isl_vec *isl_vec_add(__isl_take isl_vec *vec1,
143 __isl_take isl_vec *vec2)
145 vec1 = isl_vec_cow(vec1);
149 isl_assert(vec1->ctx, vec1->size == vec2->size, goto error);
151 isl_seq_combine(vec1->el, vec1->ctx->one, vec1->el,
152 vec1->ctx->one, vec2->el, vec1->size);