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#include "isl_seq.h"
#include "isl_vec.h"
struct isl_vec *isl_vec_alloc(struct isl_ctx *ctx, unsigned size)
{
struct isl_vec *vec;
vec = isl_alloc_type(ctx, struct isl_vec);
if (!vec)
return NULL;
vec->block = isl_blk_alloc(ctx, size);
if (isl_blk_is_error(vec->block))
goto error;
vec->ctx = ctx;
isl_ctx_ref(ctx);
vec->ref = 1;
vec->size = size;
vec->el = vec->block.data;
return vec;
error:
isl_blk_free(ctx, vec->block);
return NULL;
}
struct isl_vec *isl_vec_copy(struct isl_vec *vec)
{
if (!vec)
return NULL;
vec->ref++;
return vec;
}
struct isl_vec *isl_vec_dup(struct isl_vec *vec)
{
struct isl_vec *vec2;
if (!vec)
return NULL;
vec2 = isl_vec_alloc(vec->ctx, vec->size);
isl_seq_cpy(vec2->el, vec->el, vec->size);
return vec2;
}
struct isl_vec *isl_vec_cow(struct isl_vec *vec)
{
struct isl_vec *vec2;
if (!vec)
return NULL;
if (vec->ref == 1)
return vec;
vec2 = isl_vec_dup(vec);
isl_vec_free( vec);
return vec2;
}
void isl_vec_free(struct isl_vec *vec)
{
if (!vec)
return;
if (--vec->ref > 0)
return;
isl_ctx_deref(vec->ctx);
isl_blk_free(vec->ctx, vec->block);
free(vec);
}
void isl_vec_dump(struct isl_vec *vec, FILE *out, int indent)
{
int i;
if (!vec) {
fprintf(out, "%*snull vec\n", indent, "");
return;
}
fprintf(out, "%*s[", indent, "");
for (i = 0; i < vec->size; ++i) {
if (i)
fprintf(out, ",");
isl_int_print(out, vec->el[i], 0);
}
fprintf(out, "]\n");
}
void isl_vec_lcm(struct isl_vec *vec, isl_int *lcm)
{
isl_seq_lcm(vec->block.data, vec->size, lcm);
}
/* Given a rational vector, with the denominator in the first element
* of the vector, round up all coordinates.
*/
struct isl_vec *isl_vec_ceil(struct isl_vec *vec)
{
vec = isl_vec_cow(vec);
if (!vec)
return NULL;
isl_seq_cdiv_q(vec->el + 1, vec->el + 1, vec->el[0], vec->size - 1);
isl_int_set_si(vec->el[0], 1);
return vec;
}
struct isl_vec *isl_vec_normalize(struct isl_vec *vec)
{
if (!vec)
return NULL;
isl_seq_normalize(vec->ctx, vec->el, vec->size);
return vec;
}
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