isl_vec.c

   1 #include "isl_vec.h"
   2
   3 struct isl_vec *isl_vec_alloc(struct isl_ctx *ctx, unsigned size)
   4 {
   5         struct isl_vec *vec;
   6
   7         vec = isl_alloc_type(ctx, struct isl_vec);
   8         if (!vec)
   9                 return NULL;
  10
  11         vec->block = isl_blk_alloc(ctx, size);
  12         if (isl_blk_is_error(vec->block))
  13                 goto error;
  14
  15         vec->ref = 1;
  16         vec->size = size;
  17
  18         return vec;
  19 error:
  20         isl_blk_free(ctx, vec->block);
  21         return NULL;
  22 }
  23
  24 struct isl_vec *isl_vec_copy(struct isl_ctx *ctx, struct isl_vec *vec)
  25 {
  26         if (!vec)
  27                 return NULL;
  28
  29         vec->ref++;
  30         return vec;
  31 }
  32
  33 struct isl_vec *isl_vec_dup(struct isl_ctx *ctx, struct isl_vec *vec)
  34 {
  35         struct isl_vec *vec2;
  36
  37         if (!vec)
  38                 return NULL;
  39         vec2 = isl_vec_alloc(ctx, vec->size);
  40         isl_seq_cpy(vec2->block.data, vec->block.data, vec->size);
  41         return vec2;
  42 }
  43
  44 struct isl_vec *isl_vec_cow(struct isl_ctx *ctx, struct isl_vec *vec)
  45 {
  46         struct isl_vec *vec2;
  47         if (!vec)
  48                 return NULL;
  49
  50         if (vec->ref == 1)
  51                 return vec;
  52
  53         vec2 = isl_vec_dup(ctx, vec);
  54         isl_vec_free(ctx, vec);
  55         return vec2;
  56 }
  57
  58 void isl_vec_free(struct isl_ctx *ctx, struct isl_vec *vec)
  59 {
  60         if (!vec)
  61                 return;
  62
  63         if (--vec->ref > 0)
  64                 return;
  65
  66         isl_blk_free(ctx, vec->block);
  67         free(vec);
  68 }
  69
  70 void isl_vec_dump(struct isl_ctx *ctx, struct isl_vec *vec,
  71                                 FILE *out, int indent)
  72 {
  73         int i;
  74
  75         if (!vec) {
  76                 fprintf(out, "%*snull vec\n", indent, "");
  77                 return;
  78         }
  79
  80         fprintf(out, "%*s[", indent, "");
  81         for (i = 0; i < vec->size; ++i) {
  82                 if (i)
  83                     fprintf(out, ",");
  84                 isl_int_print(out, vec->block.data[i], 0);
  85         }
  86         fprintf(out, "]\n");
  87 }
  88
  89 void isl_vec_lcm(struct isl_ctx *ctx, struct isl_vec *vec, isl_int *lcm)
  90 {
  91         isl_seq_lcm(vec->block.data, vec->size, lcm);
  92 }