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   1 /*
   2  * Copyright © 2016 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  */
  14
  15 #include "ao_scheme.h"
  16
  17 void
  18 ao_scheme_int_write(ao_poly p, bool write)
  19 {
  20         int i = ao_scheme_poly_int(p);
  21         (void) write;
  22         printf("%d", i);
  23 }
  24
  25 #ifdef AO_SCHEME_FEATURE_BIGINT
  26
  27 int32_t
  28 ao_scheme_poly_integer(ao_poly p, bool *fail)
  29 {
  30         if (fail)
  31                 *fail = false;
  32         switch (ao_scheme_poly_base_type(p)) {
  33         case AO_SCHEME_INT:
  34                 return ao_scheme_poly_int(p);
  35         case AO_SCHEME_BIGINT:
  36                 return ao_scheme_poly_bigint(p)->value;
  37         }
  38         if (fail)
  39                 *fail = true;
  40         return 0;
  41 }
  42
  43 ao_poly
  44 ao_scheme_integer_poly(int32_t p)
  45 {
  46         struct ao_scheme_bigint *bi;
  47
  48         if (AO_SCHEME_MIN_INT <= p && p <= AO_SCHEME_MAX_INT)
  49                 return ao_scheme_int_poly(p);
  50         bi = ao_scheme_alloc(sizeof (struct ao_scheme_bigint));
  51         bi->value = p;
  52         return ao_scheme_bigint_poly(bi);
  53 }
  54
  55 static void bigint_mark(void *addr)
  56 {
  57         (void) addr;
  58 }
  59
  60 static int bigint_size(void *addr)
  61 {
  62         if (!addr)
  63                 return 0;
  64         return sizeof (struct ao_scheme_bigint);
  65 }
  66
  67 static void bigint_move(void *addr)
  68 {
  69         (void) addr;
  70 }
  71
  72 const struct ao_scheme_type ao_scheme_bigint_type = {
  73         .mark = bigint_mark,
  74         .size = bigint_size,
  75         .move = bigint_move,
  76         .name = "bigint",
  77 };
  78
  79 void
  80 ao_scheme_bigint_write(ao_poly p, bool write)
  81 {
  82         struct ao_scheme_bigint *bi = ao_scheme_poly_bigint(p);
  83
  84         (void) write;
  85         printf("%d", bi->value);
  86 }
  87 #endif /* AO_SCHEME_FEATURE_BIGINT */