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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)
  19 {
  20         int i = ao_scheme_poly_int(p);
  21         printf("%d", i);
  22 }
  23
  24 #ifdef AO_SCHEME_FEATURE_BIGINT
  25
  26 int32_t
  27 ao_scheme_poly_integer(ao_poly p)
  28 {
  29         switch (ao_scheme_poly_base_type(p)) {
  30         case AO_SCHEME_INT:
  31                 return ao_scheme_poly_int(p);
  32         case AO_SCHEME_OTHER:
  33                 if (ao_scheme_other_type(ao_scheme_poly_other(p)) == AO_SCHEME_BIGINT)
  34                         return ao_scheme_bigint_int(ao_scheme_poly_bigint(p)->value);
  35         }
  36         return AO_SCHEME_NOT_INTEGER;
  37 }
  38
  39 ao_poly
  40 ao_scheme_integer_poly(int32_t p)
  41 {
  42         struct ao_scheme_bigint *bi;
  43
  44         if (AO_SCHEME_MIN_INT <= p && p <= AO_SCHEME_MAX_INT)
  45                 return ao_scheme_int_poly(p);
  46         bi = ao_scheme_alloc(sizeof (struct ao_scheme_bigint));
  47         bi->value = ao_scheme_int_bigint(p);
  48         return ao_scheme_bigint_poly(bi);
  49 }
  50
  51 static void bigint_mark(void *addr)
  52 {
  53         (void) addr;
  54 }
  55
  56 static int bigint_size(void *addr)
  57 {
  58         if (!addr)
  59                 return 0;
  60         return sizeof (struct ao_scheme_bigint);
  61 }
  62
  63 static void bigint_move(void *addr)
  64 {
  65         (void) addr;
  66 }
  67
  68 const struct ao_scheme_type ao_scheme_bigint_type = {
  69         .mark = bigint_mark,
  70         .size = bigint_size,
  71         .move = bigint_move,
  72         .name = "bigint",
  73 };
  74
  75 void
  76 ao_scheme_bigint_write(ao_poly p)
  77 {
  78         struct ao_scheme_bigint *bi = ao_scheme_poly_bigint(p);
  79
  80         printf("%d", ao_scheme_bigint_int(bi->value));
  81 }
  82 #endif /* AO_SCHEME_FEATURE_BIGINT */